Veris H934 Current Switch

Features

  • Automatically compensates for the effects of frequency and amperage changes in monitored conductor associated with VFDs
  • Nuisance reduction – provides a secondary setpoint option of 50% of the originally measured current
  • Rapid troubleshooting – LED indicates normal and alarm conditions
  • Induced from monitored conductor sensor power
  • LED status, LED relay power
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Veris Industries is an energy and environmental sensor partner that provides quality products for commercial HVAC and other automation applications. We offer complete lines of reliable, long-lasting innovative power monitoring products.

The Hawkeye 934 current monitoring devices provide unique solutions for accurately monitoring the status of motors controlled by variable frequency drives. The microprocessor-based H934 store the sensed amperage values for normal operation at various frequency ranges in non-volatile memory. This information allows the device to distinguish between a reduced amp draw due to normal changes in the frequency and an abnormal amp drop due to belt loss or other mechanical failures. The relay on the H934 is isolated from the current switch, and all relay connections are externally accessible on the device.

Dimensional Drawing

Wiring Diagram – Monitoring Fan /Pump Motors For Positive Proof Of Flow

Applications

  • Monitoring positive status on motors controlled by variable frequency drives.
  • Replacing pressure switches.
  • Measuring current and load trending.

Specification

Model H934
Application Building Automation Systems
Current Measurement Range 3.5 – 135 A
Current Sensor type Current Switch, AC
Electrical Wiring Size  24 – 14 AWG (0.2 – 2.1 mm²)
Measurement Type  AC Current | VFD
Monitored Frequency Range 50 – 60 Hz
Monitored Wire Size 0.8″ (21 mm)
Mounting Split Core
Operating Humidity 10 – 90% RH, non-condensing
Operating Temperature 5 – 140 °F (-15 – 60 °C)
Output Specifications N.O. 0.1 A @ 30 VAC/DC
Outputs Switch output | Relay
Product Certification UL | CE
Product Type Sensor
Range VFD Series
Relay Coil Voltage 24 VAC/DC
Relay Construction Mechanical
Relay Contact Ratings Resistive: 5 A @ 250 VAC | Resistive: 5 A @ 30 VDC
Relay Poles/Throw SPST
Setpoint Automatic Calibration
Warranty 5 years

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