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ABB MOTOR PROTECTION AND CONTROL 3/207

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EK550 ... EK1000 4-pole contactors
Technical data

Magnet system characteristics 03
Contactor types AC operated EK550 EK1000
Coil operating limits AC supply At θ ≤ 70 °C 0.85 x Uc min...1.1 x Uc max.
acc. to IEC 60947-4-1 Please also refer to "Mounting characteristics and conditions for use"
AC control voltage
Rated control circuit voltage 50 Hz 48...500 V
60 Hz 110...600 V
Coil consumption Average pull-in value 50 Hz 3500 VA
60 Hz 4000 VA
50/60 Hz (1) 3800 / 3400 VA
Average holding value 50 Hz 125 VA / 50 W
60 Hz 140 VA / 60 W
50/60 Hz (1) 140 VA /60 W
Drop-out voltage in % of Uc min. approx. 45...65 %
Operating time
Between coil energization and: N.O. contact closing 30...60 ms
N.C. contact opening 25...55 ms
Between coil de-energization and: N.O. contact opening 10...20 ms
N.C. contact closing 13...23 ms
(1) "A" coil voltage: see "Coil voltage code table".

Magnet system characteristics
Contactor types DC operated EK550 EK1000
Coil operating limits DC supply At θ ≤ 70 °C 0.85 x Uc min...1.1 x Uc max.
acc. to IEC 60947-4-1 Please also refer to "Mounting characteristics and conditions for use"
DC control voltage
Rated control circuit voltage 24...220 V
Coil consumption Average pull-in value 1100 W
Average holding value 20 W
Drop-out voltage approx. 15...50 % of Uc min.
Coil time constant
Open L/R 12 ms
Closed L/R 60 ms
Operating time
Between coil energization and: N.O. contact closing 60...80 ms
N.C. contact opening 55...75 ms
Between coil de-energization and: N.O. contact opening 10...35 ms
N.C. contact closing 13...38 ms

Mounting characteristics and conditions for use
Contactor types AC / DC operated EK550 EK1000
Mounting positions Position 2

Position 4 ABB ABB

ABB +30 -30
Position 5
Position 3
ABB
E1863D1
Position 6
Position 1 Position 1 30
Max. N.O. or N.C. built-in and add-on N.O. or N.C. auxiliary contacts:
see accessory fitting details for 4-pole contactor EK550, EK1000
Control voltage / Ambient temperature
Mounting 1, 1±30°, 2, 3, 4, 5 at θ ≤ 70 °C 0.85…1.1 x Uc
positions 6 at θ ≤ 70 °C Unauthorized
Mounting distances The contactors can be assembled side by side
Fixing
On rail according to IEC 60715, EN 60715 –
By screws 4 x M6 (2)
(2) Damping elements are supplied.