Description
Output type: Electromechanical relay contact, single‑pole normally open (1NO)
Resistive load capacity: 25A @250V AC
Inductive load capacity: 4A @250V AC
Maximum contact voltage: 250V AC / 30V DC
Galvanic isolation: ≥2.5 kV between control circuit and load circuit
Control logic supply: 18‑30 V DC
Power consumption: ≤5 W
Switch response time: ≤10 ms
Mechanical lifetime: ≥10 million operations
Electrical lifetime: ≥100 000 operations under full‑rated load
Mounting: Plug‑in slot installation inside REF54 series protection relay
Operating temperature: −25 ℃ ~ +70 ℃
Storage temperature: −40 ℃ ~ +85 ℃
Humidity: 5‑95 %RH non‑condensing
Vibration & shock: Complies with IEC 60255‑21‑1 / IEC 60255‑21‑2
Weight: approx 1.52 kg
Certifications: CE, UL, IEC 61810 approval
Receive internal logic commands from protection IED, output isolated relay dry‑contact signals. Realize circuit‑breaker tripping & closing control, remote alarm output and interlock logic drive. Built‑in self‑diagnosis function, module fault status can be reported to main protection unit. Output contact configuration can be set via relay local HMI or CAP505 PC engineering tool.
Plug directly into corresponding rear slot of REF54 series protection device, ensure full insertion and tighten fixing screws. When wiring trip‑coil loop, strictly follow relay contact load parameters. After replacement, download protection setting parameters and perform channel action test. Confirm auxiliary power supply within 18‑30 V DC range.
Feeder protection and transformer protection inside REF541 / REF543 / REF545 protection relays. Widely used in power plants, industrial power distribution systems and high‑voltage substation secondary protection systems for breaker control and fault alarm output.
- Dedicated plug‑in binary output relay module for ABB REF54x protection series, high‑power relay contact design.
- 2.5 kV galvanic isolation, outstanding anti‑interference performance, meets substation secondary‑circuit requirements.
- Long mechanical and electrical service life, supports heavy‑load drive for breaker trip‑close coils.
- Module self‑diagnosis, fault status uploading to main protection unit.
- Direct slot‑in replacement without extra mounting accessories, convenient for site maintenance.
- Industrial spare‑part for maintenance and retrofitting of legacy REF54 series protection devices.
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