Description
The United Electric J21K-254 pressure switch is a field-adjustable control designed for general-purpose pressure monitoring in HVAC, air systems, and light industrial applications. With an adjustable setpoint range of 0 to 90 PSI, this switch provides reliable performance for system cycling, alarm activation, and equipment protection. The SPDT (single-pole, double-throw) contact configuration allows for flexible control of both normally open and normally closed circuits. Housed in a NEMA 1 enclosure, the J21K-254 is intended for indoor use where protection from dust and incidental contact is sufficient. Its durable construction ensures consistent and repeatable operation in standard operating environments.
Key Features
- Adjustable pressure range: 0–90 PSI
- SPDT switch configuration for flexible control applications
- NEMA 1 enclosure for general-purpose indoor use
- Suitable for HVAC, air systems, and light industrial applications
- Reliable switching for system control, alarm, and protection
- Durable construction for consistent long-term performance
- Ideal for indoor installations requiring basic enclosure protection
