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Small rectangular relay with metal terminals and plastic housing

Value Brand

Value Brand Potential Relay 35 A 420 V AC

SKU CH-BBST-C98KQ

A mechanical potential relay rated 35 A at 420 V AC with pick-up between 212 V and 235 V AC and drop-out at 121 V AC

  • Handles heavy loads with 35 amp contact rating
  • Operates reliably at 420 V AC coil voltage
  • Precise engagement between 212 V and 235 V pick-up
  • Safe release guaranteed at 121 V drop-out maximum
  • Compact 1 11/16 in height fits tight HVAC spaces

Potential Relay for HVAC Systems

This mechanical potential relay carries a 35 A contact rating and operates on a 420 V AC coil voltage. It is designed for HVAC control applications where a single-pole single-throw switching action is required. The unit measures 1 11/16 in height, 2 in width and 1 13/16 in depth.

Sustained Load Behaviour

The relay picks up between 212 V AC and 235 V AC and drops out at a maximum of 121 V AC, providing a defined voltage window for continuous operation. Pick-up voltage adjustability and time settings are not applicable, so the response remains fixed under steady-state conditions. California Proposition 65 warnings apply for cancer and reproductive harm.

35 Amp Contact Rating

The 35 A contact rating is the primary specification that determines suitability for a given compressor or motor load. This relay is not voltage sensing and has no compatible manufacturer model number listed. Buyers needing adjustable pick-up voltage or voltage sensing capability should select a different device.

Highlights

  • Handles heavy loads with 35 amp contact rating
  • Operates reliably at 420 V AC coil voltage
  • Precise engagement between 212 V and 235 V pick-up
  • Safe release guaranteed at 121 V drop-out maximum
  • Compact 1 11/16 in height fits tight HVAC spaces

Specifications

BrandZORO SELECT

Questions about this item

Does the 35 A potential relay run hot or draw noticeable power when it operates continuously in an HVAC circuit?

The relay is rated for 35 A contact current at 420 V AC coil voltage; mechanical potential relays of this type draw minimal coil power and do not generate significant heat during normal all-day operation.

What wiring or control components must already be in place for this potential relay to function in a compressor start circuit?

The relay requires a 420 V AC coil supply, a run-capacitor circuit that reaches 212–235 V AC pick-up voltage, and a drop-out path below 121 V AC; it mounts in a 1 11/16 in high by 2 in wide by 1 13/16 in deep enclosure.

Will this 35 A potential relay work with an older compressor that uses a different pick-up voltage range?

The relay picks up between 212 V AC and 235 V AC and drops out at 121 V AC maximum; if the existing compressor’s start-winding voltage stays within those limits the relay will operate correctly.

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