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Electrical Relays and Accessories

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Littelfuse

Used when replacing an Atkinson Omser II with an SE-130-Series Monitor.

PMA-8 Retrofit Adapter Plate, Panel Mount, M4x12 Mounting Screw, For Use With SE-134, SE-134C, SE-135 Relay, Panel Mount Adapter

MFR: Littelfuse

MFR #: PMA-8

UPC: 079458978421

Item #: 1008517

Littelfuse

Remote indication and reset for the SE-330, SE-330AU, and SE-330HV. NEMA 4 and NEMA 13 rating. Standard 22-mm mounting.

RK-332 Remote Indication/Reset Assembly, NEMA 4/13, 22 mm Standard Mount, For Use With SE-330/SE-330HV High Voltage Neutral Grounding Resistor and SE-330AU Neutral Earthing Resistor, Motor Protection Relay

MFR: Littelfuse

MFR #: RK-332

UPC: 079458987836

Item #: 1204732

Littelfuse

The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.

EFCT-1 High Quality Ground Fault Current Transformer With 6 m Cable, 3.2 in, 100:1, 600 V AC Insulation Level, 5 A, 3% at 0.01 VA Accuracy, 50 to 400 Hz, -67 to 140 deg F Temperature, Screw Mount

MFR: Littelfuse

MFR #: EFCT-1

UPC: 079458977684

Item #: 534791

Littelfuse

The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.

SE-330-SMA Surface Mount Adapter

MFR: Littelfuse

MFR #: SE-330-SMA

UPC: 079458988604

Item #: 1204733

Littelfuse

The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.

EFCT-26 Ground Fault Current Transformer With 6 m Cable, 1 in, 100:1, 600 V AC Insulation Level, 3% at 0.01 VA Accuracy, 50 to 400 Hz, -67 to 140 deg F Temperature, Screw Mount

MFR: Littelfuse

MFR #: EFCT-26

UPC: 079458977721

Item #: 866232

Littelfuse

Used On Systems Up To 15 kV.

ER-15KV Non-Continuous Duty Sensing Resistor, 8400 V AC, 84 mA, 100 kOhm, For Use With SE-330/SE-325/SE-330HV High Voltage Neutral Grounding Resistor and SE-330AU Neutral Earthing Resistor, Motor Protection Relay

MFR: Littelfuse

MFR #: ER-15KV

UPC: 079458977905

Item #: 501382

Littelfuse

MOTOR OVERLOAD PROTECTION 8000

MP8000 Relay, 5 A, SPDT/SPST Contact, 240 V AC V Coil

MFR: Littelfuse

MFR #: MP8000

UPC: 079458046113

Item #: 719830

Littelfuse

No Image Available

SE-330-07-00 SE-330 Neutral-Grounding Resistor Monitor, Ethernet Protocol, 65 to 265, 85 to 275 V AC/V DC, 50 to 60 Hz

MFR: Littelfuse

MFR #: SE-330-07-00

UPC: 079458812848

Item #: 1528349

Littelfuse

No Image Available

SE-330-04-00 SE-330 Neutral-Grounding Resistor Monitor, Ethernet Protocol, 65 to 265, 85 to 275 V AC/V DC, 50 to 60 Hz

MFR: Littelfuse

MFR #: SE-330-04-00

UPC: 079458812473

Item #: 1526332

Littelfuse

No Image Available

601 Monitor, 250 V, 6.3 A

MFR: Littelfuse

MFR #: 601

UPC: 079458989632

Item #: 1543863

Littelfuse

No Image Available

460-B 3-Phase Monitor, 190 to 480 V AC, 10 A, 1 Form C Contact

MFR: Littelfuse

MFR #: 460-B

UPC: 079458990591

Item #: 1359341

Littelfuse

No Image Available

KRDM215M KRDM Time Delay Relay, 24 V DC, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: KRDM215M

UPC: 079458994773

Item #: 1489833

Littelfuse

No Image Available

460-100-SP 1-Phase Voltage Monitor, 95 to 120 V AC, 10 A

MFR: Littelfuse

MFR #: 460-100-SP

UPC: 079458990508

Item #: 878271

Littelfuse

No Image Available

TSB422 Timing Relay, 0.5 to 60 s Setting, 120 V AC

MFR: Littelfuse

MFR #: TSB422

UPC: 079458020434

Item #: 887406

Littelfuse

No Image Available

FSU1004 FSU Relay, 10 A

MFR: Littelfuse

MFR #: FSU1004

UPC: 079458993622

Item #: 1260645

Littelfuse

No Image Available

MSM42W6 MSM Relay, 2 s Setting

MFR: Littelfuse

MFR #: MSM42W6

UPC: 079458997095

Item #: 207080

Littelfuse

No Image Available

P1023-20 Bracket, For Use With 2 x 2 or 2 x 3 Timers, DIN Rail Mounting

MFR: Littelfuse

MFR #: P1023-20

UPC: 079458997644

Item #: 1263271

Littelfuse

No Image Available

TDBL120ALD TDB Digital Circuitry Relay, 0.1 to 102.3 s Setting, 120 V AC, 2 Form C DPDT Contact

MFR: Littelfuse

MFR #: TDBL120ALD

UPC: 079458999556

Item #: 942021

Littelfuse

The TDU Series are encapsulated solid-state, delay-on-make timers that combine digital timing circuitry with universal voltage operation. The TDU offers DIP switch adjustment allowing accurate selection of the time delay over the full time delay range. This series is an excellent choice for process control systems and OEM equipment. Operation (Delay-on-Make): Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output.

TDU3000A Digital Integrated Circuitry Timing Relay, 1 to 1023 s Setting, 24 to 120 V AC/DC, 8 Pin, SPST Contact

MFR: Littelfuse

MFR #: TDU3000A

UPC: 079458999976

Item #: 133032

Littelfuse

The 455 Series are 3-phase voltage monitors that combine load and line side monitoring to offer complete protection. Monitoring the load side will alert the user of contactor failure or impending contactor failure. Line side monitoring will also protect the motor from damaging fault conditions that may be present prior to the motor starting. With other line/load side monitors, the motor must be started before a voltage fault is detected. With the 455, your motor is fully protected at all times. The 455 Series are 3-phase, dual range voltage monitors that protect 190-480VAC, 50*/60Hz motors, regardless of their size. It automatically selects between the 200V and 400V range when the user selects the nominal voltage setpoint. Other adjustments include a 2-30 second trip delay, a 2-300 second restart delay (and manual restart) and a voltage unbalance trip point of 2-8%. The voltage monitors circuitry is powered through the line side connections, so there is no need for separate control power, making it easy to install. Equipped with an infrared LED, the 455 Sereies can communicate to the optional hand-held diagnostic tool, Informer-MS to obtain valuable information such as real-time voltage, voltage unbalance on both line and load sides, motor run hours, last 20 faults, last 32 motor starts, high and low voltage trip points, voltage unbalance trip point, restart and trip delay settings, LED status and more.

455 Symcom 3-Phase Dual Range Voltage Monitoring Relay, 190 to 480 V AC, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: 455

UPC: 079458989618

Item #: 1506441

Littelfuse

The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50*/60Hz motors regardless of size from low and high voltage, unbalance/single-phase, and reverse-phase. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The 250A also features adjustable or manual restart delay. This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the Littelfuses output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels. The Model 250A includes advanced single LED diagnostics. Five different light patterns distinguish between faults and normal conditions.

250A Symcom 3-Phase Voltage Monitoring Relay, 190 to 480 V AC, 2 Form C DPDT Contact

MFR: Littelfuse

MFR #: 250A

UPC: 079458990447

Item #: 1564903

Littelfuse

The FA and FS Series Flashers have proven their reliability through years of use on communication towers, smoke stacks, cooling towers, tall buildings, bridges and utility towers. The highest quality components are encapsulated in a rugged plastic housing with a molded-in heat transfer plate. The flash rate, ratio, and failsafe design meet FAA regulations. Zero voltage switching can increase lamp life up to ten times. The FS155-30RF & FS165-30RF include superior RF filtering circuitry for use in high RF installations, including AM hot towers. Operation: FS Series - Flasher (OFF First), FA Series - Flashers & Aux. Modules: Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of T1, T2 begins and the load de-energizes. This cycle repeats until voltage is removed. Reset: Removing input voltage resets the output and the sequence to T2.

FS146 FS100 Low Current Flasher, 1 A, 24 V AC Coil

MFR: Littelfuse

MFR #: FS146

UPC: 079458993417

Item #: 1551385

Littelfuse

The TDM/TDMH/TDML Series is a delay-on-make timer that combines accurate digital circuitry with isolated, DPDT relay contacts in an industry standard 8-pin plug-in package. DIP switch adjustment allows precise selection of the time delay over the full time delay range. The TDM/TDMH/TDML Series is the product of choice for custom control panel and OEM designers. Operation (Delay-on-Make): Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output relay energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output.

TDM120AL Digital Integrated Circuitry Time Delay Relay, 120 V AC, 8 Pin, 2 Form C DPDT Contact, 2 Poles

MFR: Littelfuse

MFR #: TDM120AL

UPC: 079458999624

Item #: 47898

Littelfuse

The PGR-3100 indicates the presence of voltage on each phase of a three-phase system. The LEDs on the panel illuminate when voltage is present. When a ground-fault occurs, the voltage on the faulted phase reduces to ground potential, causing the LEDs for the faulted phase to dim. On a resistance grounded or ungrounded system the LEDs for the unfaulted phases become brighter. Ungrounded ac systems are required by the National Electrical Code (NEC) Article 250.21(B) and the Canadian Electrical Code Part 1, Section 10-106 (2) to have ground detectors, such as the PGR-3100, installed on the system. External potential transformers (PTs) can be used to step down system voltage, allowing the PGR-3100 to be applied to any system voltage. PTs are not required for system voltages up to 600 Vac.

PGR-3100 Powr-Gard Ground Fault Indication System With LEDs, 600 V AC, Panel Mount

MFR: Littelfuse

MFR #: PGR-3100

UPC: 079458177312

Item #: 952482

Littelfuse

The TMV and TSU Series are universal voltage delay-on-make timers. Two models cover all the popular voltages and time delays. Available with knob or external adjust time delay. Its simple two terminals can easily be connected in series with a relay coil, contactor coil, solenoid, lamps, small motor, etc., to delay their energization, prevent short cycling or to sequence on various loads. Operation (Delay-on-Make):Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output.

TMV8000 Adjustable Onboard Time Delay Relay, 0.1 to 8 min Setting, 24 to 240 V AC/DC, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: TMV8000

UPC: 079458010794

Item #: 496304

Littelfuse

Panel-mounted analog am meter displays the Ground-Fault Current as a percentage of the set-point.

PGA-0500 Panel Mount Analog Percent Current Meter

MFR: Littelfuse

MFR #: PGA-0500

UPC: 079458178173

Item #: 1022868

Littelfuse

The SE-330 is an advanced ground-fault and neutral-groundingresistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.

SE-330-03-01 Continuous Universal Neutral Grounding Resistor Monitor Relay, 120 V AC/240 V DC, 4 to 20 mA Analog Output, 1 Form A, 1 Form B, 2 Form C Output Contact

MFR: Littelfuse

MFR #: SE-330-03-01

UPC: 079458988420

Item #: 1502618

Littelfuse

The PHS Series is an ideal method of changing lamp intensity, varying the speed of a fan/motor, or controlling the temperature of a heater. The effective output voltage is adjusted with an accessory external potentiometer suitable for line voltage applications. Operation: Upon application of input voltage, effective output voltage can be varied by changing the external resistance value. As the external resistance increases, the effective output voltage decreases. The inverse is also true.

PHS230A20 Phase Control Relay, 20 A, 1NO 1 Form A SPST Contact

MFR: Littelfuse

MFR #: PHS230A20

UPC: 079458997859

Item #: 200571

Littelfuse

The TRU Series is a multifunction, knob adjustable, Universal Time Delay Relay. It includes six of the most popular timing functions selected by a slide switch. The time delay is knob adjustable and the time delay range is switch selectable. The repeat accuracy is + 0.1%. Both function and time range can be selected on the top face of the unit. In addition to multifunctioning and multiple time ranges, the TRU Series features universal input voltage; 19 to 264VAC and 19 to 30VDC and full 10A output relay. The TRU Series can directly replace up to 1000 competitive time delay relay models. Operation: A six position slide switch selects delay-on-make, interval, single shot, recycling (ON time first, equal recycle delays), delay-on-break, and retriggerable single shot. 8-pin DPDT base wiring is limited to delay-on-make, interval, and recyclingfunctions. All six functions are available in the 8-pin SPDT and 11-pin DPDT versions.

TRU2 Adjustable Digital Integrated Circuitry Universal Time Delay Relay, 19 to 264 V AC/19 to 30 V DC, 8 Pin, 1 Form C SPDT Contact, 1 Pole

MFR: Littelfuse

MFR #: TRU2

UPC: 079458012156

Item #: 98301

Littelfuse

The ISS-105 is a smart five-channel intrinsically safe relay and pump controller. The ISS-105 can be configured for a wide variety of applications including alternating or non-alternating duplex, duplex separate pump stop (SPS), triplex and quadplex applications. It can be set up for pump-up or pump-down applications or can be used as a five-channel relay. The ISS-105 has a long list of features that are needed for multiple pump applications. The ISS-105 can indicate low, high and out-of-sequence alarms. If an out-of-sequence alarm occurs, the skipped pump(s) will be started as intended. The Model ISS-105 can be set up to do non-alternating control, alternating control and alternating control with one non-alternating pump. The non-alternating pump is intended for use with an emergency or jockey pump. The ISS-105 can start an emergency pump once every 50 cycles to keep it working freely. Using the built-in DIP switches, individual pumps can be disabled when taken out of service for repair or maintenance.

ISS-105 Symcom PumpSaver 5-Channel Intrinsically Safe Switch/Pump Controller

MFR: Littelfuse

MFR #: ISS-105

UPC: 079458994315

Item #: 1569571

Littelfuse

The SE-330 is an advanced ground-fault and neutral-groundingresistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.

SE-330-03-00 Continuous Universal Neutral Grounding Resistor Monitor Relay, 120 V AC/240 V DC, 4 to 20 mA Analog Output, 2 Form A, 2 Form C Output Contact

MFR: Littelfuse

MFR #: SE-330-03-00

UPC: 079458988413

Item #: 1445479

Littelfuse

The PC-102 series is a dual-channel switch that provides dual protection against seal failures and over-temperature in submersible pumping applications. The relays have two form-C isolated output relays and two LEDs, which illuminate when each associated output relay is energized. The sensitivity adjustment (4.7k-100kOhms) allows you to define the input impedance at which the output relays will change state. The sensitivity for the over-temperature detector can be set to 4k Ohms with use of the DIP switches.

PC-102CICI-LT 2 Form C Dual Seal Leak and Over Temperature Detector, 120 V AC, 2.08 in W x 2.35 in D

MFR: Littelfuse

MFR #: PC-102CICI-LT

UPC: 079458997699

Item #: 595113

Littelfuse

No Image Available

355-400 Symcom 3-Phase Voltage Monitoring Relay, 475 to 600 V AC, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: 355-400

UPC: 079458989816

Item #: 177013

Littelfuse

Operates on AC ungrounded systems. The EL3100 is a self-powered ground-fault and phase voltage indication system for 3-phase systems. The EL3100 meets the National Electrical Code (NEC, Article 250.21(B)) and the Canadian Electrical Code (CEC) requirements for ground detectors for ungrounded alternating-current systems. Voltage connections are provided on the EL3100 for 208, 240, 480, and 600-V systems. Three green LEDs on the EL3100 indicate the presence of phase-to-ground voltage and one red LED indicates a ground fault. The EL3100 can operate stand-alone or with up to five remote LED indicators. A solid-state relay output provides indication of a ground fault. The output relay is closed when the 3-phase neutral voltage shifts as the result of ground leakage.

EL3100-00 Self-Powered Ground-Fault/Phase-Voltage Indicator, 208/240/480/600 V AC, DIN Rail Mount

MFR: Littelfuse

MFR #: EL3100-00

UPC: 079458825527

Item #: 738995

Littelfuse

The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically senses line voltage. This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions such as low, high, and unbalanced voltage, loss of any phase, and phase reversal. When a harmful condition is detected, the 460 output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions. All 460 models feature adjustable 1-30 second trip delay, 1-500 second restart delay, 2-8% voltage unbalance trip point, and one form C contact except where noted.

460-15 Symcom MotorSaver 3-Phase Voltage Monitoring Relay, 190 to 480 V AC, 1NO 1 Form A SPST Contact

MFR: Littelfuse

MFR #: 460-15

UPC: 079458990522

Item #: 465110

Littelfuse

No Image Available

RK-310R-01 Ground-Fault Status Remote LED Label, Red Indication, For Use With EL3100 Series Self-Powered Ground-Fault and Phase-Voltage Indication System

MFR: Littelfuse

MFR #: RK-310R-01

UPC: 079458825510

Item #: 1499413

Littelfuse

The SE-CS30 series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.

SE-CS30-8 Ground Fault Current Transformer With Flux Conditioner, 200 mm, 600:1, 600 V AC Insulation Level, 3% at 0.06 VA Accuracy, 50 to 400 Hz, -67 to 140 deg F Temperature, Screw Mount

MFR: Littelfuse

MFR #: SE-CS30-8

UPC: 079458989267

Item #: 1475951

Littelfuse

The FA and FS Series Flashers have proven their reliability through years of use on communication towers, smoke stacks, cooling towers, tall buildings, bridges and utility towers. The highest quality components are encapsulated in a rugged plastic housing with a molded-in heat transfer plate. The flash rate, ratio, and failsafe design meet FAA regulations. Zero voltage switching can increase lamp life up to ten times. The FS155-30RF & FS165-30RF include superior RF filtering circuitry for use in high RF installations, including AM hot towers. Operation: FS Series - Flasher (OFF First), FA Series - Flashers & Aux. Modules: Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of T1, T2 begins and the load de-energizes. This cycle repeats until voltage is removed. Reset: Removing input voltage resets the output and the sequence to T2.

FS127 FS100 Low Current Flasher, 2 A, 120 V AC Coil

MFR: Littelfuse

MFR #: FS127

UPC: 079458993394

Item #: 1482444

Littelfuse

No Image Available

ELCT30-31 ELCT Sensitive Transformer, 600:1 Current Ratio, 600 V, 50 to 400 Hz

MFR: Littelfuse

MFR #: ELCT30-31

UPC: 079458232684

Item #: 1204731

Littelfuse

No Image Available

AF0500-00 AF0500 Protection Arc Flash Relay, 750 mA, NO-NC Contact

MFR: Littelfuse

MFR #: AF0500-00

UPC: 079458845310

Item #: 1069006

Littelfuse

No Image Available

50R200 1-Phase Monitor, 190 to 240 V AC, 10 A, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: 50R200

UPC: 079458990706

Item #: 1407332

Littelfuse

No Image Available

LLC54AA LLC5 Dual-Probe Level Control, 120 V AC, 2.39 in W x 1.78 in D

MFR: Littelfuse

MFR #: LLC54AA

UPC: 079458996357

Item #: 1553524

Littelfuse

No Image Available

LLC52BA LLC5 Dual-Probe Level Control, 24 V AC, 2.39 in W x 1.78 in D

MFR: Littelfuse

MFR #: LLC52BA

UPC: 079458996340

Item #: 1475434

Littelfuse

3PH VM/380-480V/adj.RD/DPDT 480V Relay. The 350 is a heavy-duty voltage monitor. This product should be used when high current relays or dual contacts are required, or 480V controls are used. Since the 350 uses heavy-duty relays, it comes in fixed voltage range models rather than a dual autoranging version like the Model 250. The 350-200 has a 15A general purpose contact. The 350-400 provides a SPDT (Form C) relay rated to switch up to 600V, allowing the use of 480V controls, eliminating the need for a control power transformer to step the voltage down to 120-240V. Several DPDT (two Form C contacts) relay models are also available. The 350 microcontroller-based family of products are low cost yet highly advanced solutions to heavy-duty problems. The 350 includes advanced single LED diagnostics. Five different light patterns distinguish faults and normal operating conditions. Other options such as high voltage trip and adjustable restart delay are available.

350-400-2-5 Symcom 3-Phase Fixed Trip Heavy Duty Variable Restart Delay Voltage Monitoring Relay, 380 to 480 V AC, DPDT Contact

MFR: Littelfuse

MFR #: 350-400-2-5

UPC: 079458989953

Item #: 1521030

Littelfuse

The 201A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The 201A includes advanced single LED diagnostics, where color and different light patterns distinguish between faults and normal conditions.This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the 201As output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels.

201A-9 Symcom MotorSaver 3-Phase Auto Ranging Dual Range Voltage Monitoring Relay, 190 to 480 V AC, 8 Pin, 1 Form C SPDT Contact

MFR: Littelfuse

MFR #: 201A-9

UPC: 079458990225

Item #: 433950

Littelfuse

The 460-15-100-SLD is a seal-leak detector to sense seal failures on submersible pumps. A microcontroller-based relay monitors the shaft seal of a submersible pump motor. A resistive probe is installed in the seal cavity. If water leaks into the pump, the resistance measured by the probe decreases. When the resistance drops below the sensitivity setpoint, the unit will trip and the relay contacts will change state. Output relay logic can be reversed by removing an external jumper. The unit will automatically reset when a fault is cleared.

460-15-100-SLD 1-Channel Seal Leak Detector, 110 to 120 V AC, LED Indicator

MFR: Littelfuse

MFR #: 460-15-100-SLD

UPC: 079458990546

Item #: 819808

Littelfuse

The SE-100T is a ground-fault-relay test unit designed to test the current pickup level of ground-fault protection. The tester injects current through the window of installed ground-fault current transformers to verify the operation of ground-fault monitors and relays. It is used on substations, motor control centers (MCCs), central distribution panels, switchboards, and test benches to verify relay operation. The SE-100T tests the entire ground-fault circuit including current transformers, wiring, ground-fault relay and the operation of the interrupting device. It is recommended to test every relay and its current interrupting device annually.

SE-100T Ground Fault Relay Tester, 120 V AC, 6.3 V AC Output Voltage, Surface Mount

MFR: Littelfuse

MFR #: SE-100T

UPC: 079458987867

Item #: 1566844

Littelfuse

The LSR-XXX load sensors use current levels to determine feed rates, tool wear, loss of prime on pumps, mixer viscosity and all types of overload and underload conditions. They may also be used to stage pump motors, chillers and other machinery. These devices combine a current transformer (CT) with Form C (SPDT) relay contacts to switch alarm circuits, contactors or any resistive or inductive load. One simple screwdriver adjustment will calibrate the sensor for all single-phase or 3-phase applications up to 100hp.

LSR-115 Symcom Load Sensor Relay, 115 VAC, 1 Form C SPDT

MFR: Littelfuse

MFR #: LSR-115

UPC: 079458996661

Item #: 543443