Markel Products Co. 44067001 L240F Manual Reset Limit Switch

Description

Product Overview

The Markel Products Co. 44067001 is an L240F Manual Reset Limit Switch designed to provide dependable high-temperature overheat protection in electric heating applications. With a trip point of 240°F, this limit switch acts as a critical safety device — interrupting the circuit when unsafe temperatures are detected and requiring a manual reset before the heater can resume operation. This manual reset feature ensures that a technician or qualified service professional evaluates and resolves the root cause of the overheat condition before the system is returned to service, preventing repeat failures and protecting equipment and occupants.

Key Features

• Manual reset operation — requires deliberate reset action after trip event
• L240F designation indicates a 240°F (116°C) trip temperature
• Designed for use in Markel electric heaters and compatible heating equipment
• Acts as a safety cutout to prevent damage from overheating
• OEM-quality replacement component for reliable, long-term performance
• Compact design for straightforward installation in heater assemblies

Application

This limit switch is a direct OEM replacement part for Markel Products Co. electric heaters and is commonly used in commercial and residential electric heating units. It is installed in the heat stream or on the heating element assembly to monitor operating temperatures and shut down the unit if a dangerous overheat condition occurs.

Why Choose a Manual Reset Limit?

Unlike automatic reset limits that may allow a heater to cycle on and off repeatedly during a fault condition, a manual reset limit requires human intervention after a trip. This design philosophy prioritizes safety by ensuring the underlying cause — such as blocked airflow, a failed fan motor, or a wiring fault — is identified and corrected before the heater is restarted.

Specifications

• Brand: Markel Products Co.
• Part Number: 44067001
• Model: L240F
• Type: Manual Reset Limit Switch
• Trip Temperature: 240°F (116°C)
• Reset Type: Manual