Page 431 - Motor_protection_and_control_Manual_motor_starters_ contactors

EK550 ... EK1000 4-pole contactors

Technical data

Connecting characteristics
Contactor types AC or DC operated EK550 EK1000
Main terminals 15 40
Flat type 4.5 8

E1864D E1868D
ø 6.6 ø 11
Connection capacity (min. ... max.)
Main conductors (poles)
Rigid with Cu cable 1 x 70...300 mm² -
connector Al/Cu cable 1 x 70...300 mm² 95...300 mm²
Al/Cu cable 2 x 35...185 mm² 95...300 mm²
Bars or lugs L ≤ 55 mm
ø L
Ø > 10 mm
Connection capacity acc. to UL/CSA 1 or 2 x 3 x 4 - 500 MCM - 5
Tightening torque Recommended 18 Nm / 160 Ib.in
Max. 22 Nm
Auxiliary conductors
(coil terminals)
Rigid solid 1 x 0.5…2.5 mm²
2 x 0.5…2.5 mm²
Flexible with ferrule 1 x 0.5…2.5 mm²
2 x 0.5…2.5 mm²
Bars or lugs L ≤ 8 mm
l L
l > 3.7 mm
Connection capacity acc. to UL/CSA 1 or 2 x 18…14 AWG
Tightening torque Recommended 1.00 Nm / 9 lb.in
Max. 1.20 Nm
Degree of protection
acc. to IEC 60947-1 / EN 60947-1 and IEC 60529 / EN 60529
Main terminals IP00
Coil terminals IP20
Screw terminals
Main terminals M10
Screws and bolts
Coil terminals (delivered in open positions) M3.5
Screwdriver type Flat Ø 5.5 mm / Pozidriv 2

1SFC101214C0201

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