ISS-105-ISO-4 - ISS-105 Series

Series: ISS-105 Questions? Contact Littelfuse Support
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.

Property (Mouseover for details) Value
Input Voltage (V) 120VAC
Input Tolerance (%) ±10%
Maximum Input Power 5W
Input AC Line Frequency (Hz) 50/60Hz (50Hz will increase all delay timers by 20%.)
Input Logic Input/Output Channels: 4 channels
Output Load Rating (VA) Pilot Duty: 480VA @ 240VAC B300; General Purpose: 7A @ 240VAC
Debounce Time Delay (s) 2s
Sense Voltage 5vdc continuous (probe)
Intrinsically Safe Circuit Location Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III
Protection Class IP20 (finger safe)
Life Electrical: 100 000 cycles min. @ rated load; Mechanical: 10 000 000 cycles
Termination Type Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12-20AWG
Mounting Method 35mm DIN rail or Surface Mount (#6 or #8 screws)
Operating Temperature -40° to 55°C (-40° to 131°F)
Humidity 10-95% non-condensing per IEC 68-2-3
Dimensions 2.35 in H x 3.70 in W x 5.03 in L (59.7 x 94.1 x 127.6 mm)
Weight (lbs/g) 1.2 lbs. (19.2 oz. 544.31 g)