- Phase asymmetry relays PS2DK are used for the protection of electric motors against asymmetries in the 3-phase mains without neutral and for monitoring the phase-sequence.
- If there is a wrong phase-sequence when switching on the device, the relay does not pick up.
+ Monitoring of phase-asymmetry
+ Monitoring of phase-sequence
+ Adjustable sensitivity 5…25 %
+ Output-relay with 2 change-over contacts
+ Switching delay adjustable 0,1 … 5 s
+ LED for display state of operation
Thông số kỹ thuật
- Rated supply Voltage Us.......3-phase 380-415 V, without neutral
- Admissible tolerance.......+10%...-15%
- Power consumption.......app. 3 VA
- Frequency.......50/60 Hz
- Relay output.......2 change-over contacts
vType of contact.......type 2 see General technical informations
- Test conditions.......see General technical informations
- rated ambient temperature range.......-20°C...+55°C
- Switching point asymmetry.......adjustable 5...25%
- Hysteresis.......app. 2%
- Delay at phase-loss (< 240 V).......app. 0,2 s
- Switch-back delay at voltage recovery.......app. 0,5 s
- Switching-delay at asymmetry.......adjustable0,1...5 s
- Switching point at symmetric decrease of voltage.......not defined
- Dimensions (H x W x D).......Housing K: 75 x 22,5 x 115 mm
- Attachment.......on 35 mm DIN-rail or with screws M4 (option)
- Protection housing / terminals.......IP 30/20
- Weight.......150 g