- AP430 monitors 3 Phases only, AP431 monitors 3 Phases and Neutral
- DIN rail mount.
- Fail-to-safe design.
- Monitoring on three phase supply.
- Sensitive to: NPS Voltage, Reverse phase sequence, loss of phase, phase imbalance, phase asymmetry.
- Insensitive to regenerated EMF.
- High stability under harmonic distortion
- Insensitive to balanced supply variations - prevents nuisance tripping
- Fast response to reversed phase sequence
- Adjustable NPS sensitivity.
- Power ON & Relay ON LED's.
- 10A SPDT or 5A DPDT relay output.