Electronic Latch Lock 3793 (12V)

Electronic Latch Lock 3793 (12V)
Technical Drawing

The 3793 e-latch is a high quality 12V electro-mechanical latch lock with a range of innovative features. These include key and mechanical cable overrides, floating door bolt to accommodate mis-alignment, and precision motor driven mechanism with excellent operation even under load.

It is supplied with a door mounted striker bolt (customer to specify flush fit or 2mm stand-off) and has an easy push-to-lock action. An internal sensor provides feedback on whether the door is closed. The latch has been designed for straightforward connection and control and comes with a 2, 4 or 6 metre cable (customer to specify)‚Äč.

When coupled with a suitable operating system, this latch lock can be locked and un-locked using a keypad, RFID card, fingerprint recognition and many other user ID methods. This makes it ideal for use on applications such as lockers, postal and delivery access systems, asset management systems and other enclosures.

For full Technical Data, Electrical Information and Accessories please see Standard Features and Additional Details below. 

Looking for a complete system? We can provide you with an entire Connected Locking System including touchscreen interfaces, software, and latches. Download our brochure for further information or contact us today on +44 (0) 121 505 0400.

Product Code Body width Body height Body depth Contact
3793 80 70 20 Contact

Standard Features

  • Rugged cast alloy construction
  • Compact size (70 high x 80 long x 20 thick)
  • Two, Ø4 attachment holes
  • Plug-in connection
  • Easy connectivity
  • Optional mechanical cable over-ride
  • Mechanical 10-disc key over-ride (1 key per 50 locks)
  • Removable over-ride lock cylinder
  • Ball ended, safe striker
  • Floating striker attachment allows for door misalignment
  • Wide tolerance striker socket
  • On-board intelligence - Easy control options
  • Door closed feedback (When locked)

Technical Data

  • Interface: JST – S6B – PH – SM4 – TB
  • Mechanical lifespan: 60,000 cycles
  • Dimensions: 70 x 80 x 20mm
  • Pull out force: 3000N
  • Maximum load for electronic opening: 150N at 12V
  • Housing material: Zinc alloy
  • Weight: 350g
  • Operating temperature range: -10 to +50 °C
  • Standby current: 6mA
  • Maximum current draw: 300mA
Electrical Information

The latch input and outputs connect directly to an on-board microprocessor. There is one input to specify lock/unlock  (2). This is internally pulled up.  When it is connected to VCC or left unconnected the latch will be locked. The latch will unlock when lock/unlock is pulled low (connected to ground) for longer than 10ms.

There are three outputs that indicate the status of the latch. The locked  status (4) indicates whether the latch is in the locked (high) position or not (low). When this input is high the latch internally is in the locked state. If the door is still open, it will be locked shut when it is next closed.

The latched  status indicates whether the striker bolt is latched into the lock (high) or not (low). This identifies whether the door is shut and locked or not. If the latch is unlocked (see above), the latched  indicator will always be low.

The latch present is indicated by low signal on the latch present output.

Connection Diagram


Male Connector
 Pin  Description
 1  +12V
 2  In – lock/unlock
 3  Out – latch present (active low)
 4  Out – locked (active high)
 5  Out – latched (active high)
 6  Ground


Timing Diagram

37928K Latch
 Product Code  Description
 37938K  Latch (Silver Electrophoretic)


Optional colours available upon request

 Product Code  Description  ‘X’ Dimension
 9519010  Striker assembly (flush fit)  20mm
 9519011  Striker assembly (2mm stand-off)  22mm
3792 Plug_Barrel replacement
 Product Code  Description
 9235435  Plug (barrel replacement with anti-drill pins)
3792 Door Plunger
 Product Code  Description
 9519013  13mm Spring Loaded door plunger (Replaces Barrel Override)
 Product Code  Description
 9560520  2 Metre Cable 
 9560540  4 Metre Cable
 9560560  6 Metre Cable

NOTE: All cables have male connectors both ends

 Product Code  Description
 9300124  Extra extended Override Key

NOTE: One per 50 locks/order as standard