Q120-switch
United Electric Electromechanical Pressure Switch Q120

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United Electric Electromechanical Pressure Switch Q120
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Specifications
| Brand | United Electric |
|---|---|
| Model Number | Q120 |
| Official Product Name | 120 Series Pressure Switch |
| Applicable System | Industrial pressure monitoring and control systems |
| Product Type | Electromechanical Pressure Switch |
| Equivalent Standard | NEMA 4X, IP66 (typical for 120 series) |
| Product Status | In Stock |
| Proof Pressure | Up to 500 psi (depending on sensor) |
| Electrical Rating | 5 A @ 125/250 VAC; 5 A @ 30 VDC (resistive) |
| Enclosure Rating | NEMA 4X (IP66) standard |
| Switch Type | SPDT snap-acting |
| Wetted Materials | 316 stainless steel, Buna-N (standard); optional Hastelloy, Monel |
| Temperature Range | -40°F to 180°F (-40°C to 82°C) for standard models |
| Repeatability | ±1% of adjustable range |
| Process Connection | 1/4" NPT female (standard) |
| Weight | Approximately 2 lbs (0.9 kg) |
| Pressure Range | Typically 1-100 psi (varies by model; Q120 often configured for low ranges) |
Product Description
Part of the UE 120 Series, this switch is engineered to provide accurate and repeatable switching at a set point, making it suitable for alarm, shutdown, and control applications. The Q120 features a weatherproof enclosure and is available with various wetted materials to accommodate different media and process conditions. This pressure switch operates on a simple and proven mechanism, utilizing a diaphragm or piston sensor that actuates a snap-acting electrical switch. The Q120 offers a wide adjustable range and is available with either a fixed or adjustable deadband, depending on the specific model configuration. Its compact design allows for easy installation in tight spaces, while the terminal block wiring provides straightforward electrical connections. United Electric Controls, a leader in pressure and temperature switching technology, manufactures the Q120 to meet rigorous industry standards. The switch is designed for long service life and minimal maintenance, with a NEMA 4X enclosure option for washdown and corrosive environments. Whether used in oil and gas, chemical processing, or water treatment, the Q120 delivers dependable performance and safety. The United Electric Q120 is a robust electromechanical pressure switch designed for reliable pressure monitoring and control in demanding industrial environments.
Basic Product Information
- Wide adjustable pressure range with set point repeatability
- Snap-acting electrical switch for reliable operation
- Available with various wetted materials (e.g., 316 stainless steel, Buna-N)
- Compact design for easy installation
- Fixed or adjustable deadband options
- Terminal block wiring for simple electrical connections
- CE and ATEX options available for hazardous locations
- Weatherproof NEMA 4X enclosure for harsh environments
Technical Specifications
Version & Model Difference
The Q120 is part of the UE 120 series, which includes various models differentiated by sensor type (diaphragm, piston, bellows), pressure range, wetted materials, and electrical configuration. The Q120 typically denotes a specific configuration with a diaphragm sensor and a lower pressure range. Other models in the series, such as the J120 (piston) or H120 (bellows), are designed for higher pressures or different media compatibility. Additionally, the 120 series offers options for adjustable deadband (e.g., with a suffix) and hazardous location approvals (e.g., Q120-151 for ATEX).
Application Scenarios
- United Electric 8BS 0822E Remote Capillary Temperature Indicating Switch
- CS Instruments UDM 515 Portable Measurement Device
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