Johnson Controls T-4000-2139 Cover This heavy-duty 120V to 24V

This heavy-duty 120V to 24V step-down transformer is engineered for continuous-duty applications where stable secondary voltage is critical for powering sensors

The lead length provides ample slack for proper routing around copper lines and internal components

Unlike fixed-head combs

What is the maximum pressure rating for this liquid line drier

protecting the electrical motor and surrounding components

Johnson Controls T-4000-2139 Cover This heavy-duty 120V to 24VThe Johnson Controls T 4000 2139 is a professional grade horizontal thermostat cover designed specifically for the T 4000 Series pneumatic room thermostats. Engineered for sleek, unobtrusive installation, this beige plastic cover features a clean aluminum faceplate without a thermometer window or setpoint adjustment openings. This configuration is ideal for facilities where unauthorized tampering must be minimized while maintaining a uniform aesthetic