Loading...
Please note our shipping changes for Wednesday, Nov 26th. Freight, FedEx ground & Cust PickUp cutoff will be 11:00AM ET. FedEx Priority cutoff will be 1:00 PM ET. No UPS shipping will be available on this day.
Orders placed after the Wednesday cutoffs will process on Monday, December 1st. See ADC Shipping Policies for exceptions.
- Barcode / RFID / Vision
- Bulk Wire & Cable
- Cables (Terminated)
- Circuit Protection / Fuses / Disconnects
- Communications
- Drives & Soft Starters
- Enclosure Thermal Management & Lights
- Enclosures & Racks
- Field I/O
- HMI (Human Machine Interface)
- Hydraulic Components
- Motion Control
- Motor Controls
- Motors
- Pneumatic Components
- Power Products (Electrical)
- Power Transmission (Mechanical)
- Process Control & Measurement
- Programmable Controllers
- Pushbuttons / Switches / Indicators
- Relays / Timers
- Safety
- Sensors / Encoders
- Stacklights
- Structural Frames / Rails
- Tools & Test Equipment
- Valves
- Water (Potable) Components
- Wire & Cable Management
- Wire & Cable Termination
- Retired Products
Configuration Utilities
- PLC Family Selector
- P1000 PLC Systems
- P2000 PLC Systems
- P3000 PLC Systems
- ProductivityCODESYS
- CLICK PLC Systems
- Do-more® BRX PLC Systems
- LS-Electric® XGB PLC Systems
- Productivity®Open Systems
- Datalogic® Safety Light Curtains
- LS-Electric® Servo Systems
- Nitra® Pneumatic Grippers
- Object Detection (Sensors)
- PAL Controller Configurator
- Precision Gearbox Selector
- Protos X® Field I/O
- Pyrometers Selector
- Quadritalia® Modular Enclosures
- Stellar® Soft Starters
- Stepper System Selector
- SureFrame T-slot Extrusion
- SureMotion® XYZ Gantry
- SureServo2® System Selector
- SureStep® Linear Actuators
- Timing Belts & Pulleys
- Werma® Stacklights
- ZIPLinks
Frequency monitoring safety relays provide overspeed, underspeed or window monitoring for single- or three-phase motors, by monitoring frequency of the motor power signal.
This page will refresh momentarily.
Warning
Some of the selected facets have been selected by the {{ assistanceData.title }} Help.
Resetting/clearing ALL facets will end {{ assistanceData.title }} Help.
![Help icon]()
Selection Assistance - {{ assistanceData.title }}
Frequency Monitoring Safety Relays
Frequency monitoring safety relay modules monitor the output frequency of inverters or rotor frequency of slip-ring motors. Dold UH6937 series relays provide reliable detection of underspeed or overspeed conditions, or perform window monitoring.
- Can monitor motor voltages up to 690 VAC for standstill monitoring
- No external sensors necessary
- Independent of direction
- Broken wire detection
- 2 N.O. positively driven and 2 semiconductor outputs for monitoring
- LED status indicators
- Time delay settings available
Starting at
(UH6937-02PS-24)
For part listing and specifications, go to Shop Now
Safe &
Secure
We accept VISA, MasterCard, Discover, American Express, PayPal or company purchase orders.
Updating...