ISS-105 Series - Five-Channel Intrinsically Safe Switch

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.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Termination TypeMounting MethodDimensionsWeight (lbs/g)SamplesCompare
ISS-105120VACTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)1.2 lbs. (19.2 oz. 544.31 g)
ISS-105-ISO120VACTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)1.2 lbs. (19.2 oz. 544.31 g)
ISS-105-ISO-3120VACTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)1.2 lbs. (19.2 oz. 544.31 g)Order
ISS-105-ISO-4120VACTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)1.2 lbs. (19.2 oz. 544.31 g)
ISS-105-ISO-F120VACTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)1.2 lbs. (19.2 oz. 544.31 g)