DWA01 and PWA01 are precise over or under cos ϕ monitoring relays. The relays monitor their own power supply voltage and the current of a balanced 3-phase system. For current measure direct connection, 5A standard current transformers and MICT can be used. The LED's indicate the state of the alarm and the output relay.
General Characteristics
Cos ϕ monitoring relays.
Measuring if power factor is within set limits.
Measure their own power supply (voltage) and current for balanced systems.
Measuring ranges for current: 5A and MI current transformers range.
Power ON delay 1, 2 or 6 s selectable.
Knob adjustable level on absolute scale.
Output: 8 A SPDT relay Normally Energized.
For mounting on DIN-rail in accordance with DIN/EN 50 022 (DWA01) or plug-in module (PWA01).
22.5 mm Euronorm housing (DWA01) or 36 mm plug-in module (PWA01).