We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact grey relay box with split-core clamp, terminal strip, and LED indicator

Eaton

Eaton ECSNCASP Current Sensing Relay 1.75-150A Self Powered

SKU CH-ZF4D-CSK76

Adjustable current-sensing relay covers 1.75 to 150 A with self-powered operation and a 0.12 s trip delay

  • Self-powered operation eliminates external supply
  • Adjustable trip point from 1.75 to 150 A covers wide range
  • Split-core design allows installation without disconnecting conductors
  • LED status indicator provides immediate visual feedback
  • Fast 0.12 sec trip delay limits fault exposure

Adjustable Current Sensing Relay

The Eaton ECSNCASP is a self-powered relay that detects AC current from 1.75 to 150.00 amperes without an external supply. It suits installers who need a compact, split-core device for status monitoring or load-shedding circuits in electrical panels.

Compatibility Checklist

Verify the conductor fits the split-core opening and that the circuit voltage does not exceed 135 volts AC or DC at the relay contacts. Confirm a 0.12 second trip delay matches the protection scheme and that surface mounting with terminal-strip wiring is practical in the enclosure.

Integration Notes

The solid-state SPST-NC output opens when the adjustable trip point is reached, freeing the control circuit from continuous coil power. An LED indicator shows trip status at a glance, and the 2.25 by 3.53 by 1.19 inch body fits standard panel layouts without requiring a separate control transformer.

How it compares

Measured against everything we stock in Solenoid & Power Relays, at today’s prices. Recalculated every night.

Price $159.99
Pricier than about 92% of the 125 comparable items (median $26.99).

Specifications

Product
Brand nameEATON

Questions about this item

What accessories or separate purchases are required to install the ECSNCASP relay?

The relay mounts on a surface and connects via its built-in terminal strip. No extra mounting hardware or wiring harnesses are listed in the specifications.

How do I decide which trip-point setting to use on the 1.75-150A adjustable range?

Set the trip point between 1.75 and 150.00A to match the current level at which you want the SPST-NC solid-state output to open.

What does the 0.20A @ 135V contact rating mean for my control circuit?

The solid-state output can switch up to 0.20 amps at 135 volts AC or DC, so the driven load must stay within that limit.

More in Solenoid & Power Relays

Similar items