The United Electric Controls (UE) B121-120 is an explosion-proof temperature switch from the 120 Series, designed for temperature monitoring, alarm, and control in demanding industrial environments. Unlike the H121 pressure-switch series, the B121-120 is a temperature switch with a direct-mounted immersion stem.
Features
- Adjustable 0–225°F temperature range
- Direct-mounted immersion temperature sensor
- Single SPDT switching output
- External set-point adjustment with reference dial
- Approx. 2% typical deadband
- Rugged nickel-plated brass sensing stem
- Explosion-proof construction for hazardous locations
- Epoxy-coated enclosure for demanding industrial environments
- Suitable for reliable local temperature alarm and control
- 120 Series supports hazardous-area industrial installations.
Typical Applications
- Pumps and compressors
- Industrial machinery
- Heat-tracing systems
- Process temperature monitoring
- Chemical and petrochemical plants
- Oil and gas installations
- Combustion systems
- Equipment over-temperature protection
- Industrial heating systems
- Marine and offshore auxiliary equipment
- Alarm and shutdown circuits
