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YLI: YM-280M(SS304)

YLI YM-280M(SS304) 280kg Single Door Magnetic Lock with Mortise Mount & Waterproof(600Lbs)

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280kg (600Lbs) holding force, DC12V(Default); DC24V(Adjustable), 12V/500mA(±10%) ; 24V/250mA(±10%), Anodized hard plating (500-hour salt spray test report) casing, fail-safe operation.

The YLI YM-280M(SS304) delivers 280kg (600Lbs) of static holding force designed for commercial access control. Built with high-strength anodized aluminum casing, zero residual magnetism, and 240-hour anti-corrosion salt spray certification.

verified280KG Holding Forceverified304 Stainless Steelverified0.5s Fast ReleaseverifiedFail-Safe Safety
KES 10,440.00KES 12,300.00
local_offerSave KES 1,860 today
3 Years Manufacturer Warranty

Product Overview

YM-280M(SS304)/M-280M-S(SS304) Single door mortice magnetic lock is designed for wooden door, metal door, glass door, fire-proof door. The shell and installation structural parts are made of 304 stainless steel to prevent the deformation or fracture when the door is opened and closed forcefully. There is a set of lock status signal (NO/NC/COM) output contacts, which provides real-time feedback for the access control system. YLl magnetic lock cores are produced with robotic laser welding technology, providing 2 to 3 times stronger impact resistance and torsional resistance than conventional production processes. The surface is treated with the internationally leading electroplating process and the lock itself has passed the 240-hour salt spray test in the national laboratory, achieving excellent performance of anti.oxidation, anti-rust and anti-corrosion. Our company offers a complete range of brackets for different locks.

Why Buy This Product

Certified 280kg (600Lbs) Holding Force

Rigorously tested to resist up to 280kg (600Lbs) of direct pull force, providing impenetrable magnetic locking against forced intrusions.

Robotic Laser Welded Core

Built with robotic laser welding technology, offering 2 to 3 times superior impact resistance and torsional rigidity compared to standard castings.

Instant 0.5s Demagnetization

Integrated mechanical push-off pin and precision demagnetizing coil completely eliminate residual magnetism, preventing sticky door release.

240-Hour Salt Spray Protection

Multi-layer electroplating and anodized shell exceed 240-hour salt spray corrosion tests, guaranteeing rust-free operation for years.

Best for These Applications

Single Commercial Doors

Standard single-leaf wooden, aluminum framed glass, or hollow metal office doors.

Commercial Office Entrances

Electronic keycard, keypad, or biometric access control for commercial suites and reception doors.

Server & Telecommunications Rooms

Securing mission-critical telecom hubs, server rooms, and electrical distribution closets.

Stairwell Fire Escape Doors

Fail-safe electromagnetic retention complying fully with international egress safety codes.

Key Advantages

  • Zero Residual Magnetism Mechanism:An anti-residual magnetism kick-off pin and precision demagnetizing circuit discharge residual flux within 0.5s when power is cut, preventing door drag.
  • UL94 V-0 Flame-Retardant Encapsulation:Electromagnet coils are encapsulated with American UL-certified fireproof resin, sealing out humidity, dust, and electrical breakdown risks.
  • Integrated MOV Surge Suppression:Built-in metal-oxide varistor absorbs back-EMF inductive voltage spikes, protecting sensitive access controllers and power supply relays.
  • Universal Bracket Hardware Compatibility:Engineered for seamless mounting with YLI MBK-series L-brackets, ZL-brackets for in-swing doors, and U-brackets for frameless glass doors.

Frequently Asked Questions

The YLI YM-280M(SS304) is an authentic fail-safe electromagnetic lock. The moment electrical power is cut or when a fire alarm emergency relay opens, the lock instantly releases, ensuring unrestricted escape in accordance with international life safety regulations.
We recommend a dedicated 12VDC or 24VDC linear or switching access control power supply providing at least 1.5A per lock leaf. Using an auxiliary 12V 7Ah backup battery ensures the lock remains energized during temporary power cuts.
For outward-opening doors, the YM-280M(SS304) mounts directly to the frame with the supplied armature plate. For inward-opening doors, a matching YLI ZL-bracket is required. For frameless glass doors, use a compatible YLI U-bracket (e.g. MBK-280U).
No. Because the YM-280M(SS304) operates purely by magnetic flux without moving latches, gears, or motor brushes, there are no mechanical parts to wear down. Occasional cleaning of the contact surfaces ensures over 500,000 problem-free cycles.

Technical Specifications

ParameterSpecification
Product Weight2.1
Shipping Weight2.42
Lock Typesingle
Holding Force Kg280
Holding Force Lbs600
Holding Force Text280kg (600Lbs)
Lock Dimensions231.5Lx41Wx26.5H(mm)
Armature Dimensions180Lx38.8Wx13.2H(mm)
Operating VoltageDC12V(Default); DC24V(Adjustable)
Current Draw12V/500mA(±10%) ; 24V/250mA(±10%)
Signal OutputLock signal(NO/NC/COM)(YM-280M-S(SS304))
Led IndicatorNo
Door Status SensorNo
Time DelayNone
Suitable ForWooden door, Glass door, Metal door, Fireproof door
Bracket CompatibilityMBK-280NL, MBK-280NZL, MBK-280U
Operating Temperature-30°C~+66°C (-22~151F)
Surface TemperatureWithin 20°C above ambient temperature
Suitable Humidity0~95% relative humidity
Ip RatingIP-65(need order)
Shell MaterialAnodized hard plating (500-hour salt spray test report)
Magnetic MaterialZinc
Armature MaterialZinc
CertificationsCE-EMC, CE-LVD, RoHS
Residual Magnetism TestDemagnetization and unlocking within 0.5 seconds
Salt Spray Test240-hour exposure (National laboratory report)
Durability TestPassed 1 million tests
Anti Residual DesignYes
Overvoltage Test125% overload normal operation
Undervoltage Test85% input voltage pull force test
Lock Core CertificationEncapsulation with American UL-certified fireproof resin
Voice PromptNo
BuzzerNo
Camera SensorNo
Flame RetardantPotting with flame-retardant resin (grade :V-0)
Stock7
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