Overview
Specification
| Parameter | Specification |
|---|---|
| Model | UR‑9KH / UR9KH CPU Module |
| Series | GE Multilin Universal Relay (UR Series) |
| Function | Central processing unit for protection & control logic |
| Processor | 32‑bit RISC high‑performance CPU |
| Memory | 256 MB Flash / 128 MB RAM |
| Communication Ports | 1× Ethernet 10/100Base‑T (RJ‑45), 1× RS‑485 |
| Supported Protocols | Modbus RTU/TCP, IEC 61850 (optional) |
| Input Ratings (I/O) | Current: 1 A / 5 A, Voltage inputs: 100 V / 120 V / 230 V |
| Control Power Supply | 24 V DC / 48 V DC / 110 V DC / 220 V AC |
| Power Consumption | ~20 W typical |
| Operating Temperature | ‑40 °C to +70 °C |
| Storage Temperature | ‑55 °C to +85 °C |
| Humidity | Up to 95 % non‑condensing |
| Enclosure / Protection Rating | IP20 industrial enclosure |
| Dimensions | ~160 mm × 100 mm × 60 mm (6.3” × 3.9” × 2.4”) |
| Weight | ~1.2 kg |
| Certifications | CE, UL, RoHS, IEC 61508 SIL 2 |
| Redundancy | Optional CPU redundancy with bumpless transfer |
| Event Recording | Up to 8,000 events timestamped |
FAQ
It supports Modbus and Ethernet for integration with UR series relays.
Q2: Can the module operate in harsh environments?
Yes, it functions reliably from -20°C to +70°C and high humidity.
Q3: Is firmware upgrade supported?
Yes, the non-volatile memory allows firmware updates without system disruption.
Q4: Does it support redundant CPU configurations?
Yes, optional redundancy enhances system reliability and fault tolerance.
Q5: What mounting options are available?
It supports both DIN rail and panel mount installations.
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