UR8HH GE multilin UR Module

Description

GE UR8HH (UR Series CT/VT Input Module)
Technical Parameters
Brand GE (General Electric / GE Multilin)
Model UR8HH
Series UR Series Universal Relays
Type CT/VT Input Module
Dimensions UR‑series standard slot‑mount; approx. 100 mm (W) × 177 mm (H) × 25 mm (D)
Weight Approx. 1.16 kg (2.55 lb)
Country of Origin Markham, Ontario, Canada

Operating Temperature -40°C to +70°C
Storage Temperature -40°C to +85°C
Phase CT Inputs 3 channels; 1A / 5A nominal; isolated
Ground CT Inputs 1 channel; 1A / 5A nominal; isolated
Input Isolation 2.5 kV RMS (channel‑to‑channel & channel‑to‑ground)
Accuracy ±0.2% (current measurement)
Burden <0.1 VA per channel at rated current
Power Supply Powered by UR‑series relay backplane; 24 V DC nominal
Communication Backplane communication with UR‑series CPU modules; no standalone ports
Protection Rating IP20 (front), IP10 (rear)
Certifications IEC 60255, IEEE C37.90, UL, CSA, CE
Key Features
Dedicated Current Sensing: Provides 3 phase CT inputs and 1 ground CT input, all supporting 1A/5A nominal for comprehensive current monitoring.
High Isolation & Accuracy: 2.5 kV isolation and ±0.2% measurement accuracy ensure reliable, noise‑free signal acquisition in harsh industrial environments.
UR‑Series Compatibility: Seamlessly integrates with all UR‑series universal relays (e.g., T60, F60, L60) for protection, control, and metering applications.
Low Burden Design: Minimal input burden (<0.1 VA) preserves CT accuracy and reduces system loading.
Robust Signal Conditioning: Built‑in filtering and overcurrent protection safeguard against transient disturbances and fault conditions.
EnerVista UR Software Support: Fully configurable via GE’s EnerVista UR software for calibration, scaling, and diagnostics.

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