ISS 105 Series - Five-Channel Intrinsically Safe Switch

Series: ISS 105
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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.

Product Literature

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Call +1 800-832-3873 or email us at relays@littelfuse.com 

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Catalog #Input
Voltage (V)		Termination TypeMounting MethodDimensionsWeight (lbs/g)Debounce Time Delay (s)HumidityInput AC Line Frequency (Hz)Input LogicInput Tolerance (%)Intrinsically Safe Circuit LocationMaximum Input PowerOutput Load Rating (VA)Protection ClassSense VoltageStockSamplesCompare
ISS-105120 VacTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 H x 3.7 W x 5.03 D in. (59.7 x 94.1 x 127.6 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)±10%Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III5Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 VacIP20 (finger safe)5 Vdc continuous (probe)CheckOrder
ISS-105-ISO120 VacTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 H x 3.7 W x 5.03 D in. (59.7 x 94.1 x 127.6 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)Input/Output Channels: 5 channels±10%Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III5Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 VacIP20 (finger safe)5 Vdc continuous (probe)CheckOrder
ISS-105-ISO-3120 VacTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 H x 3.7 W x 5.03 D in. (59.7 x 94.1 x 127.6 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)Input/Output Channels: 3 channels±10%Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III5Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 VacIP20 (finger safe)5 Vdc continuous (probe)CheckOrder
ISS-105-ISO-4120 VacTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 H x 3.7 W x 5.03 D in. (59.7 x 94.1 x 127.6 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)Input/Output Channels: 4 channels±10%Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III5Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 VacIP20 (finger safe)5 Vdc continuous (probe)CheckOrder
ISS-105-ISO-F120 VacTorque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG35mm DIN rail or Surface Mount (#6 or #8 screws)2.35 H x 3.7 W x 5.03 D in. (59.7 x 94.1 x 127.6 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)Input/Output Channels: 5 channels faster response time (≤75 s)±10%Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III5Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 VacIP20 (finger safe)5 Vdc continuous (probe)CheckOrder
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