Trusted OEM /ODM Manufacturing for Security Brands - YGS Locks

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 1

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 2

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 3

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 4

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 5

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 6

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength

Designed for fail-safe functionality, this lock preserves its structural stability and holding force even in intense heat, ensuring clear and immediate exit when the fire alarm is triggered. It incorporates solenoids resistant to high temperatures, heat-insulating components, and a stainless steel build that resists corrosion, offering exceptional fire performance.

Warranty:

1 year

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Product description

The YGS-DF Double-Door Fireproof Electromagnetic Lock is engineered for critical egress points requiring high holding force and certified protection. It features IP65-rated waterproofing, a V0 fire-resistance rating, and a high-temperature, corrosion-resistant metal body with double-insulated construction. Utilizing electromagnetic force to secure the door, it automatically releases upon power failure to comply with emergency evacuation codes.

Designed for fail-safe operation, the lock maintains structural integrity and a holding force of up to 600 kg even under extreme heat, ensuring immediate exit upon fire alarm activation. It incorporates high-temperature solenoids, thermal barriers, and stainless steel components for reliable performance in fire conditions.

UL-listed and building code compliant, the lock integrates seamlessly with access control systems and includes monitored dry contact inputs (NO/NC/COM configurable) for central status supervision and emergency release. An optional LED indicator provides visual status confirmation. The lock is compatible with left/right and inward/outward opening doors, as well as normally open or closed fire door configurations.

300kg Fireproof Electromagnetic Lock for Double Doors

Product Features

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 8

Emergency Release

The YGS-DF electromagnetic lock incorporates an anti-remnant magnetism technology and features an AB epoxy encapsulated construction to prevent magnetic sticking. Its spring-assisted mechanism combined with a positive pressure plunger guarantees instantaneous release upon loss of power, ensuring reliable performance in critical emergency situations including fire escape routes.

Waterproof and fireproof standards

Featuring a dual insulation design, the lock body achieves an IP65 rating for water resistance and meets UL94 V-0 standards for flame retardancy. Every component is constructed from materials that fulfill stringent waterproof and fireproof requirements.

Fireproof Electromagnetic Lock for Double Doors – 300kg High Strength 10

Safety and Endurance

Engineered with a durable anti-wear metal alloy that resists high heat and corrosion, it features built-in reverse current protection. This system is designed to absorb and mitigate damaging reverse current pulses, thereby protecting the critical electromagnetic coil and silicon steel core. The result is a reliably extended service life of over 350,000 cycles.

Remote Unlocking

Designed for fail-safe operation, this lock seamlessly interfaces with fire alarm systems to receive trigger signals. It initiates immediate automatic unlocking upon alarm activation, while its status is continuously polled by the control system for real-time feedback and monitoring.

Product Display

DF300MD Without signal

DF300MDL With signal

Broad Applicability

The YGS-DF double-door fireproof electromagnetic lock is commonly used for entrance doors in shopping malls and office buildings. Its housing is constructed of high-strength aluminum alloy, the entire lock body is electroplated, and it features a built-in MOV reverse polarity protection device. The lock operates within a temperature range of -10°C to +55°C and humidity conditions of 0% to 95% RH, maintaining reliable performance even in exposed outdoor environments and under frequent use. CE and MA certifications ensure compliance with international safety and electromagnetic compatibility standards. Equipped with an LED status indicator and optional normally open/closed signal outputs, it seamlessly integrates with a facility's security system.

Applicable Scenarios

Applicable Scenarios

Applicable Scenarios

Product parameters

Product Specifications
Operating voltage	Working current	Pull	Size	Weight	Pieces per Carton、PCS/CTN	Carton size	Product Color
DC 12V	960mA±5%	280kg（617 Ib）±10%	Lock body：lock body：5004727mm Iron Block：Iron Block:1823813mm	24.8KG	6（pcs）	532220137	customized according to requirements
DC 24V	480mA±5%

Material Characteristics
	Electromagnetic Lock case	Electromagnetic Lock Mounting Strip	Electromagnetic Lock Magnet	Electromagnetic Lock Coil	Electromagnetic Lock Suction Plate
Image
Material	Aluminum alloy/6063A bar	Aluminum alloy/6063A bar	Silicon steel sheet (0.5 mm single sheet)	Copper	Iron
Surface treatment	Anodized brushed silver	Anodized brushed silver	Electroplated environmentally friendly zinc	/	Electroplated environmentally friendly zinc

We meticulously select and validate all source materials—from high-grade electrical steel for optimal magnetic flux to corrosion-resistant alloys and engineering polymers—ensuring superior durability, performance, and compliance with stringent international safety and environmental standards.

Manufacturing Information
Delivery	7–30 days for samples; 4–8 weeks for bulk production
Quality control process	(OQC) Incoming Quality Control (IQC)、 In-Process Quality Control (IPQC) 、Final Quality Control (FQC)、 Outgoing Quality Control (OQC)
MOQ	Typically300–1,000 units for standard OEM orders (flexible for long-term partners).

Crafted through a rigorous quality management system, our electromagnetic locks are produced under stringent process controls—from precision manufacturing to final validation testing—ensuring unwavering reliability and compliance with international standards.

Product Certification
Certification	CE-LVD	CE-EMC	ROHS
Customer certification requirements	1. Existing certification: The certified products can be converted into the brand and model of the customer by the certification center through the form of filing.
	New certification: The customer proposes the certification type, and we provide samples to apply for the certification process to the certification center. (the following certifications can be met: CE, ROHS, WEEE, CB, FCC, REACH SVHC, etc.

Certification: Our electromagnetic locks are engineered to comply with major international standards (e.g., CE, FCC, CCC) and We provide comprehensive support—including documentation, testing samples, and technical collaboration—to ensure seamless compliance with your specific regional and project-specific certification needs.

Distinctive Edge
Flame retardant grade	Operating Temp	Surface Temp	NSS Salt spray time/level	Lock status signal	Anti-reverse power protection
V-0	﹣25℃—﹢55℃	Environment temperature+≤20°C	48H＞7grade	Signal Output(NO,NC,COM)	Anti-reverse polarity diode

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We warmly welcome OEM partners and industrial users who require customized application for special project requirement.