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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Symcom / Littelfuse |
| Manufacturer Product Number | LSR-0 |
| Description | Current Monitor Relay; AC Current Proof; SPDT; Surface Mount |
| Datasheet | Download Datasheet |
The Littelfuse SymCom LSR-0 is a current proof relay (current monitoring relay). Self-powered proof relay: verifies current is flowing, to interlock fans, compressors, motors and heating elements. It is self-powered from the monitored conductor, so it needs no control power wiring.
Pick-up: Fixed, 15 A (max.) -- loop conductors for smaller motors. Drop-out: 2.5 A (min.).
Output: SPDT, 10 A general purpose. Sensor: Current transformer (0.725 in through-hole). Mounting: Surface Mount. Dimensions: 42.42 x 58.42 x 90.43 mm (1.67 x 2.3 x 3.56 in), H x W x D.
It operates from -20 to +70 °C. Approvals: CSA, CSA-NRTL/C, CE.
| Category | |
| Manufacturer | Symcom / Littelfuse |
| Monitoring Function | AC Current Proof |
| Sensor Type | Current transformer (0.725 in through-hole) |
| Pickup Current Setting | Fixed, 15 A (max.) -- loop conductors for smaller motors |
| Dropout Current Setting | 2.5 A (min.) |
| Output Mode | Self-powered proof relay: verifies current is flowing, to interlock fans, compressors, motors and heating elements |
| Input Voltage | Self-powered (induced from the monitored conductor) |
| Contact Configuration | SPDT |
| Output Rating | 10 A general purpose |
| Mounting Type | Surface Mount |
| Dimensions | 42.42 x 58.42 x 90.43 mm (1.67 x 2.3 x 3.56 in), H x W x D |
| Operating Temperature (Storage) (°C) | -20...+70 |
| Approvals | CSA, CSA-NRTL/C, CE |