JS-31 Electromagnetic Door Holder with 50kg Holding Force and 12V/24V DC Operation for Smoke Proof Doors
The JS-31 is a wall-mounted electromagnetic door holder featuring low power consumption for enhanced environmental friendliness and durability. Professional anti-residual magnetism design ensures maximum security. Automatically releases fire doors during fire alarms and includes built-in release button for testing and MOV for reverse current protection.
| Parameter | Specification |
|---|---|
| Dimensions | 80L × 80W × 40mm |
| Holding Force | 50kg (110lbs) |
| Operating Voltage | 12V or 24V DC |
| Standby Current | 140mA@12V, 70mA@24V |
| Optional Features | Manual door release button |
| Compatibility | All types of single & double smoke proof doors |
| Shell Finish | High temperature paint and environmental protection zinc |
| Armature Finish | Zinc |
| Surface Temperature | <20℃ |
| Operating Temperature | -10°C to 55°C |
| Humidity Range | 0-90% RH |
| Weight | 0.85kg |
| Standard Packing | 20 pieces per carton |
| Carton Dimensions | 60L × 35W × 16.5H (cm) |
- Colinear load test certified for 50kg (110 pounds) holding force
- Dual voltage operation: 12V or 24V DC (factory default: 12V DC)
- MOV provides reverse current protection
- Low power consumption for environmental protection
- Anti-residual magnetism design for enhanced security
- Professional design with dual insulative housing
- Automatically closes smoke proof doors during fire emergencies
JUNSON provides 3-year warranty service for qualified products when damage is not caused by human factors. Additional charges apply for repairs outside warranty terms. Visit our service center for complete warranty information.
We offer comprehensive electronic lock solutions including magnetic door locks, electric deadbolt locks, electric strikes, electric bolt locks, and access control systems.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.