Link has been copied to clipboardIntrinsically Safe Relays
Littelfuse intrinsically safe relays are UL 913 listed as associated apparatuses for interfacing between hazardous and nonhazardous areas. These high-quality products protect hazardous location circuits and are core components for intrinsically safe applications. The ISS-105 series is designed as a "smart" five-channel relay and pump controller, which can be configured for pump-up or pump-down applications. The ISS-102 offers two LEDs for visual indication of relay engagement. These intrinsically safe relays are offered with single-, two-, three-, four-, or five-channel options.
- Input voltages from 90 V ac to 120 V ac
- Maximum input power tolerances up to 2 W
- Probe sense voltages of 5 V dc continuous and 5 V dc pulsed
- Pilot duty power ratings of 180 VA at 120 V ac
- Minimum electrical contact life of 100 000 cycles at rated loads
- Mechanical contact life of 10 million cycles
- Operate at temperatures ranging from 20 °C to +55 °C
- Meet IEC 61000 safety requirements
- UL Listed
- DIN rail-mounted and surface-mounted versions available
- LED status indicators
- Small size and low weight
Intrinsically Safe Relays Parts
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| 90 - 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 1.5 | Pilot Duty: 180 VA @ 120 Vac C300; General Purpose: 8 A @ 120 Vac | 5 Vdc continuous (probe) | ||||
| 90 - 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 22 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 1.5 | Pilot Duty: 180 VA @ 120 Vac C300; General Purpose: 8 A @ 120 Vac | 5 Vdc continuous (probe) | ||||
| 120 Vac nominal | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 20 AWG; Depluggable Phoenix Contact - Series MSTB plugs (or equivalent) | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 2 | Pilot Duty: 180 VA @ 120 Vac C150; General Purpose: 5 A @ 120 Vac | 5 Vdc pulsed (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 2 | Pilot Duty: 180 VA @ 120 Vac C150; General Purpose: 5 A @ 120 Vac | 5 Vdc pulsed (probe) | ||||
| 120 Vac nominal | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 20 AWG; Depluggable Phoenix Contact - Series MSTB plugs (or equivalent) | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 2 | Pilot Duty: 180 VA @ 120 Vac C150; General Purpose: 5 A @ 120 Vac | 5 Vdc pulsed (probe) | ||||
| 120 Vac nominal | Torque: 3.5 to 4.5 in-lbs (max. 4.5 in.-lbs); Wire: 12 - 20 AWG; Depluggable Phoenix Contact - Series MSTB plugs (or equivalent) | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 2 | Pilot Duty: 180 VA @ 120 Vac C150; General Purpose: 5 A @ 120 Vac | 5 Vdc pulsed (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 5 | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac | 5 Vdc continuous (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 5 | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac | 5 Vdc continuous (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 5 | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac | 5 Vdc continuous (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 5 | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac | 5 Vdc continuous (probe) | ||||
| 120 Vac | Torque: 3.5 to 4.5 in-lbs (max. 6 in.-lbs); Wire: 12 - 20 AWG | Division 1 and 2; Class I Groups A B C D; Class II Groups E F G; Class III | 5 | Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 7 A @ 240 Vac | 5 Vdc continuous (probe) |
Intrinsically Safe Relays Applications
- Electric motors
- Pumps