Overview
The United Electric J300 B121 9560 450 is a single-switch pressure controller engineered for precise pressure regulation in industrial and commercial applications. This Type J300 unit combines robust electromechanical design with 15A electrical capacity and 50 PSI maximum pressure rating, making it ideal for HVAC systems, pneumatic control circuits, and fluid handling systems where dependable switching performance is critical.
Key Features
- Single-switch configuration with external adjustment via reference dial for field setpoint changes
- 15 amp electrical rating at 125/250 VAC ensures compatibility with standard industrial circuits
- 50 PSI maximum pressure rating suitable for moderate-pressure applications
- Type J300 proven platform used across thousands of industrial installations
- Durable construction meets or exceeds industry standards for pressure switch reliability
Technical Specifications
| Type | J300 |
| Model | B121 9560 450 |
| Electrical Rating | 15A at 125/250 VAC |
| Maximum Pressure | 50 PSI |
| Switch Configuration | Single Switch (SPST) |
| Setpoint Adjustment | External via Reference Dial |
| Weight | 5.5 lbs |
| Manufacturer | United Electric Controls |
| Series | 120 Series |
Typical Applications
- HVAC and air handling unit pressure monitoring and control
- Pneumatic system pressure regulation and safety switching
- Fluid flow and pump discharge pressure protection
- Water pressure monitoring in industrial and commercial systems
- Alarm and shutdown control based on preset pressure thresholds
Compatibility & Replacements
Compatible With
- Standard 125/250 VAC industrial control circuits
- HVAC equipment with direct pressure switch interfaces
- Pneumatic control systems requiring single-point pressure monitoring
- Pump and compressor discharge protection circuits
- Building automation systems with relay-based control logic
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. United Electric J300 series pressure switches share mounting and electrical interfaces within the Type J300 platform; confirm specific model interchangeability with your application documentation.
Works With
- Standard electrical relays and contactor circuits
- PLC analog and digital input modules (via relay contact closure)
- Building management system (BMS) pressure monitoring networks
- HVAC control panels and standalone pressure control logic
- Safety and alarm circuits requiring pressure-actuated switching
