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Square base SPST relay with silver alloy spade terminals

Zoro Select

Zoro Select 5MMA4 Switching Relay SPST 240V AC air conditioning

SKU CH-XXJH-RM2PV

SPST switching relay rated 30 A at 240 V AC for air-conditioning, compressor and refrigeration circuits

  • SPST contact form simplifies single-circuit switching
  • Silver alloy and copper contacts resist arcing at 30 A / 40 A
  • Spade terminals enable quick field wiring
  • 50/60 Hz rating suits standard mains supplies
  • Prop 65 notice flags regulated chemical content

Product Identity

The Zoro Select 5MMA4 is a single-pole single-throw switching relay rated for 240V AC air-conditioning circuits. It serves installers and maintenance technicians who need a square-base relay with spade terminals for compressor, refrigeration or submersible-pump control.

Installation Checklist

Verify that the control circuit operates at 50 or 60 Hz and that the load does not exceed 40 A at 120V AC or 30 A at 240V AC. Confirm the existing mounting surface accepts a square base and that spade-terminal connectors match the wiring harness in use.

Build and Connectors

The relay body uses a square base with silver-alloy and copper contacts for reliable switching. Spade terminals allow quick push-on connections without soldering, simplifying field replacement on single-phase motors, waste dispensers and similar equipment.

How it compares

Measured against everything we stock in Fans, Vents & Climate Control, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 96% of the 328 comparable items (median $68.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

What comes in the box and what must I buy separately?

The relay ships as a single unit with spade terminals installed. No mounting hardware, wiring harnesses or low-voltage control relays are included.

Which current rating should I match to my circuit?

Choose based on your supply voltage: the contacts carry 40 A at 120 V AC or 30 A at 240 V AC.

How does the 30 A at 240 V AC rating apply in an actual air-conditioning circuit?

It represents the maximum continuous load the SPST contacts can switch on a 240 V AC compressor or fan motor at 50/60 Hz.

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