Datasheet

Mini Motor Contactor J7KNA 7
■ Engineering data and Characteristics
Mini Motor Contactors
Data according to IEC 947-4-1, VDE 0660, EN 60947-4-1
Main Contacts Typ e J7KNA-09-… J7KNA-12-…
Rated insulation voltage U
i
V AC 690
*1)
690
’1)
Making capacity I
eff
at U
e
= 690V AC A 165 165
Breaking capacity I
eff
400V AC A 100 100
cos = 0,65 500V AC A 90 90
690V AC A 80 80
Utilization category AC1
Switching of resistive load
Rated operational current I
e
(=I
th
) at 40°C, open A 20 20
Rated operational power of three-phase resistive loads 230V kW 7.9 7.9
50-60Hz, cos = 1 240V kW 8.3 8.3
400V kW 13.8 13.8
415V kW 14.3 14.3
Rated operational current I
e
(=I
the
) at 60°C, enclosed A 16 16
Rated operational power of three-phase resistive loads 230V kW 6.3 6.3
50-60Hz, cos = 1 240V kW 6.7 6.7
400V kW 11 11
415V kW 11.5 11.5
Minimum cross-section of conductor at load with I
e
(=I
th
) mm² 2.5 2.5
Utilization category AC2 and AC3
Switching of three-phase motors
Rated operational current I
e
220V A 12 15
open and enclosed 230V A 11.5 14.5
240V A 11 14
380-400V A 9 12
415-440V A 8 11
500V A 7 9
660-690V A 5 6.5
Rated operational power of three-phase motors 220-240V kW 3 4
50-60Hz 380-440V kW 4 5.5
500-690V kW 4 5.5
Utilization category AC4
Switching of squirrel cage motors, inching
Rated operational current I
e
220V A 12 15
open and enclosed 230V A 11.5 14.5
240V A 11 14
380-400V A 9 12
415-440V A 8 11
500V A 7 9
660-690V A 5 6.5
Rated operational power of three-phase motors 220-240V kW 3 4
50-60Hz 380-440V kW 4 5.5
500-690V kW 4 5.5