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The YD30D, known as the Cobalt Double, is a revolutionary low voltage motor-driven door lock for 180º swing doors. It has been designed to secure double-acting doors and addresses two of the biggest issues in door locking; 1) the ability to align a misaligned door up to 16mm and 2) the ability to release when requested, even with excessive load on the door.

The Cobalt Double is typically used in commercial doors and controlled by access control systems. This allows the user to control access in and around a facility and provide traffic reports when desired. In addition, the Cobalt Double can be used in a simpler system where just controlling access to a single door can be implemented with a stand-alone access system.


  • Engineered to release when requested even under significant sideload pressure, something a traditional electromechanical lock won't. For example, on a swing door, this pressure could be applied from either side, and the lock will still release when needed.


  • Innovative in design, the Cobalt Double lock will align a door that has trouble closing completely by correcting misalignment of 16 mm (± 8mm, ± 5/16”) automatically. A common problem traditional electromechanical locks face is not being in the final position for the lock to work, especially on swing-through doors. The Cobalt Double mitigates that risk by aligning the door to ensure it closes and locks.


  • Offering feedback to the door's control panel and bolt positions is a standard feature of the YD30D. Monitoring the position of the door and whether the bolt pins are extended or retracted provides vital information needed to ensure a site is safe and secure.


  • Flexibility in installation as the Cobalt Double only requires low voltage power and signals to operate and can connect to any access system making wiring easy.

Ideal use case

High traffic volume, swing through pedestrian doors where door alignment or releasing when requested under sideload is required. Used extensively on double entrance doors in either mortice or surface installation as well as swing through glass doors where security is paramount, convenience required and appearances important. Seen in most market sectors but strong in Commercial, Healthcare, Airports, and Government.

Introducing the Cobalt Series

Options and Accessories
Model Comparison

World-leading in innovation and engineering, the unique design of the Cobalt Double uses a collapsing mechanism that is deadbolted when locked but will unlock when requested even with 6,000N (1,350 lbf) of sideload force on the door.


The pivot action of the Cobalt Double bolt pins will ‘grab’ the strike plate and pull the door into position for a misalignment up to 16mm (± 8mm, ± 5/16" in either direction).

High Security

With two 10mm (3/8") thick stainless steel bolt pins, the Cobalt Double has a holding force in excess of 10,000N (2250 lbf).

Low Current Consumption

The Cobalt Double will draw as little as 40mA in standby and only 0.75A in operation at 12VDC. Low current paired with high-security access control makes the YD30D a preferred product choice for many industry leaders. Offering an eco-friendly and economical solution, the Cobalt Double utilises a low power mode when in standby.

Integrated Access Control

With user-selectable fail-safe and fail-secure modes, and multiple attempts to lock or unlock, the YD30D is ready for a wide range of application requirements. It can be integrated easily with access control or alarm systems.

Versatile Installation

The Cobalt Double can be morticed flush into both the side or top of many door frames, and fitting tabs are available to make installation quicker. The lock is supplied with a matching strike plate as standard, but additional items are available in the form of a housing and dress plate. These products allow the lock to be surface mounted when mortice installation isn't a preferred or viable option. The housing and dress plates are supplied with self-adhesive tape for instant application to glass doors and door frames.


Tested for endurance for over 1,000,000 cycles, the Cobalt Double offers durability and safety in high volume traffic environments.

Certified EN14846

Holding the EN14846 certification, the Cobalt Double has been tested and awarded the European Standard for strength, security, durability, and function of electrical and electronic components for all types of electromechanically operated locks and striking plates used on doors, window doors and entrance doors in buildings.

Fire Tested

The Cobalt Single has been fire tested and approved to ensure our locks won’t compromise a fire door’s integrity or effectiveness.

Door Gap: 6mm maximum

Static Strength: 10,000 newtons (2250 lbf)

Sideload (release on request): 6,000 newtons (1350 lbf)

Endurance: Cycle tested to 1,000,000 operations

Bolt Pin (2 pieces): 10mm (3/8") thick, 13mm (1/2") extension

Alignment: ± 8mm (± 5/16") misalignment correction

Voltage at Lock: 12-24VDC ±15%

Initial Current Draw: 750mA@12V, 400mA@24V

Standby Current: 40mA@12V, 25mA@24V

Monitor Switch Ratings: 30VDC max, 100mA max

Lock / Strike Plate Material: Stainless Steel 304

Bolt Pin Material: Stainless Steel 17-4PH

Compliance and Certification: CE Compliant, RoHS 2 Compliant, FCC Part 15 / IC Compliant, RCM Compliant, UL Listed, EN 14846:2008 Certified, Suitable for use on fire resistant door sets

YD30D Models

The Cobalt Double lock is user fail safe / secure configurable and is supplied with a matching strike plate and mounting screws.

  • YNL230A – YD30D Lock and Strike
YD30D Accessories 

For installations requiring surface mounting of the lock, a housing and dress plate are available. Both the housing and dress plates are supplied with self-adhesive 3M® tape for instant application to glass doors and door frames.

  • YNL233A – YD30D Long Strike Plate
  • YNL234J – YD30D Housing with tape
  • YNL236J – YD30D Dress Plate with tape
  • YNL208 – Fitting Tab Kit
  • YNL209 – YD30X Wire Loom

Prime Estate On Main Street

Securing The Artwork

Solving Misalignment For Local Offices

Solving Misalignment In Hospitals

Lock Model Comparison

Name Application Lifecycle Holding Gorce Lock DimentionsBolt Pin Dimnetions Power Usage 


(Cobalt Double) 

Securing misaligned  Double acting doors, releasing under sideload pressure 1,000,0001000kg255x30x5110mm thick, 13mm extension (2 Pieces)

Input Voltage:12-24VDC ± 15% Current (Stand By) 40mA - 25mA   Current (Peak) 0.75A - 0.4A


(Cobalt Single)

Securing misaligned  single acting doors, releasing under sideload pressure 1,000,0001000kg160x30x5110mm thick, 13mm extension

Input Voltage :12-24VDC ± 15% Current (Stand By) 40mA - 25mA   Current (Peak) 0.75A - 0.4A

YD25Single Acting Doors1,000,0001000kg210x25x4212.7mm, 16mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 130mA - 80mA Current (Peak) 1A - 0.5A
YD25LDouble Acting Doors1,000,0001000kg210x25x4312.7mm, 16mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 130mA - 80mA Current (Peak) 1A - 0.5A
YD25KSingle Acting Doors1,000,0001000kg210x25x4412.7mm, 16mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 130mA - 80mA Current (Peak) 1A - 0.5A
YD38Single Acting Doors1,000,0002000kg203x37.5x4414.2mm, 14mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 150mA - 90mA Current (Peak) 1A - 0.5A
YD38LSingle Acting Doors1,000,0002000kg203x37.5x4514.2mm, 14mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 150mA - 90mA Current (Peak) 1A - 0.5A
YG80Securing all large openings, High strength, extreme heat and cold environments 3000005000kg80x80x15018mm, 30mm extensionInput Voltage : 12-24VDC ± 15% Current (Stand By) 40mA - 30mA Current (Peak) 1A - 0.5A - 2A with heater
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