Description
The United Electric H400K-456 differential pressure switch is a rugged, field-adjustable control designed for monitoring pressure differences in HVAC, fluid handling, and industrial process systems. With an adjustable differential range of 2 to 20 PSI, this switch is ideal for applications such as filter monitoring, flow verification, and system protection. The SPDT (single-pole, double-throw) contact configuration allows for flexible control of normally open and normally closed circuits. Housed in a NEMA 4-rated enclosure, the H400K-456 provides protection against water and dust, making it suitable for demanding indoor and outdoor environments.
Key Features
- Adjustable differential pressure range: 2–20 PSI
- SPDT switch configuration for flexible control wiring
- NEMA 4 enclosure for water-resistant and dust-tight protection
- Designed for HVAC, fluid systems, and industrial applications
- Durable construction for reliable long-term performance
- Ideal for filter monitoring, flow verification, and system protection
- Suitable for indoor and outdoor installation environments
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