These industrial heavy duty limit switches are applied in almost any environments. The lever head switches have the largest diameter shaft in the industry. They also have a Viton Quadring shaft seal to ensure positive head and shaft sealing that is dust and watertight. This standard differential lever head limit switch has a standard body and receptacle which is good for most applications. Limit switch has one normally open and one normally closed contact. The snap action contacts will change state when the lever arm in operated in the clockwise or counterclockwise direction. Contacts have an A600 and Q600 inductive ratings and 10A resistive rating. This standard differential rotary arm head has a differential of 4 degrees of travel. The proper lever arm for the application must be purchased separately. This limit switch is 4.02 inches tall, 1.55 inches wide and 2.50 inches deep. This limit switch is NEMA 1, 2 4, 6, 6P, 12 and 13 rated. It is also rated IP67. Switch has a 0.50 inch conduit entry with 14 NPT. Limit switch has been prewired with a 4 pin Brad Harrison connector and is potted inside. Limit switch has an isolated neon pilot light. Limit switch is UL listed and CSA certified.