3G112 Mark 3 - Morticed Deadlock – Single Action

Application

Purpose

To provide secure locking of swinging pass / control doors and gates where positive locking by a mechanical key is required.

Overview

The 3G112 Mark 3 is a mortice deadlock of robust construction based on the Chubb Locks Custodial Services small mortice lock footprint. The mechanical deadbolt provides a throw of 17mm.

The lock provides deadlocking operated by a unique key profile to the Mark 3 range of locks and will not operate Mark 1 or Mark 2 lock variants. The lock is operable from both sides and the escutcheon is designed to allow only the correct key profile to be inserted into the lock.

Note: This lock cannot be master keyed.

Specification

Principal of Operation

• To Deadlock - Insert the key in to the escutcheon and rotate once (top of the key rotates towards the door edge)
• To Unlock - Insert the key in to the escutcheon and rotate once (top of the key rotates away from the door edge)

Standard Features

• Heavy Duty Electroplated Steel cap and case
• 17mm throw laminated bolt fitted with anti-saw Tungsten Carbide rollers
• 12 lever key mechanism (6 for the purpose of differing)
• Factory restricted hardened steel one piece key
• Nylon key journals moulded to the cap and case to increase wear resistance
• Security fixing screws
• Microswitch versions feature bolt status monitoring

Performance/Testing/Criteria

• Mechanical locking mechanism tested to a minimum of 500,000 operations
• Saw attack on the main bolt 12 hours
• End load 13.5 kN
• Side Load 13.5 kN
• Impact tested to UK Government requirements

Total Range

• The lock is not handed, however for use on steel doors the short forend version should be ordered and for wooden doors the long forend version is recommended.
• NOTE: Wooden Doors: This lock should be fitted to a wooden door with a minimum thickness of 54mm. Please contact CLCS for guidance if alternative wooden door thicknesses are required.

Dimensions & Weights (Approx)

Case Height	114mm
Case Length	171mm
Case Thickness	21mm
Bolt Throw	17.4mm
Bolt Depth	58.7mm
Bolt Thickness	16.5mm
Weight (lock only)	2.5kg

 

Finish

• Lock case - carbon steel electro-plated
• Main bolt - stainless steel bolt tail with brass bolt heads and running blocks. Stainless Steel bolt head & blocks are available
• Escutcheons - investment cast brass natural
• Faceplate - Brass
• Keys - Hardened Steel
• Levers and springs - Brass / phosphor Bronze.

Standards