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ABB MOTOR PROTECTION AND CONTROL 3/283

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NF..K contactor relays - with Push-in Spring terminals
Technical data

Magnet System Characteristics for NF..K contactor relays - AC / DC operated
03
Contactor relay types AC / DC operated NF..K
Coil operating limits AC supply at θ ≤ 60 °C 0.85 x Uc min ... 1.1 x Uc max
acc. to IEC 60947-5-1 at θ ≤ 70 °C 0.85 x Uc min ... Uc max
DC supply At θ ≤ 60 °C 0.85 x Uc min ... 1.1 x Uc max
At θ ≤ 70 °C 0.85 x Uc min ... Uc max
AC control voltage 50/60 Hz
Rated control circuit voltage Uc 24 ... 500 V AC
Coil consumption Average pull-in value 50 VA
Average holding value 2.2 VA / 2 W
DC control voltage
Rated control circuit voltage Uc 20 ... 500 V DC
Coil consumption Average pull-in value 50 W
Average holding value 2 W
PLC-output control Not suitable for direct control by PLC-output
Drop-out voltage ≤ 60 % of Uc min.
Voltage sag immunity according to SEMI F47-0706 –
Dips withstand –
-20 °C ≤ θ ≤ +60°C
Operating time
Between coil energization and:
N.O. contact closing 40 ... 95 ms
N.C. contact opening 38 ... 90 ms
Between coil de-energization and:
N.O. contact opening 11 ... 95 ms
N.C. contact closing 13 ... 98 ms
Magnet System Characteristics for NFZ..K contactor relays 24V DC operated - designed for PLC - coil 30
Contactor relay types AC / DC operated NFZ..K
Coil operating limits DC supply At θ ≤ 60 °C 0.85 ... 1.1 x Uc
acc. to IEC 60947-5-1 At θ ≤ 70 °C Uc
DC control voltage
Rated control circuit voltage Uc 24 V DC
Coil consumption Average pull-in value 6 W
Average holding value 1.7 W
PLC-output control ≥ 250 mA 24 V DC for PLCs and safety PLCs using broken wire detection
Drop-out voltage ≤ 60 % of Uc min.
Operating time
Between coil energization and:
N.O. contact closing 27 … 53 ms
N.C. contact opening 20 … 35 ms
Between coil de-energization and:
N.O. contact opening 17 … 29 ms
N.C. contact closing 22 … 57 ms
Magnet System Characteristics for NFZ..K contactor relays - for specific applications - coils 20, 21, 22, 23
Contactor relay types AC / DC operated NFZ..K
Coil operating limits AC supply At θ ≤ 60 °C 0.85 x Uc min ... 1.1 x Uc max
acc. to IEC 60947-5-1 At θ ≤ 70 °C 0.85 x Uc min ... Uc max
DC supply At θ ≤ 70 °C 0.85 x Uc min ... 1.1 x Uc max
AC control voltage 50/60 Hz
Rated control circuit voltage Uc 24 ... 250 V AC
Coil consumption Average pull-in value 16 VA
Average holding value 1.7 VA / 1.5 W
DC control voltage
Rated control circuit voltage Uc 12 ... 250 V DC
Coil consumption Average pull-in value 12 ... 16 W
Average holding value 1.7 W
PLC-output control (AF..Z coil 21) ≥ 500 mA 24 V DC for PLCs - Not suitable for safety PLCs
Drop-out voltage ≤ 60 % of Uc min.
Voltage sag immunity according to SEMI F47-0706 (NFZ coil 21, 22, 23) conditions of use on request
Dips withstand
-20 °C ≤ θ ≤ +60°C (NFZ coil 21, 22, 23) 20 ms average for Uc ≥ 24 V 50/60 Hz or Uc ≥ 20 V DC
Operating time
Between coil energization and:
N.O. contact closing 40 ... 95 ms
N.C. contact opening 38 ... 90 ms
Between coil de-energization and:
N.O. contact opening 11 ... 95 ms
N.C. contact closing 13 ... 98 ms