• General Electric UR 4DH
  • General Electric UR 4DH
  • General Electric UR 4DH
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General Electric Multilin UR 4DH Digital I/O Module

General Electric Multilin UR 4DH Digital I/O Module

The General Electric Multilin UR 4DH is a high-performance digital input/output module designed for the Universal Relay (UR) platform. This module significantly expands the relay's capability to interface with field...

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SKU: UR 4DH
Proveedora: General Electric
tipo: Digital I/O Module
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The General Electric Multilin UR 4DH is a high-performance digital input/output module designed for the Universal Relay (UR) platform. This module significantly expands the relay's capability to interface with field devices, providing essential monitoring, control, and protection functions for complex power system architectures.

Features

  • Designed specifically for the GE Multilin UR Series relay platform.
  • Supports high-density digital I/O configurations for comprehensive substation automation.
  • Flexible output options including Form-A, Form-C, fast-operating contacts, and solid-state relay (SSR) variants.
  • Integrated diagnostic capabilities for circuit continuity monitoring and current detection.
  • Robust design suitable for demanding utility and industrial environments.

Applications

  • Protection and control for large generators, including steam, gas, and hydro turbines.
  • Monitoring and protection for high-horsepower industrial motors and pumps.
  • Primary and backup protection for power transformers and distribution systems.
  • Complex busbar protection for low-voltage to extra-high-voltage switchgear.
  • Control and stability management for capacitor banks.
  • Electrical protection for oil and gas infrastructure and mining operations.

Technical Specifications

Model UR 4DH
Manufacturer General Electric
Module Type Digital I/O Module
Digital Inputs 16 (expandable per relay configuration)
Input Voltage Range 24V DC to 250V AC
Input Current Rating 5 mA
Response Time < 10 ms (state changes)
Operating Temperature -40 degC to +70 degC
Storage Temperature -40 degC to +85 degC
Humidity 5% to 95% non-condensing

Installation Guidelines

  • Ensure the main UR relay is powered down before attempting to insert or remove modules.
  • Access the internal module slots by loosening the screw on the hinged faceplate of the relay.
  • Apply steady pressure to the push pins to slide the module into the designated slot; ensure it is fully seated.
  • Wire digital inputs and outputs according to the specific wiring diagram provided in your relay's technical manual.
  • Maintain proper grounding practices and ensure shielded cabling is used for signal integrity in high-EMI environments.

FAQ

What is the primary function of the UR 4DH?

The UR 4DH serves as a digital I/O expansion module for the GE Multilin UR series, allowing the relay to interface with up to 96 inputs and 64 outputs for protection, interlocking, and control tasks.

Are the outputs configurable?

Yes, the module supports various output types, including Form-A, Form-C, fast-operating contacts, and solid-state relays (SSR) to accommodate specific application requirements.

What is the response time for the outputs?

Form-A outputs feature activation speeds of less than 4 milliseconds, providing high-speed tripping capabilities.