Veris Industries H-738 Switch

The Veris Industries H-738 is a high-performance Hawkeye current switch with relay designed to streamline Building Automation Systems (BAS) by integrating motor status monitoring and start/stop control into a single, compact footprint. This solid-core unit features an adjustable trip point from 1 to 135 Amps, allowing technicians to fine-tune the device for precise fan and pump status monitoring. By combining a 24 VAC/DC SPST command relay with an independent current sensor, the H-738 eliminates the need for redundant hardware, reducing enclosure clutter and labor hours on the jobsite.

Engineered for industrial reliability, the induced-powered sensor requires no external power for current monitoring and features polarity-insensitive status outputs for a simplified wiring process. The Normally Open (N.O.) solid-state output and mechanical relay are rated for heavy-duty HVACR applications, including detecting belt loss, coupling shear, and motor failure. With onboard LED indicators for both relay and status verification, the H-738 provides instant visual diagnostics during commissioning or troubleshooting.

• Integrated Control: Combines a command relay and status sensor in one device for efficient motor start/stop and proof-of-flow.
• Adjustable Range: Supports a wide 1 to 135 Amp current range to accommodate various HVACR motor sizes.
• Compact Solid-Core Design: Saves critical space in electrical panels compared to discrete component setups.
• Visual Diagnostics: Status and relay LEDs provide immediate confirmation of operational state.
• High Reliability: Designed specifically for monitoring critical loads in automation and mechanical systems.

Common Questions Regarding the Veris H-738

Can the H-738 detect a broken drive belt?
Yes. By setting the adjustable set-point slightly below the normal operating amperage, the switch will trigger a loss-of-status signal if the motor begins to free-wheel due to a belt failure or coupling shear.

Does the relay require separate power from the current switch?
The relay coil requires a 24 VAC/DC signal for pilot control, but the current monitoring circuit is self-powered via induction from the monitored conductor.

Is this model compatible with VFDs?
The H-738 is calibrated for 50/60 Hz circuits. For variable frequency drive (VFD) applications where the frequency might drop below 50 Hz, a frequency-independent model from the Hawkeye series may be preferred for constant accuracy.

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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.