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Small brass pressure switch with 1/4 inch flare fitting and electrical terminals

Value Brand

Value Brand Press Switch Open on Rise 200 PSI

SKU CH-KNKA-R2BV1

HVAC high-pressure control switch opens on rise at 200 PSI, rated 120/240V AC and 24V DC

  • Opens at 200 PSI to protect against over-pressure
  • Fixed differential keeps the setting reliable without field adjustment
  • SPST contact form simplifies wiring for on/off control
  • Rated for 120/240 V AC and 24 V DC for flexible installation
  • 1/4 in flare connection fits standard HVAC refrigerant lines

Press Switch Open on Rise 200 PSI

This ZORO SELECT press switch is a high-pressure control designed for HVAC systems. It operates with a fixed differential and opens on pressure rise at 200 PSI. The unit features a 1/4 inch female flare connection and carries a California Proposition 65 warning for cancer and reproductive harm.

Suits fixed-threshold high-pressure protection

Installers needing a non-adjustable SPST switch rated for 120/240V AC and 24V DC will find this device appropriate. It is not for applications requiring an adjustable differential, a different pressure range, or a switch action that closes on rise. Buyers who need a lower maximum pressure setting should look elsewhere.

Sustained operation at rated voltage

Under continuous load the contact form remains SPST with a fixed pressure differential. The switch maintains its open-on-rise behaviour up to the 700 PSI maximum pressure range. Performance stays consistent within the 120/240V AC and 24V DC ratings during extended duty cycles.

How it compares

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

Price $4.99
Cheaper than about 95% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

What voltage supply do I need for the 120/240V AC, 24V DC rated switch?

Provide either 120 V AC, 240 V AC or 24 V DC to match the rated voltage of the control.

Will the 1/4 in flare female connection fit my existing copper line set?

The switch uses a 1/4 in female flare fitting, so it accepts a standard male flare of the same size.

How do I verify the switch opens at the 200 PSI set point after installation?

Pressurise the system and watch the circuit open when pressure reaches 200 PSI, confirming open-on-rise action.

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