MARS M39023 Limit Switch 190° Open 160° Close 120/240V HVAC

SKU: M39023

Weight	1 lbs
Dimensions	8 × 8 × 8 in

$18.78

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$18.78	0%
5–9	$17.84	5%
10+	$16.90	10%

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MARS M39023 Limit Switch 190° Open 160° Close 120/240V HVAC

Specifications & product details

Overview

The MARS M39023 Temperature Limit Switch is a high-quality HVAC safety control designed to protect heating systems from overheating.

This snap disc limit switch is configured to open on temperature rise at 190°F and automatically reset at 160°F, making it ideal for gas furnaces, air handlers, and heating equipment requiring reliable thermal protection.

Key Features

Opens at 190°FCloses at 160°FRated 10A @ 120V / 5A @ 240VAuto-reset design
Includes tab-to-screw terminal adaptersDirect OEM replacement for many furnace limit controls
Durable metal mounting base
Perfect for furnace high-limit safety applications and HVAC temperature regulation systems.
Designed for professional HVAC technicians and service contractors.

Product details

Part / SKU	M39023

Package includes

MARS M39023 Limit Switch 190° Open 160° Close 120/240V HVAC

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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