Protection Relays Intrinsically Safe Relays ISS-105 SERIES Five-Channel Intrinsically Safe Switch Description The ISS-105 is a smart five-channel intrinsically safe relay and pump controller. The ISS-105 can be configured for pump-up or pump-down applications or as a five-channel relay covering a wide variety of applications. The ISS-105 has a long list of features that are needed for multiple pump applications and 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. Features & Benefits Wiring Diagram JJ 5 intrinsically-safe input channels meeting UL913 Sixth Edition Typical Application: TYPICAL APPLICATION: JJ 4 normally open output relays and 1 SPDT output relay Audible Alarm Duplex Pump-Down with High and Low AlarmsDuplex Pump Down with High and Low Alarms. High JJ Alarm Field selectable pump control options JJ Monitors float sequencing and sends signal to alarm if Low Alarm out-of-sequence condition occurs 120 VAC JJ High and/or low alarm options depending on the number of Pump Pump 1 2 pumps and settings JJ Output contacts for audible alarm High Alarm Float JJ Meets IEC EMC standards for Electrical Fast Transients (EFT), 1 2 3 4 5 INPUT Electrostatic Discharge (ESD) and Radio Frequency Immunity (RFI) Lag 1 Float 120 VAC JJ PUMP PUMP LOW HIGH AUDIBLE MODE 1 DIN rail or surface mountable allows flexibility in 1 2 ALARM ALARM ALARM DUPLEXER PUMP DOWN Lead Float IS Super Cell panel installation MODEL ISS-105 LOW HIGH ALARM OFF LEAD LAG1 ALARM COMMON JJ INTRINSICALLY Stop Float User-selectable alternator/non-alternator option SAFE INPUTS 1 2 3 4 5 C JJ Non-alternating pump option for emergency or Low Alarm Float jockey applications JJ Pump disable switches make it easy to disable individual pumps when they are out for service or repair Many other configurations are possible. See users manual for more details. PUMP JJ Adjustable lag pump delay for all pumping modes JJ Adjustable delay-on-make/break timer in five-channel relay mode JJ Finger-safe terminals meet IEC 61000 safety requirements Ordering Information MODEL LINE VOLTAGE DESCRIPTION ISS-105 120VAC Intrinsically-Safe & Pump Controller ISS-105-ISO 120VAC Intrinsically-Safe Only ISS-105-ISO-3 120VAC 3-Channel Intrinsically-Safe Only ISS-105-ISO-4 120VAC 4-Channel Intrinsically-Safe Only ISS-105-ISO-F 120VAC ISO with Fast Trip Relays 2017 Littelfuse Protection Relays & Controls Rev: 1-B-050517 wwwwww.littelfuse.com/.littelfuse.com/iss105Protection Relays Intrinsically Safe Relays ISS-105 Standards Passed Specifications Electrostatic Discharge (ESD) IEC 61000-4-2, Level 3, 6kV contact, 8kV air. Input Characteristics Radio Frequency Immunity (RFI) IEC 61000-4-3, Level 3, 10V/m Supply Voltage 120VAC Fast Transients IEC 61000-4-4, Level 3, 4kV input power Frequency 50*/60Hz 2kV inputs/outputs Functional Characteristics Safety Marks Probe Sense Voltage 5vdc continuous UL UL913 Sixth Edition (File E233355) Output Characteristics Dimensions H 94.06 mm (3.703) W 127.64 mm (5.025) Relay Output Rating D 59.69 mm (2.350) Pilot Duty 480VA 240VAC, B300 Weight 1.2 lbs. (19.2 oz., 544.31 g) General Purpose 7A 240VAC Mounting Method 35 mm DIN rail or Surface Mount Relay Contact Life (Electrical) 100,000 cycles min. rated load ( 6 or 8 screws) Relay Contact Life (Mechanical) 10,000,000 cycles General Characteristics Temperature Range -40 to 55C (-40 to 131F) *Note: 50Hz will increase all delay timers by 20%. Maximum Input Power 5 W Wire range 12 to 20 AWG Recommended Terminal Torque 3.5 to 4.5 in.-lbs. (max. 4.5 in.-lbs.) Provides Intrinsically-Safe Circuits in the following locations: Division 1 and 2 Class I, Groups A,B,C,D Class II, Groups E,F,G and Class III Entity Parameters V = 16.8V Po=Voc*Isc oc I = 1.2mA 4 sc L = 100mH a C = 0.39uF a 2017 Littelfuse Protection Relays & Controls Rev: 1-B-050517 wwwwwwwww.littelfuse.com/iss105.littelfuse.com/.littelfuse.com/