Eaton
Eaton ECSNOASC Current Sensing Relay 1-150A Self-Powered
Adjustable current sensing relay monitors 1-150 A with SPST-NO contacts rated .15 A at 240 V, solid core with .74 in sensing hole, LED status indicator, screw terminals for 14 AWG wire.
- Adjustable 1-150 A trip point covers wide load range
- Self-powered design needs no separate control supply
- LED status indicator shows trip condition at a glance
- SPST-NO contacts rated 0.15 A at 240 V AC/DC
- 74 in sensing hole accepts conductors up to 14 AWG
Self-Powered Current Sensing Relay
The Eaton ECSNOASC is a self-powered current sensing relay designed for monitoring AC or DC circuits up to 150 A. It suits panel builders and maintenance technicians who need adjustable overcurrent or undercurrent protection without an external supply. The solid-core design and surface-mount style simplify installation inside enclosures or on machinery frames. No auxiliary voltage is required for operation.
Adjustable Trip Point and LED Status
The trip point adjusts from 1 to 150 A using a switch, allowing precise setting for the load being monitored. A built-in LED indicator provides immediate visual confirmation of relay status during commissioning and routine checks. The SPST-NO contact switches at 0.15 A at 240 V, making it suitable for direct control of contactor coils or alarm circuits. No separate configuration software is needed.
Screw Terminals and 14 AWG Wiring
Screw-terminal connections accept 14 AWG wire for secure, tool-friendly termination in the field. The 0.74 in sensing hole accommodates common conductor sizes without requiring cable modification. At 3.5 in body depth, the unit fits standard panel layouts while leaving room for wiring bend radius. Surface mounting with two pins ensures stable attachment in vibration-prone environments.
Highlights
- Adjustable 1-150 A trip point covers wide load range
- Self-powered design needs no separate control supply
- LED status indicator shows trip condition at a glance
- SPST-NO contacts rated 0.15 A at 240 V AC/DC
- 74 in sensing hole accepts conductors up to 14 AWG
Specifications
| Brand | EATON |
|---|
Questions about this item
Will the screw terminals on this relay need re-torquing after the first few thermal cycles?
The relay uses screw terminals rated for 14 AWG wire; periodic inspection and re-torquing to the manufacturer's specification is recommended after initial operation.
At 150 A continuous load, does the solid core or the 0.15 A output contact reach its limit first?
The solid core is rated to 150 A while the SPST-NO contact is rated only 0.15 A at 240 V AC or DC, so the output contact is the limiting element.
Does the LED indicator or the self-powered design add noticeable heat inside a closed panel during all-day operation?
The relay is self-powered from the monitored conductor and draws only the small current needed for the LED indicator, so added heat is minimal.
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