Current Switches: Auto Calibration, VFD Operation Auto Calibration (H904... H934)
Hawkeye 904/934 microprocessor-based current status switches provide a unique solution for accurately monitoring status of motors controlled by variable frequency drives.
Microprocessor-based…real labor saver…No need to calibrate to detect belt loss on VFDs
• Self-adjusting trip point…factory programmed to detect belt loss undercurrent conditions • Provides accurate status for VFD loads • Automatically compensates for the effects of frequency and amperage changes associated with VFDs • Nuisance Reduction feature...provides a secondary setpoint option of 50% of the originally measured current • LED indicates normal and alarm conditions
Field Mount Status Relay Field Mount Status Relay (H120, H120NC)
The H120/H120NC offer a fixed current switch and SPST relay in a single externally mounted housing. Combining the current sensor and relay in one easy- to- install pack- age eliminates the need to fit multiple devices into small electrical enclosures and simplifies the installation. Elimi- nate the labor associated with installing a separate current sensor.
• The nipple mount housing can be connected to any 1/2” conduit knockout for installation versatility • Relay coil LED streamlines job commissioning and check out
• HP ratings make the H120 ideal for control and status of fractional HP motors • 5-year limited warranty • NEMA 1 rated housing may be used in plenum spaces • Can be externally mounted to the electrical enclosure... space saver