Providing the Universal Relay series with Digital I/O Communications and an array of digital inputs and outputs, General Electric Multilin’s UR-4DH UR Module is invaluable for cutting out costly installation costs and extraneous connections.
The T60 accounts for scalable hardware, allowing users to upgrade their modules through the hinged faceplate that allows access to the module compartment. After removing the screw that normally keeps the faceplate firmly closed, users can remove modules by applying pressure to the push pins and then gently sliding the module out. Users should note which slot the old module was in, as modules can only be replaced by modules of a similar type.
The Digital I/O Communications supplied by the module allow the relay to communicate with other relays and subation equipment digitally, removing the need for auxiliary connections and communication methods. This communication is both high-speed and secure, increasing the overall cyber security of the unit without it coming at the cost of communication rates. By including so many capabilities in one compact unit, the Universal Relays series reduces user costs over time.
Digital outputs are provided by the module, which include types such as trip-rated Form A and Solid State Relay latching, and also Form-C outputs. Users can reference the Universal Relays series manuals for order codes that provide greater detail on the differences between different UR modules.
Frequently Asked Questions about UR-4DH
What role does a GE UR-4DH I/O Module play in the Multilin UR Series of universal relay systems?
A UR-4DH is a Multilin digital I/O module. A Digital I/O module can provide the universal relay with up to 96 contact inputs. The voltage for these contact inputs can be up to 250V (utility voltage rating). In addition to these contact inputs, the digital I/O module provides the relay with up to 64 contact outputs. These outputs are used to control or monitor aux equipment in an application that is protective in nature. The digital cards included in the digital I/O module can vary. They can be Form-A, Form-C, Latching, Fast Form-C, or solid state relay (SSR). These cards vary based on if they come with current monitoring, DC voltage, or isolate inputs. The isolated inputs come with an auto burnish feature. If the digital outputs of the digital I/O module are mechanical in the way that they latch then they gain the application of being able to form stable interlocking applications to replace lockout relays and mechanical switches. If the I/O module is form-A, then the digital outputs have less than 4ms activation speeds in wet or in dry contacts.
Key Features:
- Modular Design: The UR-4DH has a modular design that allows for easy customization and expansion according to specific needs and requirements.
- Comprehensive Protection: It provides comprehensive protection against a range of electrical faults, including overcurrent, undervoltage, overvoltage, reverse power, frequency variations, and more.
- Advanced Monitoring: The UR-4DH offers real-time monitoring of key electrical parameters such as voltage, current, power, frequency, and energy consumption.
- Flexible Control: Users can remotely control relay outputs, utilize programmable logic for specific functions, and perform data logging for analysis and reporting.
Technical Specifications:
- Voltage Options: It supports either 120V AC or 240V AC.
- Current Ratings: Users can choose between 20A or 40A configurations.
- Power Handling: It can handle power ratings of 2.4kW or 4.8kW.
- Frequency Compatibility: The UR-4DH is compatible with both 50Hz and 60Hz frequencies.
- Communication Interfaces: It supports communication via Ethernet, RS-485, and Modbus protocols.
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