JUNSON Launches Fire-Safe JS-H901 Electromagnetic Door Holder with Automatic Release for Life Safety

JUNSON Introduces the Fire-Safe JS-H901 Electromagnetic Door Holder

Shenzhen, China — JUNSON, a professional manufacturer of access control and door security solutions, is proud to announce the launch of its upgraded JS-H901 electromagnetic door holder (model JS-H901). Engineered for life safety, the new wall-mounted door holder is designed to hold fire and smoke proof doors open under normal conditions and automatically release them the moment a fire occurs, ensuring fire compartments close without human intervention.

Fire Safety First: Automatic Release That Saves Lives

The standout advantage of the JS-H901 is its fail-safe fire response. During a fire alarm, the power supply to the electromagnetic door holder is cut off, and the door releases instantly, allowing the smoke proof door to close automatically. This critical function prevents the spread of smoke and fire between compartments, buying precious time for evacuation and protecting property. The JS-H901 fully supports single and double smoke proof door installations, making it an ideal choice for hotels, hospitals, schools, office buildings, shopping malls and other high-traffic public facilities.

In addition to its fire safety performance, the JS-H901 is built with a series of professional engineering features that ensure reliable, long-term operation:

• 120 lbs / 70 kg holding force — colinear load tested to keep heavy fire doors securely open.
• Anti-residual magnetism design — the door releases immediately after power-off, eliminating the risk of the door remaining stuck.
• Built-in MOV reverse current protection — safeguards the unit against voltage surges and reverse current damage.
• Manual door release button — a red button allows instant manual release for testing or emergency use.
• Ultra-low power consumption — only 140 mA at 12V and 70 mA at 24V standby, making the unit more energy efficient and environmentally friendly.
• Dual insulative housing — professional insulation design enhances electrical safety.
• Low surface temperature — below 20°C even under continuous operation.

Built to Last: Premium Materials and Certification

The JS-H901 features a 304 stainless steel case with wire-draw finishing, delivering excellent corrosion resistance and a premium appearance that suits modern building interiors. It operates on 24V DC as standard, with 12V DC available by special order, and works reliably in temperatures ranging from -10°C to 55°C with humidity up to 90% RH.

Technical Specifications

Applications

The JS-H901 is suitable for all kinds of single and double smoke proof doors, glass doors and floor installation scenarios, providing dependable fire door holding and release in:

• Hotels and resorts
• Hospitals and clinics
• Schools and universities
• Office buildings and commercial centers
• Airports, stations and public facilities

About JUNSON

JUNSON is a professional manufacturer with more than 500 products in the access control and door security industry. Every unit undergoes strict inline and final inspection before delivery, with raw materials checked upon arrival and quality verified at each production stage. The company welcomes OEM and ODM projects, private logo printing, and offers flexible MOQ with samples available. With a monthly supply capacity of 5,000 pieces and delivery within 2-7 working days, JUNSON is a reliable partner for distributors and system integrators worldwide.

Contact JUNSON today to learn more about the JS-H901 fire-safe electromagnetic door holder or to request a quotation for your next project.