United Electric H100K-540 Pressure Switch

.2-7"wc SPDT NEMA4X # Switch

United Electric H100K-540 Differential Pressure Switch – 0.2–7" WC, SPDT, NEMA 4X, Internal Adjustment

The United Electric H100K-540 is a high-performance differential pressure switch designed for demanding industrial and OEM applications. Featuring a setpoint range of 0.2 to 7 inches of water column (WC), this SPDT switch is housed in a NEMA 4X-rated epoxy-coated aluminum enclosure for superior weather resistance and durability.

Part of the trusted UE 100 Series, the H100K-540 offers internal setpoint adjustment, Kapton and Buna-N wetted materials, and 1/8" FNPT pressure connections, making it ideal for use in harsh environments, fire suppression systems, pump and compressor control, and annunciator panel inputs.

🔧 Key Features:

• Model: H100K-540

• Pressure Range: 0.2 to 7 in. WC differential

• Switch Type: (1) SPDT

• Electrical Rating: 15A @ 125/250/480 VAC

• Enclosure Rating: NEMA 4X, epoxy-coated cast aluminum

• Setpoint Adjustment: Internal, with reference scale

• Pressure Connection: 1/8" FNPT (epoxy-coated aluminum)

• Electrical Entry: Two 7/8" diameter knockouts

• Wetted Materials: Kapton diaphragm, Buna-N seal, aluminum connector

• Mounting: Rugged one-piece enclosure with slanted cover for easy wiring access

✅ Applications:

• Fire suppression and alarm systems

• Pump and compressor control

• HVAC and building automation systems

• OEM processing equipment

• Annunciator panel inputs

• Industrial differential pressure monitoring

💡 Why Choose the H100K-540?

• Tamper-resistant setpoint lock for secure adjustment

• Wide adjustable range (0.2" WC to 7" WC)

• High electrical load capacity: up to 15A

• Weatherproof and corrosion-resistant NEMA 4X enclosure

• Proven reliability in harsh environments and mission-critical systems

⚠️ Compliance & Safety:

• NEMA 4X rated for weatherproof operation

• UL and CSA compliant

• Rugged construction ensures long service life in demanding environments

Ensure safe and accurate pressure control with the United Electric H100K-540 Differential Pressure Switch — built for industrial performance, weatherproof protection, and flexible integration into a wide range of systems.

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