Overview
The United Electric J6-218 is a proven industrial pressure switch designed for cost-effective pressure monitoring and control. This used unit features a gasketed die-cast aluminum enclosure and isolated metal bellows sensor for reliable snap-action switching at a pre-set pressure point. Rated at 30″ HGVAC–30 PSI and 480VAC 15A, the J6-218 is well-suited for alarm, safety, and emergency shutdown applications across HVAC, process control, and industrial equipment.
Key Features
- Bellows-type pressure sensor with adjustable set point
- Single SPDT (Single Pole Double Throw) switch output
- NEMA 4X gasketed aluminum enclosure for durability
- UL listed, cUL certified, CE compliant
- Rated 480VAC 15A electrical capacity
- Operates in any mounting position
Technical Specifications
- Model: J6-218
- Pressure Range: 30″ HGVAC to 0 PSI
- Electrical Rating: 480VAC, 15A
- Switch Type: SPDT snap-action
- Enclosure: NEMA 4X, gasketed die-cast aluminum
- Sensor Type: Isolated metal bellows
- Body Material: Aluminum
- Certifications: UL, cUL, CE
Typical Applications
- HVAC pressure monitoring and control (vacuum applications)
- Furnace draft proving
- Boiler air pressure sensing
- Refrigeration system protection
- Industrial safety and emergency shutdown systems
- Pressure alarm circuits
Compatibility & Replacements
Compatible With
- Standard industrial control panels and circuits
- HVAC equipment and systems requiring pressure monitoring
- 24VDC and 480VAC control logic (electrical rating-dependent)
- Single-phase and three-phase industrial power systems
Replaces / Drop-In Replacement For
- United Electric J6-218 (direct equivalent for used replacements)
- Compatible with other J6 series models with matching electrical and pressure ratings
Works With
- Pneumatic and vacuum control circuits
- Standard SPDT relay logic and switching circuits
- Industrial PLC and automation systems (via standard switch output)
- Emergency shutdown and safety interlock circuits



