UR9WH | GE Multilin Relay CPU Module for Utility Systems

GE Multilin UR9WH CPU Module – Product Description

Overview

The GE Multilin UR9WH CPU Module is the central processing unit for UR series protection relays, delivering reliable logic execution and real-time control in industrial and utility environments. It provides high-speed computation for feeder, generator, transformer, and motor protection. Moreover, its modular design ensures easy integration, replacement, and system scalability.

Technical Specifications

Processor & Memory:

• Industrial-grade microprocessor for real-time protection

• Flash memory for firmware storage

• RAM for operational data handling

Power Supply:

• DC: 24–48 VDC

• AC: 110/220 VAC

Communication Ports:

• 3 × Ethernet ports (10/100/1000Base-T)

• 1 × RS‑485 serial port

Environmental Ratings:

• Operating temperature: –20 °C to +70 °C

• Storage temperature: –40 °C to +85 °C

Physical Dimensions & Weight:

• Thickness: 38 mm (standard UR module size)

• Weight: 200 g

FAQ

Q1: Which UR relay models are compatible with the UR9WH CPU?
It is compatible with all UR series protection relay chassis for feeders, generators, and motors.

Q2: What power supply options does this module support?
The CPU supports 24–48 VDC and 110/220 VAC industrial power ranges.

Q3: How many communication ports are available?
Three Ethernet ports and one RS‑485 serial port allow redundant and SCADA-ready networking.

Q4: Can it operate in harsh environments?
Yes, it functions reliably from –20 °C to +70 °C for demanding substation conditions.

Q5: Is the module suitable for system upgrades?
Absolutely. Its modular design enables straightforward replacement and chassis integration.