United Electric H100K-540 Pressure Switch
The United Electric H100K-540 is a rugged, 100 Series differential pressure switch engineered for contractors requiring precision in low-pressure industrial environments. This model is built with a setpoint range of 0.2 to 7 inches water column (WC) and utilizes a high-accuracy Buna-N diaphragm and Kapton sealing to ensure reliable sensing across varying process temperatures. For field installation, the unit features an internal adjustment with reference scale and a tamper-resistant setpoint lock, allowing for secure calibration in pump control, compressor monitoring, and fire suppression systems.
Encased in a NEMA 4X epoxy-coated aluminum enclosure, the H100K-540 is designed to withstand corrosive atmospheres and moisture-heavy environments common in HVACR and building automation. The electrical assembly includes a single SPDT switch rated for 15A at 125/250/480 VAC, providing versatile high-load capacity for direct control of annunciator panels or motor starters. With 1/8" FNPT pressure connections and dual 7/8" diameter knockouts, this switch facilitates straightforward integration into existing manifold or pipe configurations while maintaining a proof pressure rating of 400 PSI.
Key Benefits for the Technician
- NEMA 4X Protection: The epoxy-coated cast aluminum housing ensures durability in wash-down areas and outdoor installations.
- Precise Low-Range Sensing: Optimized for ultra-low differential monitoring from 0.2" to 7" WCD with a fixed deadband of 0.05 to 0.3" WC.
- Simplified Wiring: Features a slanted cover design for easy access to terminal blocks and internal grounding.
- High Electrical Compatibility: The 15A SPDT output handles diverse resistive and inductive loads without requiring additional relays in many setups.
- Chemical Resistance: Equipped with a Kapton and Buna-N diaphragm for compatibility with various non-corrosive gases and liquids.
Common Questions
What is the maximum pressure this switch can handle?
The H100K-540 has a working pressure of 200 PSI and a proof pressure of 400 PSI. Exceeding the proof pressure may cause permanent damage to the internal sensing element.
Can I use this for flow sensing in ductwork?
Yes, it is frequently used to monitor flow/no-flow conditions by measuring the pressure drop across filters or fans within the 0.2 to 7" WC range.
Is the setpoint adjustable from the outside?
No, this model uses internal setpoint adjustment to prevent unauthorized tampering. The cover must be removed to access the adjustment hex and reference scale.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $966.36
-65%$966.36
$338.23United Electric H100K-540 Pressure Switch
The United Electric H100K-540 is a rugged, 100 Series differential pressure switch engineered for contractors requiring precision in low-pressure industrial environments. This model is built with a setpoint range of 0.2 to 7 inches water column (WC) and utilizes a high-accuracy Buna-N diaphragm and Kapton sealing to ensure reliable sensing across varying process temperatures. For field installation, the unit features an internal adjustment with reference scale and a tamper-resistant setpoint lock, allowing for secure calibration in pump control, compressor monitoring, and fire suppression systems.
Encased in a NEMA 4X epoxy-coated aluminum enclosure, the H100K-540 is designed to withstand corrosive atmospheres and moisture-heavy environments common in HVACR and building automation. The electrical assembly includes a single SPDT switch rated for 15A at 125/250/480 VAC, providing versatile high-load capacity for direct control of annunciator panels or motor starters. With 1/8" FNPT pressure connections and dual 7/8" diameter knockouts, this switch facilitates straightforward integration into existing manifold or pipe configurations while maintaining a proof pressure rating of 400 PSI.
Key Benefits for the Technician
- NEMA 4X Protection: The epoxy-coated cast aluminum housing ensures durability in wash-down areas and outdoor installations.
- Precise Low-Range Sensing: Optimized for ultra-low differential monitoring from 0.2" to 7" WCD with a fixed deadband of 0.05 to 0.3" WC.
- Simplified Wiring: Features a slanted cover design for easy access to terminal blocks and internal grounding.
- High Electrical Compatibility: The 15A SPDT output handles diverse resistive and inductive loads without requiring additional relays in many setups.
- Chemical Resistance: Equipped with a Kapton and Buna-N diaphragm for compatibility with various non-corrosive gases and liquids.
Common Questions
What is the maximum pressure this switch can handle?
The H100K-540 has a working pressure of 200 PSI and a proof pressure of 400 PSI. Exceeding the proof pressure may cause permanent damage to the internal sensing element.
Can I use this for flow sensing in ductwork?
Yes, it is frequently used to monitor flow/no-flow conditions by measuring the pressure drop across filters or fans within the 0.2 to 7" WC range.
Is the setpoint adjustable from the outside?
No, this model uses internal setpoint adjustment to prevent unauthorized tampering. The cover must be removed to access the adjustment hex and reference scale.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
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Description
The United Electric H100K-540 is a rugged, 100 Series differential pressure switch engineered for contractors requiring precision in low-pressure industrial environments. This model is built with a setpoint range of 0.2 to 7 inches water column (WC) and utilizes a high-accuracy Buna-N diaphragm and Kapton sealing to ensure reliable sensing across varying process temperatures. For field installation, the unit features an internal adjustment with reference scale and a tamper-resistant setpoint lock, allowing for secure calibration in pump control, compressor monitoring, and fire suppression systems.
Encased in a NEMA 4X epoxy-coated aluminum enclosure, the H100K-540 is designed to withstand corrosive atmospheres and moisture-heavy environments common in HVACR and building automation. The electrical assembly includes a single SPDT switch rated for 15A at 125/250/480 VAC, providing versatile high-load capacity for direct control of annunciator panels or motor starters. With 1/8" FNPT pressure connections and dual 7/8" diameter knockouts, this switch facilitates straightforward integration into existing manifold or pipe configurations while maintaining a proof pressure rating of 400 PSI.
Key Benefits for the Technician
- NEMA 4X Protection: The epoxy-coated cast aluminum housing ensures durability in wash-down areas and outdoor installations.
- Precise Low-Range Sensing: Optimized for ultra-low differential monitoring from 0.2" to 7" WCD with a fixed deadband of 0.05 to 0.3" WC.
- Simplified Wiring: Features a slanted cover design for easy access to terminal blocks and internal grounding.
- High Electrical Compatibility: The 15A SPDT output handles diverse resistive and inductive loads without requiring additional relays in many setups.
- Chemical Resistance: Equipped with a Kapton and Buna-N diaphragm for compatibility with various non-corrosive gases and liquids.
Common Questions
What is the maximum pressure this switch can handle?
The H100K-540 has a working pressure of 200 PSI and a proof pressure of 400 PSI. Exceeding the proof pressure may cause permanent damage to the internal sensing element.
Can I use this for flow sensing in ductwork?
Yes, it is frequently used to monitor flow/no-flow conditions by measuring the pressure drop across filters or fans within the 0.2 to 7" WC range.
Is the setpoint adjustable from the outside?
No, this model uses internal setpoint adjustment to prevent unauthorized tampering. The cover must be removed to access the adjustment hex and reference scale.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
