Barksdale MT1H-H251-12-A Temperature Switch 50-250F Spdt

Product Description

The BARKSDALE MT1H-H251-12-A is a remote mount temperature switch designed for industrial and commercial sensing applications where the sensing point must be located away from the switch body. It operates across a range of 50 to 250 degrees F using a capillary stem type, allowing flexible placement of the sensing element. The switch uses a Single Set Point SPDT (single-pole, double-throw) contact form, making it suitable for control, alarm, or shutdown circuits. The copper capillary construction measures 3/8 inch in diameter by 4-15/32 inches in length. Accuracy is rated at 1 percent of the mid-60 percent of full scale. Licensed control technicians and industrial electricians are the primary installers.

This temperature switch is suited for use in HVAC systems, industrial process control, refrigeration equipment, and fluid temperature monitoring applications where remote sensing is required. The capillary design allows the sensing bulb to be positioned at the point of measurement while the switch body is mounted in a more accessible location. It is commonly used in both commercial HVAC and light industrial settings requiring reliable single-setpoint temperature actuation.

Key Features

• Temperature range: 50 to 250 degrees F
• Remote mount capillary stem type for flexible sensing placement
• Copper capillary construction for durability and thermal conductivity
• Single Set Point SPDT contact form for control or alarm circuit integration
• Accuracy rated at 1 percent of mid-60 percent of full scale
• Compact body dimensions: 3.88 x 2.75 x 7.38 inches

Compatibility

Designed as an OEM-style replacement or direct-install remote mount temperature switch for commercial HVAC, refrigeration, and industrial process control systems requiring a capillary-type SPDT temperature switch in the 50 to 250 degrees F range.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC-R technician in accordance with applicable NEC requirements. De-energize the circuit completely before wiring the SPDT contacts. Route the capillary carefully to avoid kinking, sharp bends, or contact with abrasive surfaces that could damage the copper tubing. Verify the set point and contact action against system control requirements before restoring power.