NDZ3AT-250C Series DC Contactor, Nader

Rated current (A)

250A

Rated voltage Ue (V)

DC750V

Main Circuit Polarity

None

Insulation voltage Ui (V)

DC1000V

Control Coil

Rated voltage Ui (V)

DC12V, DC24V

Operating Voltage

75%~110% Uc

Drop-out Voltage

10%~60% Uc

Coil Polarity

None

Turn-on Time (20°C, Rated Voltage)

≤30ms

Turn-off Time (20°C)

≤10ms

Coil Power Consumption (20°C)

6W

Installation position torque

M5 screw(3~4N.m)

Wiring terminal torque

M6 screw(6~8N.m)

Certificates

/

Mechanical life

200000 times, frequency 3600 times/h

Electrical life (Make 0.6s/Break 5.4s)

Making

DC20V 140A 75000times

Breaking

DC450V 250A 1000times

DC750V 250A 500times

Maximum breaking current

DC450V 2000A

DC500V 1800A

DC750V 1500A

Once

Short-circuit withstand current

8000A 5ms (No burning, no exploding)

1000A 20s

900A 25s

500A 120s

350A 8min

Contact Resistance (at Rated Current)

≤0.5mΩ

Insulation resistance

1000mΩ, DC1000V

Dielectric Strength

·Between open contacts: AC3000V for 1min (leakage current ≤1mA) ·Between contacts and coil: AC3000V for 1min (leakage current ≤1mA)

Shock Resistance

·Stability: 60g (ON state), 20g (OFF state) (half-sine pulse: 11ms, detection time 10μs)

·Destruction: 60g

(half-sine pulse: 11ms)

Vibration Resistance

10~500Hz 5g

Product Weight

Approx. 400g

Normal Working Environment

·Operating environment：-40~85℃

·Operating humidity：5%~95%

·Pollution level：3

Installation Mode

Screw mounting

Environmental Compliance

Comply with the RoHS directives