CDVI ML-350M-PL-12 Mortice Electromechanical Lock, 650 kg, 12 V DC, Fire-rated 60 min

Introduction to the CDVI ML-350M-PL-12 and its key features

The CDVI ML-350M-PL-12 is a compact, high-performance mortice electromechanical lock designed for modern access control applications. Built in stainless steel and engineered around a powerful solenoid, this lock delivers a 650 kg holding force while remaining small enough for use in tight mortice pockets on single or double-action doors. It is a fail-safe (power-to-lock) device, fire-tested to 60 minutes to EN14846, and provides monitored lock and door status outputs plus a bi-directional snib for manual release. For facilities that need a reliable, monitored solution with a strong holding capacity and fire-rated credentials, the ML-350M-PL-12 is an attractive option.

Detailed specifications and benefits

• Model:ML-350M-PL-12 (Ref E0901D000220)
• Material / finish:Stainless steel construction for corrosion resistance and durability
• Dimensions:Lock body 200 × 25 × 40 mm; armature plate 200 × 25 × 3 mm — compact mortice profile suitable for many door types
• Handing:Reversible — suitable for single and double-action doors; mount horizontally or vertically
• Holding force:650 kg solenoid hold; pre-load/side-load capacity up to 225 kg
• Manual release:Bi-directional snib for mechanical override
• Cycle life:Tested to 250,000 cycles

• Voltage & current:12 V DC; 280 mA at 12 V
• Fail mode:Fail-safe (power-to-lock) — applies power to lock the door; suitable for managed escape routes when used with appropriate control systems
• Monitoring:Lock and door status monitored outputs to integrate with access control panels and alarm systems

• Fire rating:Fire tested to 60 minutes in accordance with EN14846
• Standards documentation:Datasheet and installation manual available from CDVI; installers should confirm accessory and mounting requirements

• High holding force in a compact mortice package — ideal where a concealed, strong lock is required.
• Fire-rated performance (60 min) permits use on fire doors where this rating is specified, subject to full compliance with local regulations and use of required intumescent gaskets and keeps.
• Monitored outputs and bi-directional snib support integration with modern access control systems and provide a mechanical fallback for release.
• Reversible handing and flexible mounting reduce the need for multiple SKUs, simplifying inventory and specifying.
• Reasonable electrical draw (280 mA at 12 V) that is compatible with common access control power supplies.

Use cases and scenarios where the ML-350M-PL-12 excels

The ML-350M-PL-12 sits at the intersection of security, fire-safety compatibility, and integration readiness. Typical use cases include:

• Commercial entrances:Office blocks, retail service entrances and reception doors that need controlled access during business hours and monitored status for security management.
• Critical rooms:Server rooms, plant rooms, telecom closets and storage areas where a high holding force is needed but a discreet, mortice-style lock is preferred.
• Managed escape routes:Where fail-safe operation is required by an access control strategy (power-to-lock) as part of an approved escape plan — provided the complete installation meets building and fire safety regulations.
• Retrofit and new build:The compact form factor and reversible handing make the ML-350M-PL-12 advantageous for both retrofit into existing doors and new installations.
• Monitored security systems:Facilities that require real-time lock and door state information for alarms, logging, or integration with building management systems.

Comparisons with similar products on the market

When comparing the ML-350M-PL-12 with other electromechanical mortice locks, several factors stand out: holding force, fire rating, monitoring capability, size, and mode of fail operation.

• Holding force:At 650 kg, the ML-350M-PL-12 is competitive with many high-holding mortice solenoid locks. Some maglocks will offer higher holding forces but require surface mounting; this CDVI unit provides similar security in a mortice form that keeps aesthetics and door hardware concealed.
• Fire rating:Not all electric locks are fire-tested. The 60-minute EN14846 rating gives the ML-350M-PL-12 an advantage for applications where certified fire performance is required. Alternatives without a fire rating may be unsuitable for certain doors or jurisdictions.
• Monitoring:Monitored lock and door status outputs are increasingly expected in access control projects. Lower-cost mortice electrolocks sometimes omit monitoring to reduce price; the CDVI model includes it, simplifying integration and compliance with monitored security systems.
• Fail mode:Fail-safe (power-to-lock) behavior suits managed escape routes and some security policies. By contrast, fail-secure devices (power-to-release) are preferred where doors must remain locked after power loss. Choosing between these depends on your safety and security priorities.
• Size and mounting:The ML-350M-PL-12’s compact profile is well-suited to narrow stile or slim door frames where traditional surface maglocks cannot be used.

Installation, compliance and practical considerations

Correct installation and compliance are critical to getting the best performance from the ML-350M-PL-12:

• Always consult the CDVI datasheet and installation manual for detailed mounting, wiring and accessory requirements. The manufacturer specifies intumescent gaskets, keep plates and brackets that affect both fire performance and holding capacity.
• Install only by qualified electricians or accredited access control installers. Integration with building fire alarm and escape systems must comply with local building regulations and fire codes.
• Confirm required accessories (keeps, shields, gasketing) and any additional labor on a project basis — these items can materially affect the final installed cost and compliance with fire certification.
• Warranty:Warranty information is not specified here; check with your supplier or CDVI for warranty terms before purchase.

Conclusion: why the CDVI ML-350M-PL-12 is a great choice

The CDVI ML-350M-PL-12 offers an appealing balance of strength, safety credentials and integration readiness. Its 650 kg holding force in a compact mortice package, combined with 60-minute fire testing to EN14846 and monitored lock/door outputs, makes it suitable for a wide range of commercial and secure applications. The reversible handing, bi-directional snib and compatibility with common 12 V DC access control systems simplify specification and installation. For projects where concealed locking, monitored status, and certified fire performance are required, the ML-350M-PL-12 is a strong contender — provided the installer follows the manufacturer guidance and local fire-safety regulations. Always confirm accessory needs and warranty terms with your supplier to ensure the finished installation meets both security and compliance goals.