Application-Based Selection
Contactors are used in industrial machinery, motor control systems and power control assemblies. Model suitability depends on the electrical load, switching frequency and system design.
PRODUCT LINE / CUSTOM SOLUTIONS / TECHNICAL SUPPORT
OEM & Custom Solutions
Explore product specifications, application requirements and customization options for your equipment.
FOR OEMS / REF 07
MZJ-400D/24.48A Contactor
This series of products features one normally open contact with a load current rating of 400 A. It offers a simple structure and reliable performance, making it suitable for programmable power supplies, uninterruptible power supply (UPS) systems, forklifts, electric vehicles, sightseeing vehicles, and construction machinery, among other applications.
- Application-based electrical specification review
- Electrical and mechanical compatibility
- Technical discussion for OEM requirements
- Sample evaluation and bulk sourcing coordination
Industrial Contactor Specifications
Confirm the load type, contact and coil voltages, switching duty and mounting requirements.
MZJ-400D/24.48A Contactor
- Rated contact voltage
- 48 V DC
- Rated contact current
- 400 A
- Rated coil voltage
- 24 V DC
| Product Model | MZJ-400D/24.48A | |||
|---|---|---|---|---|
| Rated voltage of contact circuit (V DC) | 48 | |||
| Rated current of contact circuit (A) | 400 | |||
| Rated coil voltage Ue (V DC) | 24 | |||
| Operating voltage in cold state (V) | Maximum pickup voltage at (20±5)℃ | 16.8 | ||
| Minimum release voltage at (20±5)℃ | 2.4 | |||
| Maximum cold-start inrush current at (20±5)℃ (A) | 0.42 | |||
| Maximum cold-start inrush current at (20±5)℃ (A) (duplicate as in original) | 0.42 | |||
| Coil voltage fluctuation range | ±20% | |||
| Contact voltage drop (mV) | ≤80 | |||
| Insulation resistance (MΩ) | ≥20 | |||
| Dielectric test voltage | Between open contacts | 2500V AC（1min） | ||
| Between closed contacts and coil | 2500V AC（1min） | |||
| Maximum operating time at rated voltage (without coil suppression or freewheeling diode) | Pick-up | 50ms | ||
| Release | 50ms | |||
| Maximum contact bounce time on opening | 5ms | |||
| Maximum switching capacity of main contacts | Make-and-break once at 4 times rated load current, with 5 ms energization time | |||
| Electrical life at rated voltage (cycles) | 10，000 | |||
| Mechanical life (cycles) | 100，000 | |||
| Operating specification / Duty cycle | Continuous duty (continuous operation) | |||
| Product Model | MZJ-400D/24.48A |
|---|---|
| Ambient Temperature | -4 0℃ ～ +7 0℃ |
| Relative Humidity | 98% at 20℃ |
| Vibration | 1～50 Hz (for frequency 1～10 Hz, amplitude 25/f²; for frequency 10～50 Hz, amplitude 250/f²) |
| Shock | 30m/s |
| Mounting Method | Any orientation |
| Degree of Protection | IP40 (in accordance with GB14048.4, equivalent to IEC60947) |
Please refer to the technical datasheet for the exact ratings and operating conditions of each model.
TECHNICAL DRAWINGS
Drawings & diagrams
Open a figure to inspect the dimensions and configuration details.
Designed Around Your
Equipment Requirements
Electrical and Mechanical Compatibility
Confirm the load type, contact and coil voltages, switching duty and mounting requirements.
OEM and Customization Support
Discuss your application, technical parameters and installation constraints with our team. Available options depend on the product platform, engineering feasibility and order requirements.
Industrial Contactor
Applications
- Industrial machinery and equipment
- Motor control and electrical control panels
- Power switching and distribution systems
- OEM equipment development
- Application-specific electrical assemblies
Contactors are used in industrial machinery, motor control systems and power control assemblies. Model suitability depends on the electrical load, switching frequency and system design.
OEM Industrial Contactor
Sourcing
For equipment manufacturers, consistent specifications and reliable supply arrangements are important throughout the product lifecycle.
When evaluating a supplier, consider technical documentation, sample verification, production consistency, customization feasibility and long-term sourcing requirements.
Industrial contactor selection guide ↗FAQ
Frequently
Asked
Questions
Discuss your requirements
Send us your specifications, drawings or existing part number to discuss product suitability, customization feasibility and quotation requirements.
Request a quoteWhat should I check before selecting this contactor?
Confirm the load type, contact and coil voltages, switching duty and mounting requirements.
Can I request a customized contactor?
Customization depends on the model and technical requirements. Share your specifications or drawings so the feasibility of your requested configuration can be reviewed.
Can I request samples before bulk purchasing?
Sample availability, cost and lead time should be confirmed for the selected model before placing an order.
What information is needed for a quotation?
Provide the model number, required quantity, electrical specifications, intended application and any special technical or packaging requirements.