Overview
Moreover, the UR-8NH integrates seamlessly into the Multilin UR architecture, which allows easy configuration and scalable relay functionality. Its modular structure simplifies maintenance, reduces downtime, and ensures long-term operational reliability in critical power environments.
Specification
| Parameter | Specification |
|---|---|
| Model Number | UR-8NH / UR8NH / UR 8NH |
| Manufacturer | GE Fanuc Multilin |
| Product Type | Universal Relay Module (CT/VT Interface) |
| Function | Voltage and current measurement input interface |
| Input Channels | 8 current or voltage inputs |
| Sampling Rate | 64 samples per cycle |
| Analog Input Range | ±10 V nominal |
| Input Frequency | 50 / 60 Hz nominal |
| Measurement Accuracy | ±0.2% typical |
| Isolation Voltage | 2.5 kV RMS (input to logic) |
| Communication Interface | Fiber-optic or copper backplane bus |
| Operating Voltage | 24–48 VDC from UR-RHH power module |
| Operating Temperature | −40°C to +85°C |
| Storage Temperature | −55°C to +105°C |
| Humidity | 5–95% non-condensing |
| Mounting | Plug-in module for UR chassis |
| Certifications | UL, CE, CSA, IEC 60255, RoHS compliant |
FAQ
A1: It captures and processes current and voltage input signals for relay protection and metering.
Q2: Is the UR-8NH compatible with all UR Series components?
A2: Yes, it integrates seamlessly with CPU, power supply, and I/O modules in the UR platform.
Q3: Can the module be replaced while the relay is active?
A3: Yes, its hot-swappable design allows safe replacement without system interruption.
Q4: What types of protection functions can it support?
A4: It supports transformer, generator, motor, and line protection schemes.
Q5: Does the UR-8NH require external power?
A5: No, it draws power from the UR-RHH power supply module through the relay backplane.
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