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GE Multilin UR81H Process Bus Module
GE Multilin UR81H Process Bus Module
Manufacturer: GE
Product No.: UR81H
Product Type: Process Bus Module
Product Origin: USA
Payment: T/T
Weight: 1150g
Shipping port: Xiamen
Warranty: 12 months
Product Description
The GE Multilin UR81H is an IEC 61850-based Process Bus Module designed for the GE Multilin Universal Relay (UR) series. It provides an eight-port digital process bus interface enabling modern digital substation architectures where CT/VT measurement and sampled-value streams are communicated over Ethernet instead of conventional copper wiring. The module enhances protection, control, metering, and automation by delivering precise digitization of analog signals (from CTs/VTs) into IEC 61850 sampled values, supporting advanced protection applications in industrial and utility environments. Its modular, hot-swappable design reduces downtime during maintenance and system upgrades, and it supports IEEE 1588 time synchronization plus cybersecurity features aligned with industry standards.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | UR81H |
| Series | GE Multilin UR (Universal Relays) |
| Product Type | IEC 61850 Process Bus Module |
| Protocol Support | IEC 61850 Sampled Values (Ed. 2) |
| Process Bus Ports | 8-port digital process bus interface |
| Time Synchronization | IEEE 1588 Precision Time Protocol (PTP) |
| Cybersecurity | CyberSentry™ features for secure operation (e.g., NERC CIP compliance) |
| CT Input Rating | 1 A or 5 A selectable |
| VT Input Range | ~60 V to 240 V AC/DC (model dependent) |
| Analog Inputs | Up to 12 (4 I + 4 V + 4 RTD/mA) (model dependent) |
| Digital Inputs | Multiple, model dependent |
| Relay Outputs | 8–16 high-speed or standard outputs (model dependent) |
| Auxiliary Power | 24–250 V DC or 85–265 V AC/DC (varies by configuration) |
| Dimensions | 221 × 109 × 109 mm (approx.) based on module footprint |
| Weight | 1.15 kg (module) |
| Manufacturing Origin | Markham, Ontario, Canada |
| Warranty | 12 months standard |
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