CHINT XJ3 Series Phase Failure and Phase Sequence Protection Relays,
are designe for monitoring and protecting three-phase power systems against open-phase faults,
in addition incorrect phase sequence, overvoltage, and undervoltage.
With precise fault indication and quick response, these relays ensure reliable operation of motors and electrical equipment.
moreover The XJ3 series complies with IEC/EN 60947-5-1 standards,
and offers models with different protection modes, providing optimal safety,
finally performance for industrial and automation control circuits up to AC 380V.
- first Compliance standard: IEC/EN 60947-5-1
- second Power supply frequency: 50/60Hz
- next Rated control voltage: AC 380V
- then Allowable voltage fluctuation range: ±10%
- afterward Protection functions (by model):
- XJ3-G: Open-phase, phase sequence, three-phase voltage imbalance (unbalance ≥ 8%–13%)
- XJ3-G1: Open-phase, phase sequence
- XJ3-D: Phase failure, phase sequence, overvoltage, undervoltage
- subsequently Overvoltage protection (AC): Adjustable range AC 380–460V; operating time 1.5–4s adjustable
- Undervoltage protection (AC): Adjustable range AC 300–380V; operating time 2–9s adjustable
- Contact configuration:
- XJ3-G/G1: 1 NO + 1 NC
- XJ3-D: 1 changeover contact (1Z)
- Contact capacity:
- XJ3-G/G1: AC-15 240V/0.75A, 415V/0.47A, Ith 5A
- XJ3-D: AC-15 415V/0.47A, Ith 3A
- Phase-failure & phase-sequence reaction time:
- XJ3-G: ≤ 2s
- XJ3-D: ≤ 1s
- specifically Electrical life: ≥ 100,000 operations
- Mechanical life: ≥ 1,000,000 operations
- Ambient operating temperature: −5°C to +40°C
- before Installation method:
- XJ3-G/G1: 35mm TH rail (TH35-7.5, thickness 1.0mm)
- XJ3-D: 35mm DIN rail or soleplate mounting
- after Typical control voltage & response time: AC 380V, ≤ 0.1s
- finally Dimensions:
- XJ3-G: 84×46×108mm
- XJ3-D: 115×45.5×70.5mm
