NDZ3AT Series DC Contactor
Updated：July 17,2026 17:55PM
The NDZ3AT-120~250 series of DC contactors apply to the DC system with the working voltage of DC750V and working current of 120~250A.The NDZ3AT-150R~400R DC contactors apply to the DC system with the working voltage of DC1000V and working current ofl50A-400A.The NDZ3AT-25010~50010 series of DC contactors apply to the DC system with the working voltage of DC1500V and working current of 250~500A.The NDZ3AT-60010 series of DC contactors apply to the DC system with the working voltage of DC1500V and working current of 600A which are mainly used in electric vehicles chargingpilescharging stations and other fields.
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Features of NDZ3AT Series
- Mainly used in electric vehicles, charging piles,charging stations and other fields
Technology data of NDZ3AT Series
| Parameter name | Description of the specific parameters | |||||
| Product model | NDZ3AT-120 | NDZ3AT-150C | NDZ3AT-150B | NDZ3AT-200B | NDZ3AT-200 | NDZ3AT-250 |
|
Rated current (A) |
120A | 150A | 150A | 200A | 200A | 250A |
| Load polarity | With polarity | With polarity | With polarity | With polarity | With polarity | With polarity |
| Coil polarity | Without polarity | Without polarity | Without polarity | Without polarity | Without polarity | Without polarity |
|
Number of poles |
Single pole | |||||
|
Rated voltage DC(V) |
450V/750V | |||||
| Insulation voltage Ui | 1000V | |||||
|
Type of circuit |
DC | |||||
| Rated control voltage Us |
DC12、24V Pull-in voltage:75%~110%Us Discharge voltage:10%~60%Us |
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|
Pull-in/discharge time(rated voltage 20℃): |
Pull-in:≤30ms Discharge:≤10ms |
Pull-in:≤30ms Discharge:≤10ms |
Pull-in:≤30ms Discharge:≤10ms |
Pull-in:≤30ms Discharge:≤10ms |
Pull-in:≤50ms Discharge:≤30ms |
Pull-in:≤50ms Discharge:≤30ms |
| Parameter name | Description of the specific parameters | |||||
| NDZ3AT-150R | NDZ3AT-200R | NDZ3AT-250R | NDZ3AT-300R | NDZ3AT-350R | NDZ3AT-400R | |
|
Number of poles |
Single pole | |||||
|
Type of circuit |
DC | |||||
| Contact form | 1NO | |||||
| Contact material | Copper Alloy | |||||
| Rated current | 150A | 200A | 250A | 300A | 350A | 400A |
| Operating voltage range | DC12V~DC1000V | |||||
| Min Applicable Load | 12V1A | |||||
| Contact Resistance(20℃) | ≤0.5m Ω(at Ie) | |||||
| Mechanical life | 200,000 times,frequency:3,600 times/h | |||||
| Electrical life (on 1s off 9s)resistive load | DC1000V 150A | DC1000V 200A | DC1000V 250A | DC1000V 300A | DC1000V 350A | DC1000V 400A |
| Time constant 0.2ms | 1000 times | 1000 times | 1000 times | 1000 times | 300 times | 50 times |
| Maximum breaking current:(on 0.6s) | DC320V2000A 1 times | |||||
| Short-time withstand current: |
2000A 600ms、 1200A 1s、 300A 1min、200A 10min、 |
2000A 1s、 300A 10min、 400A 1min、 |
2000A 1s、 600A 90s、 450A 5min、 |
2000A 1s、 600A 90s、 450A 5min、 |
2000A 1s、 600A 90s、 500A 5min、 |
2000A 1s、 600A 90s、 500A 5min、 |
| Parameter name | Description of the specific parameters | |||
| NDZ3AT-25010H | NDZ3AT-35010H | NDZ3AT-40010H | NDZ3AT-50010H | |
| Load polarity | Without polarity | Without polarity | Without polarity | Without polarity |
| Coil polarity | With polarity | With polarity | With polarity | With polarity |
|
Number of poles |
Single pole | |||
|
Rated current (A) |
250A | 350A | 400A | 500A |
| Insulation voltage Ui | 1500V | |||
|
Rated voltage DC(V) |
1500V | |||
| Type of circuit | DC | |||
| Rated control voltage Us |
DC12V、DC24V Operate Voltage.≤9V(DC12V)、≤18V(DC24V) Discharge voltage:≥1.2V(DC12V)、≥2.4V(DC24V) |
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| Parameter name | Description of the specific parameters |
| NDZ3AT-60010H | |
| Rated current(A) | 600A |
| Contact polarity | Without polarity |
| Operating voltage range | DC12~DC1500V |
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