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RANCO Pressure Switch: High Limit, Manual Reset, 0 psi to 735 psi, 440 psi, Open on Rise - Single-Pressure Controls
RANCOSingle-Pressure Controls

RANCO Pressure Switch: High Limit, Manual Reset, 0 psi to 735 psi, 440 psi, Open on Rise

The RANCO RHM-440 is a single-pressure high-limit pressure switch with a manual reset, featuring an SPST contact form rated at 36V DC. Its switch action is open on rise, with a pressure set point range of 0 psi to…

SKU 3G-OTH-68808

Also listed as: RHM440 · RHM 440

Brand
RANCO
Item
Pressure Switch: High Limit, Manual Reset, 0 psi to 735 psi, 440 psi, Open on Rise
Category
Single-Pressure Controls
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RANCO
Manufacturer Part Number
RHM-440
Type
Manual Reset, 0 psi to 735 psi, 440 psi, Open on Rise, SPST
Contact Form
SPST
Rated Voltage
36V DC
Switch Action
Open on Rise
Pressure Set Point
0 psi to 735 psi
Pressure Differential
440 psi

Technical Documents

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RANCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RANCO RHM-440 is a single-pressure high-limit pressure switch with a manual reset, featuring an SPST contact form rated at 36V DC. Its switch action is open on rise, with a pressure set point range of 0 psi to 735 psi and a pressure differential of 440 psi.

Frequently Asked Questions

What is the RANCO RHM-440 pressure switch used for?

The RANCO RHM-440 is a single-pressure high-limit switch that opens on rise to protect equipment from overpressure. It is used in industrial refrigeration, HVAC, and process control systems where a manual reset is required after a high-pressure event.

What are the specifications of the RANCO RHM-440?

The RANCO RHM-440 is a manual-reset, SPST pressure switch rated at 36V DC. It opens on rise with a pressure set point range of 0 psi to 735 psi and a pressure differential of 440 psi. The contact form is SPST, and the switch action is open on rise.

Where to buy the RANCO RHM-440 worldwide?

3G Electric supplies the RANCO RHM-440 pressure switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this manual-reset, high-limit switch.

How to install the RANCO RHM-440 pressure switch?

Install the RANCO RHM-440 in a dry location, ensuring the pressure connection is tight and leak-free. Wire the SPST contacts for 36V DC control circuits. After a high-pressure trip, manually reset the switch only after the system pressure drops below the differential of 440 psi.

Used in

Common applications for RANCO
Commercial refrigeration — RANCO A12-1506 constant differential defrost control for walk-in freezer defrost cycles
HVAC system protection — RANCO RHS-250150 high-limit pressure switch for overpressure safety in chillers
Industrial cooling — RANCO O12-1506 dual pressure control for monitoring suction and discharge pressures in refrigeration racks
Food storage — RANCO O10-1408 temperature control for maintaining -15°F to 40°F in cold storage rooms
Compressor protection — RANCO P30-3701 mechanical lube oil pressure control for Danfoss compressors in supermarket refrigeration
Refrigerant filtration — RANCO RBFD-163 liquid line filter drier for moisture removal in HCFC systems up to 50 tons

RANCO Products

3G Electric supplies RANCO single-pressure controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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