Page 754 - Motor_protection_and_control_Manual_motor_starters_ contactors

EF205, EF370 electronic overload relays – 63 to 380 A

Technical data

General data
Type EF205 EF370
Pollution degree 3
Phase loss sensitive Yes
Ambient air temperature
Operation Open - compensated -25 ... +70 °C
Storage -50 ... +85 °C
Ambient air temperature compensation Acc. to IEC/EN 60947-4-1
Maximum operating altitude permissible 2000 m
Resistance to shock acc. to IEC 60068-2-27 25g / 11 ms
Resistance to vibrations acc. to IEC 60068-2-6 5g / 3 … 150 Hz
Mounting position Position 1-6
Mounting Mount on the contactor and tighten the screws
of the main circuit terminals
Degree of protection Housing IP20
Main circuit terminals IP20

Electrical connection
Main circuit
Type EF205 EF370
Connecting capacity
7 Rigid 1 x 16 ... 185 mm² 50 ... 240 mm²
2 x 16 ... 120 mm² 50 ... 150 mm²
Flexible 1 x 16 ... 185 mm² 50 ... 240 mm²
2 x 16 ... 120 mm² 50 ... 150 mm²
Lugs L ≤ 24 mm 32 mm
Bars Ø > 8 mm 10 mm
Stranded acc. to UL/CSA 1 x AWG 6-0000 AWG 1-500 kcmil
2 x AWG 6-0000 AWG 1-500 kcmil
Flexible acc. to UL/CSA 1 x AWG 6-0000 AWG 1-500 kcmil
2 x AWG 6-0000 AWG 1-500 kcmil
Stripping length - -
Tightening torque 18 Nm / 160 lb.in 28 Nm / 247 lb.in
Recommended screw driver M8 M10

Auxiliary circuit
Type EF205, EF370
Connecting capacity
Rigid 1 or 2 x 1 ... 4 mm²
Flexible with ferrule 1 or 2 x 0.75 ... 2.5 mm²
Flexible with insulated ferrule 1 or 2 x 0.75 ... 2.5 mm²
Flexible 1 or 2 x 0.75 ... 2.5 mm²
Stranded acc. to UL/CSA 1 or 2 x AWG 18-10
Flexible acc. to UL/CSA 1 or 2 x AWG 18-10
Stripping length 9 mm
Tightening torque 0.8 ... 1.2 Nm / 7 ... 11 Ib.in
Recommended screw driver M3.5 (Pozidriv 2)

²CDC107040C0²01

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