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Brown octal-base control relay with eight flat pins and LED indicator

Macromatic

Macromatic LCP2A250F2 HVAC Control Relay 120V Pump Up

SKU CH-VQ4M-642GP

Controls liquid level with a single-probe pump-up relay at 120 V AC, 10 A contact rating, octal socket mount and LED status indicator

  • Pump-up relay automates liquid-level control
  • SPDT contacts switch loads up to 10 A at 240 V AC
  • 120 V AC coil voltage suits standard mains supply
  • Sensitivity adjustable from 1 000 to 250 000 ohm for varied fluids
  • LED status indicator gives immediate visual confirmation

HVAC Level Control Relay for Pump-Up Applications

This Macromatic relay manages liquid level using a single probe and an octal socket mount. It operates on 120V AC input and provides SPDT contacts rated at 10 A for 240V AC or 7 A at 28V DC. The unit suits industrial tanks and sump systems requiring automatic fill control.

Sensitivity Range Defines Probe Distance

The relay triggers between 1,000 ohm and 250,000 ohm resistance, setting the maximum probe cable length and liquid conductivity it can detect. Installers must match the application water type and wiring distance to this window or the pump will not start or stop reliably.

Handles Standard Motor Loads Within Contact Ratings

The 10 A AC rating covers typical fractional-horsepower pump motors on 120V or 240V supplies. An LED indicator shows relay status for quick troubleshooting. It is not suited for direct control of large multi-horsepower motors or loads exceeding the stated current limits.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 62% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameMACROMATIC

Questions about this item

What does the 10 A contact rating mean once the relay is installed?

The relay can switch loads up to 10 A at 240 V AC or 7 A at 28 V DC in the application.

What does the 8-pin octal base cap in practice?

The octal base limits the relay to a single SPDT contact form and the single-probe pump-up function.

What does the relay physically need to fit and mount?

It requires an 8-pin octal socket and panel space of 2.97 in height by 1.7 in depth.

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