We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
RANCO Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 30 psi, Open on Fall - Single-Pressure Controls
RANCOSingle-Pressure Controls

RANCO Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 30 psi, Open on Fall

The RANCO Pressure Switch: Low Limit (SKU 400WG3, MPN RHS-90120) is a single-pressure control with an SPST contact form rated at 36V DC. It features an Open on Fall switch action and an auto reset, with a pressure…

SKU 3G-OTH-68426

Brand
RANCO
Item
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 30 psi, Open on Fall
Category
Single-Pressure Controls
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

RANCO
Manufacturer Part Number
RHS-90120
Type
Auto Reset, 0 psi to 735 psi, 30 psi, Open on Fall, SPST
Contact Form
SPST
Rated Voltage
36V DC
Switch Action
Open on Fall
Pressure Set Point
0 psi to 735 psi
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The RANCO Pressure Switch: Low Limit (SKU 400WG3, MPN RHS-90120) is a single-pressure control with an SPST contact form rated at 36V DC. It features an Open on Fall switch action and an auto reset, with a pressure set point range of 0 psi to 735 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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 40 psi, Open on Fall, SPST (MPN RHS-4080). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4080; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 40 psi, Open on Fall, SPST (MPN RHS-4080). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4080; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 15 psi, Open on Fall, SPST (MPN RHS-4560). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4560; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 15 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 15 psi, Open on Fall, SPST (MPN RHS-4560). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4560; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 15 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 55 psi, Open on Fall, SPST (MPN RHS-2580). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-2580; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 55 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 55 psi, Open on Fall, SPST (MPN RHS-2580). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-2580; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 55 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 35 psi, Open on Fall, SPST (MPN RHS-4075). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4075; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 35 psi, Open on Fall, SPST (MPN RHS-4075). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-4075; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 25 psi, Open on Fall, SPST (MPN RHS-3560). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-3560; Contact Form: SPST; Rated Voltage: 240V AC (2.9 FLA/17.4 LRA); Switch Action: Open on Fall; Pressure Differential: 25 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 25 psi, Open on Fall, SPST (MPN RHS-3560). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-3560; Contact Form: SPST; Rated Voltage: 240V AC (2.9 FLA/17.4 LRA); Switch Action: Open on Fall; Pressure Differential: 25 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 70 psi, Open on Fall, SPST (MPN RHS-275205). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-275205; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 70 psi, Open on Fall, SPST (MPN RHS-275205). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-275205; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.

More from RANCO

View all RANCO parts →
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 100 psi, Open on Fall, SPST (MPN RHS-400300). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-400300; Contact Form: SPST; Rated Voltage: 24V AC (125 VA); Switch Action: Open on Fall; Pressure Differential: 100 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 100 psi, Open on Fall, SPST (MPN RHS-400300). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-400300; Contact Form: SPST; Rated Voltage: 24V AC (125 VA); Switch Action: Open on Fall; Pressure Differential: 100 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Manual Reset, 0 psi to 735 psi, 475 psi, Open on Rise, SPST (MPN RHM-475). Key specifications — Brand: RANCO; Manufacturer Part Number: RHM-475; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Rise; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Manual Reset, 0 psi to 735 psi, 475 psi, Open on Rise, SPST (MPN RHM-475). Key specifications — Brand: RANCO; Manufacturer Part Number: RHM-475; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Rise; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 200 psi, Open on Fall, SPST (MPN RHS-400200). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-400200; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 200 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 200 psi, Open on Fall, SPST (MPN RHS-400200). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-400200; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 200 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 20 psi, Open on Fall, SPST (MPN RHS-85105). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-85105; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 20 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: Low Limit, Auto Reset, 0 psi to 735 psi, 20 psi, Open on Fall, SPST (MPN RHS-85105). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-85105; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 20 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 75 psi, Open on Fall, SPST (MPN RHS-300225). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-300225; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 75 psi, Open on Fall, SPST (MPN RHS-300225). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-300225; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 70 psi, Open on Fall, SPST (MPN RHS-250180). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-250180; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 70 psi, Open on Fall, SPST (MPN RHS-250180). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-250180; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 100 psi, Open on Fall, SPST (MPN RHS-550450). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-550450; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 100 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 100 psi, Open on Fall, SPST (MPN RHS-550450). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-550450; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 100 psi; Pressure Set Point: 0 psi to 735 psi.
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 140 psi, Open on Fall, SPST (MPN RHS-650510). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-650510; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 140 psi; Pressure Set Point: 0 psi to 735 psi.
RANCO
Pressure Switch: High Limit, Auto Reset, 0 psi to 735 psi, 140 psi, Open on Fall, SPST (MPN RHS-650510). Key specifications — Brand: RANCO; Manufacturer Part Number: RHS-650510; Contact Form: SPST; Rated Voltage: 36V DC; Switch Action: Open on Fall; Pressure Differential: 140 psi; Pressure Set Point: 0 psi to 735 psi.