1. UR8FH in one sentence
UR8FH is a 4-channel CT/VT synchronous-measurement card for GE Multilin UR relays. One slot delivers 64 samples/cycle, ±0.1° phase accuracy and streams data over IEC 61850-9-2LE or Modbus-TCP—protection, metering and power-quality in one go.
2. Plug-and-play compatibility at a glance
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UR family
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Free slots for UR8FH
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On-board protocol
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Typical application
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F650
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1–3
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Modbus-TCP
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Feeder protection + PQ
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T60
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2–4
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IEC 61850
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Transformer differential
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B90
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1–8 (redundant)
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PRP/HSR ring
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Bus-bar impedance
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3. Core specifications
· 4 independently configurable CT/VT inputs, 50/60 Hz auto-detect
· 0.2 S class metering, 0.5 % FS accuracy from –40 °C to +85 °C
· 2.5 kV channel-to-channel isolation; 4 kV surge withstand
· Burden: <0.15 VA (CT) | <0.05 VA (VT) – keeps site error budget low
· Built-in delta-wye math & magnitude/phase up to the 63rd harmonic
· Firmware upgrade via UR front port; no recalibration required
4. Head-to-head: UR8FH vs. UR8CH
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Key point
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UR8FH
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UR8CH
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Channel count
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4 CT/VT
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8 CT/VT
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Phase accuracy
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±0.1°
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±0.2°
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Harmonics
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63rd
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15th
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Slot consumption
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1
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1
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Sweet-spot use
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High-precision PQ / synchro-check
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Cost-effective over-current
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5. Field success snapshots
· 500 kV smart substation, Shanxi: replaced legacy PMU cards, cut annual outage by 120 h
· Offshore platform, South China Sea: 3×UR8FH inside T60 for 4-wdg transformer, saved one 19" rack
· EV charger plant: harmonic trending to IEC 61000-3-6, pass-rate rose from 92 % to 99 %
6. One-line ordering
Email “UR8FH qty + target UR model” to ab@mooreplc.com (attn. May)
We’ll bounce back within 24 h with price, lead-time, DHL tariff code and a one-click PI—no spam calls, just stock and docs.
What happens next?
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Your quote
You’ll get a fully customized quote to fit your unique needs.
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