The 400 Series is a family of pressure, vacuum, differential pressure, and temperature switches offering one, two, or three SPDT switch outputs for alarm, shutdown, and control applications. The enclosures are die-cast aluminum with epoxy powder coating, rated for enclosure type 4X, and designed to operate in ambient temperatures from -40 to 160°F (-40 to 71°C). Switches are rated for 15 A at 125/250/480 VAC resistive loads and can be wired as normally open or normally closed. Pressure connections are 1/4" NPT female for most models, with 1/2" NPT for models 126-376, 520-535, and 1/8" NPT for models 540-547. The series is FM approved, UL listed, cUL certified, and CE compliant with the Low Voltage and Pressure Equipment Directives. Optional ATEX or GOST intrinsic safety compliance is available. The product weighs approximately 3 to 7.5 lbs depending on configuration.
The 400 Series is simple to install and operate, providing end-users multi-output alarm, safety and emergency shutdown functionality. It carries global agency certification. As an electromechanical switch, it can safely operate independently of the control system and switch reliably when called upon, free from potential communication errors or cyber concerns. Typical applications that utilize the 400 Series include regulating industrial gas production, and controlling assets like pumps, turbines, and compressors.
| United Electric Controls Company | |
|---|---|
| Product Category | Pressure Switches |
| Product Number | 400 Series |
| Product Name | Pressure Switch |
| Sensor Technology | Mechanical Deflection |
| Pressure Measurement | Differential (optional feature); Gauge (optional feature); Vacuum (optional feature) |
| Material | Gas |
| Features | Temperature Output (optional feature) |
| Display Type | Analog Meter (optional feature) |
