Electrical Relays and Accessories

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The ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The ALT-S is used in single high-level float applications. When the float switch opens, the alternating relay changes state, forcing the other pump to run the next time the float closes. All ALT relays have a built-in debounce feature that prevents the relay from changing state if the switch or float contact bounces momentarily. The ALT-X has an internal cross-connected relay and is used in dual high-level float applications. These floats are commonly referred to as lead and lag floats. The pumps alternate as in the ALT-S version but the crossconnected relay configuration allows both pumps to run simultaneously when both the lead and lag floats are closed. These relays are also available with a built-in switch (SW option) that is used to manually force one of the pumps to run every time the float switch is closed. This is helpful when a pump has been removed for repair or for test purposes. In the case of the ALT-X-SW, the switch essentially forces one pump to be the lead pump, while still allowing the second to run when both floats are closed. Must use the OT08PC socket for UL Rating!

Littelfuse

ALT-115-S-SW Symcom Alternating Relay/ 95-125V/ 8-

MFR: Littelfuse

MFR #: ALT-115-S-SW

UPC: 079458991314

Item #: 1382862

Available to Order

Availability

Location	Available Qty

No Image Available

Littelfuse

Solid State Timer

MFR: Littelfuse

MFR #: KSDB314SP

UPC: 079458995565

Item #: 150727

In Stock - Check Availability

$243.03 each

Availability

Location	Available Qty

No Image Available

Littelfuse

Ground Fault Ground-Check Monitor

MFR: Littelfuse

MFR #: SE-105

UPC: 079458188233

Item #: 454484

Available to Order

$5843.90 each

Availability

Location	Available Qty

No Image Available

Littelfuse

Gf/Gc Term Assembly 5.6V 50W Tc

MFR: Littelfuse

MFR #: SE-TA6A

UPC: 079458989540

Item #: 531235

Available to Order

$2046.95 each

Availability

Location	Available Qty

Used On Systems Up To 1 kV.

Littelfuse

ER-600VC ER-600VC Series Res Sensing 20K 1000V L-L

MFR: Littelfuse

MFR #: ER-600VC

UPC: 079458977950

Item #: 450698

Available to Order

$1765.08 each

Availability

Location	Available Qty

Overload relay 50...200 a for motor protection size s6, class 10 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset

Siemens

Overload relay 50...200 a for motor protection size s6, class 10 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset

MFR: Siemens

MFR #: 3RB2056-1FW2

UPC: 040892624403

Item #: 252557

Available to Order

$876.86 each

Availability

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Plug-in Relay, Premium LED, Mechanical Flag 5-pin Square Base SPDT, 15A, 24VAC Uses Socket 3TX7144-4E7

Siemens

Plug-in Relay, Premium LED, Mechanical Flag 5-pin Square Base SPDT, 15A, 24VAC Uses Socket 3TX7144-4E7

MFR: Siemens

MFR #: 3TX7110-5JC13

UPC: 754554759838

Item #: 791427

Available to Order

$42.84 each

Availability

Location	Available Qty

Contactor 3TG1010-0bb4-screw terminals 4NO 24VDC

Siemens

Contactor 3TG1010-0bb4-screw terminals 4NO 24VDC

MFR: Siemens

MFR #: 3TG1010-0BB4

UPC: 754554404639

Item #: 615052

Available to Order

$293.94 each

Availability

Location	Available Qty

TIME RELAY, MULTI-FUNCTION, 1 CO CONT., 13 FUNCTIONS, 15 TIME SET. RANGES, (1, 3, 10, 30, 100), (S/MIN/HR), 12... 240 V AC/DC AT AC 50/60HZ, LED, SPRING-LOADEDTERM. (PUSH-IN)

Siemens

TIME RELAY, MULTI-FUNCTION, 1 CO CONT., 13 FUNCTIONS, 15 TIME SET. RANGES, (1, 3, 10, 30, 100), (S/MIN/HR), 12... 240 V AC/DC AT AC 50/60HZ, LED, SPRING-LOADEDTERM. (PUSH-IN)

MFR: Siemens

MFR #: 3RP25052AW30

UPC: 887621914868

Item #: 1267570

Available to Order

$307.44 each

Availability

Location	Available Qty

TIME RELAY, MULTI-FUNCTION, 2 CO CONTACTS, 27 FUNCTIONS, 15 TIME SETTING RANGE(1,3,10, 30, 100) (S, MIN, HR), AC/DC 12... 240V, AT AC 50/60HZ, LED, SCREW TERMINAL

Siemens

TIME RELAY, MULTI-FUNCTION, 2 CO CONTACTS, 27 FUNCTIONS, 15 TIME SETTING RANGE(1,3,10, 30, 100) (S, MIN, HR), AC/DC 12... 240V, AT AC 50/60HZ, LED, SCREW TERMINAL

MFR: Siemens

MFR #: 3RP25051BW30

UPC: 887621914844

Item #: 908628

Available to Order

$380.41 each

Availability

Location	Available Qty

Time rel., multi-function, 1 co contact, 13 functions, 15 time set. ranges, (1,3, 10, 30, 100), (s/min/hr), 12...240V AC/DC at AC 50/60HZ, led, screw terminal

Siemens

Time rel., multi-function, 1 co contact, 13 functions, 15 time set. ranges, (1,3, 10, 30, 100), (s/min/hr), 12...240V AC/DC at AC 50/60HZ, led, screw terminal

MFR: Siemens

MFR #: 3RP25051AW30

UPC: 887621914813

Item #: 945461

Available to Order

$307.44 each

Availability

Location	Available Qty

Plug-in relay, premium led, mechanical flag 8-pin octal base dpdt, 10a, 120VAC uses socket 3TX7144-1e2 or 3TX7144-4e2

Siemens

Plug-in relay, premium led, mechanical flag 8-pin octal base dpdt, 10a, 120VAC uses socket 3TX7144-1e2 or 3TX7144-4e2

MFR: Siemens

MFR #: 3TX7112-1LF13

UPC: 754554759722

Item #: 228177

Available to Order

$75.96 each

Availability

Location	Available Qty

Overload relay 50...200 a for motor protection size s6, class 20 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset

Siemens

Overload relay 50...200 a for motor protection size s6, class 20 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset

MFR: Siemens

MFR #: 3RB2056-2FW2

UPC: 040892624441

Item #: 723160

Available to Order

$953.42 each

Availability

Location	Available Qty

OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S0, CLASS 10 FOR MOUNTING ONTO CONT. MAIN CIRCUIT SCREW CONNECTION AUX. CIRCUIT SCREW CONNECTION MANUAL-AUTOMATIC-RESET

Siemens

OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S0, CLASS 10 FOR MOUNTING ONTO CONT. MAIN CIRCUIT SCREW CONNECTION AUX. CIRCUIT SCREW CONNECTION MANUAL-AUTOMATIC-RESET

MFR: Siemens

MFR #: 3RB2026-1QB0

UPC: 040892575682

Item #: 357377

Available to Order

Availability

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Esp200 catalog no 48ate3s00 solid state overload relay for motor protection 10 to 40 amp size a1 3 phase class 5...30, switchable direct mounting and stand-alone main circuit windows auxiliary circuit scrw terminal manual automatic reset

Siemens

Esp200 catalog no 48ate3s00 solid state overload relay for motor protection 10 to 40 amp size a1 3 phase class 5...30, switchable direct mounting and stand-alone main circuit windows auxiliary circuit scrw terminal manual automatic reset

MFR: Siemens

MFR #: 3UB81234EW2

UPC: 662643897227

Item #: 235519

Available to Order

$519.51 each

Availability

Location	Available Qty

No Image Available

Siemens

Esp200 catalog no 958gb3sa solid state overload relay for motor protection 25 to 100 amp size b 3 phase class 958, trip curve a direct mounting and stand-alonemain circuit windows auxiliary circuit scrw terminal manual automatic reset

MFR: Siemens

MFR #: 3UB85335GW2

UPC: 662643897319

Item #: 582224

Available to Order

$1187.91 each

Availability

Location	Available Qty

Esp200 catalog no 48atb3s00 solid state overload relay for motor protection 0.75 to 3.4 amp size a 3 phase class 5...30, switchable direct mounting and stand-alone main circuit screw terminals auxiliary circuit scrw terminal manual automatic reset

Siemens

Esp200 catalog no 48atb3s00 solid state overload relay for motor protection 0.75 to 3.4 amp size a 3 phase class 5...30, switchable direct mounting and stand-alone main circuit screw terminals auxiliary circuit scrw terminal manual automatic reset

MFR: Siemens

MFR #: 3UB81134BB2

UPC: 662643897197

Item #: 185130

Available to Order

$519.51 each

Availability

Location	Available Qty

Overload relay 27...32 a for motor protection sz s0, class 10, f. mounting ontocontactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset

Siemens

Overload relay 27...32 a for motor protection sz s0, class 10, f. mounting ontocontactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset

MFR: Siemens

MFR #: 3RU21264EB0

UPC: 662643919370

Item #: 758640

Available to Order

$263.18 each

Availability

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Overload relay 5.5...8.0 a for motor protection sz s00, class 10, f. mounting onto contactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset

Siemens

Overload relay 5.5...8.0 a for motor protection sz s00, class 10, f. mounting onto contactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset

MFR: Siemens

MFR #: 3RU21161HB0

UPC: 662643920444

Item #: 723885

Available to Order

$159.10 each

Availability

Location	Available Qty

50-W ground-check termination assembly with convenient mounting holes and screw terminals.

Littelfuse

SE-TA12A Relay Series Termination Assembly - 12V

MFR: Littelfuse

MFR #: SE-TA12A

UPC: 079458989489

Item #: 482948

Available to Order

$2046.95 each

Availability

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

Littelfuse

PMA-8 PMA Series Enc Panel Adaptor Se-134/Atkinson

MFR: Littelfuse

MFR #: PMA-8

UPC: 079458978421

Item #: 1008517

Available to Order

$1775.48 each

Availability

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The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.

Littelfuse

SE-325 SE 325 Series Neutral-Grounding-Resistor Monitor

MFR: Littelfuse

MFR #: SE-325

UPC: 079458988079

Item #: 1280879

Available to Order

$6309.38 each

Availability

Location	Available Qty

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

Littelfuse

RK-332 RK 332 Series Remote Indication And Reset Assembly

MFR: Littelfuse

MFR #: RK-332

UPC: 079458987836

Item #: 1204732

Available to Order

$1842.23 each

Availability

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

Littelfuse

EFCT-1 Relay Series Xfmr Current 100 1 Ef 3.25In Id

MFR: Littelfuse

MFR #: EFCT-1

UPC: 079458977684

Item #: 534791

Available to Order

$2864.50 each

Availability

Location	Available Qty

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.

Littelfuse

SE-330-SMA SE 330 Series Se-330 Surface-Mount Adaptor

MFR: Littelfuse

MFR #: SE-330-SMA

UPC: 079458988604

Item #: 1204733

Available to Order

$1321.00 each

Availability

Location	Available Qty

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

Littelfuse

EFCT-26 Relay Series Xfmr Current 100:1 Ef 26Mm Id

MFR: Littelfuse

MFR #: EFCT-26

UPC: 079458977721

Item #: 866232

Available to Order

$1793.60 each

Availability

Location	Available Qty

50-W ground-check termination assembly with convenient mounting holes and wire leads.

Littelfuse

SE-TA6A-WL Relay Series Gf/Gc Term Assy 5.6V 50W Tc Wl

MFR: Littelfuse

MFR #: SE-TA6A-WL

UPC: 079458989557

Item #: 656337

Available to Order

$2349.20 each

Availability

Location	Available Qty

Used On Systems Up To 15 kV.

Littelfuse

ER-15KV ER-15KV Series Res Sensing 100K 15000V L-L

MFR: Littelfuse

MFR #: ER-15KV

UPC: 079458977905

Item #: 501382

Available to Order

$10080.30 each

Availability

Location	Available Qty

MOTOR OVERLOAD PROTECTION 8000

Littelfuse

MP8000 MP8000 Series Motor Overload Protection 8000

MFR: Littelfuse

MFR #: MP8000

UPC: 079458046113

Item #: 719830

Available to Order

$2952.45 each

Availability

Location	Available Qty

No Image Available

Littelfuse

ECSL41AD SSAC Current Sensor

MFR: Littelfuse

MFR #: ECSL41AD

UPC: 079458992724

Item #: 1238971

Available to Order

$627.83 each

Availability

Location	Available Qty

No Image Available

Littelfuse

SE-330-07-00 SE 330 Series Ngr Mon.,Univ.,Sc Fiber & Rj45,61850

MFR: Littelfuse

MFR #: SE-330-07-00

UPC: 079458812848

Item #: 1528349

In Stock - Check Availability

$25296.25 each

Availability

Location	Available Qty

No Image Available

Littelfuse

SE-330-04-00 SE 330 Series Ngr Mon.,Univ., Ethernet Sc Fiber & Rj45

MFR: Littelfuse

MFR #: SE-330-04-00

UPC: 079458812473

Item #: 1526332

Available to Order

$23538.35 each

Availability

Location	Available Qty

No Image Available

Littelfuse

601 Relay Series 3-Phase Voltage Monitor W/ Dis

MFR: Littelfuse

MFR #: 601

UPC: 079458989632

Item #: 1543863

Available to Order

$1635.70 each

Availability

Location	Available Qty

No Image Available

Littelfuse

NDS-8 Relay Series Pin 8-Pin Socket

MFR: Littelfuse

MFR #: NDS-8

UPC: 079458997132

Item #: 746926

Available to Order

$30.98 each

Availability

Location	Available Qty

No Image Available

Littelfuse

460-B Symcom 3-Phase Volt Mon/ 190-480V/Ad

MFR: Littelfuse

MFR #: 460-B

UPC: 079458990591

Item #: 1359341

Available to Order

$493.30 each

Availability

Location	Available Qty

No Image Available

Littelfuse

OT08PC SSAC Socket, 8 Pin Octal

MFR: Littelfuse

MFR #: OT08PC

UPC: 079458997422

Item #: 162871

Available to Order

$49.25 each

Availability

Location	Available Qty

No Image Available

Littelfuse

KRDM215M SSAC 2X2 D.O.M. W/Relay

MFR: Littelfuse

MFR #: KRDM215M

UPC: 079458994773

Item #: 1489833

Available to Order

$278.45 each

Availability

Location	Available Qty

No Image Available

Littelfuse

460-100-SP Symcom 1-Phase Voltage Monitor/ 115V/

MFR: Littelfuse

MFR #: 460-100-SP

UPC: 079458990508

Item #: 878271

Available to Order

$503.23 each

Availability

Location	Available Qty

No Image Available

Littelfuse

102A3 Symcom 3-Phase Voltage Monitor/ 190-4

MFR: Littelfuse

MFR #: 102A3

UPC: 079458990058

Item #: 24880

Available to Order

$773.13 each

Availability

Location	Available Qty

No Image Available

Littelfuse

TSB422 SSAC Delay On Break Timer

MFR: Littelfuse

MFR #: TSB422

UPC: 079458020434

Item #: 887406

Available to Order

$254.13 each

Availability

Location	Available Qty

No Image Available

Littelfuse

FSU1004 SSAC Universal Adjustable Flasher

MFR: Littelfuse

MFR #: FSU1004

UPC: 079458993622

Item #: 1260645

Available to Order

$406.55 each

Availability

Location	Available Qty

No Image Available

Littelfuse

MSM42W6 SSAC Solid State Timer (D.O.M.)

MFR: Littelfuse

MFR #: MSM42W6

UPC: 079458997095

Item #: 207080

Available to Order

$194.35 each

Availability

Location	Available Qty

No Image Available

Littelfuse

P1023-20 Relay Series Track For Din Rail

MFR: Littelfuse

MFR #: P1023-20

UPC: 079458997644

Item #: 1263271

Available to Order

$40.60 each

Availability

Location	Available Qty

No Image Available

Littelfuse

NDS-11 Relay Series Din 11-Pin Socket

MFR: Littelfuse

MFR #: NDS-11

UPC: 079458997125

Item #: 602774

Available to Order

$53.75 each

Availability

Location	Available Qty

No Image Available

Littelfuse

T10400 SSAC On-Delay Timer/ 460V/ Adjustab

MFR: Littelfuse

MFR #: T10400

UPC: 079458999105

Item #: 1567495

Available to Order

$707.05 each

Availability

Location	Available Qty

No Image Available

Littelfuse

HRDR431A1R SSAC Recycling Timer

MFR: Littelfuse

MFR #: HRDR431A1R

UPC: 079458993974

Item #: 983952

Available to Order

$373.83 each

Availability

Location	Available Qty

No Image Available

Littelfuse

TDBL120ALD SSAC Digi-Set (D.O.B.)

MFR: Littelfuse

MFR #: TDBL120ALD

UPC: 079458999556

Item #: 942021

Available to Order

$598.68 each

Availability

Location	Available Qty

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.

Littelfuse

TDU3000A SSAC Solid State Timer

MFR: Littelfuse

MFR #: TDU3000A

UPC: 079458999976

Item #: 133032

Available to Order

$205.20 each

Availability

Location	Available Qty