Electromechanical lock

Electromechanical rim lock with emergency opening

Promix-SM420 - photo - 6


The lock is designed to restrict access to retail area furniture:

- showcases made of chipboard or aluminum profile;

- chipboard cabinets and drawers;

- refrigerator cabinets with swing door

.... and other similar equipment.

The lock is opened when the supply voltage is applied using a  remote access controller or a button (switch).

The function of emergency manual opening of the lock is provided.

Technical characteristics

Deadbolt holding force, kg, at least 150

DC supply voltage, V: 10-14

Input current (at 12V), A: 0.15

Lock weight, kg, maximum: 0.08

Length of power cable, m: 0.1


Promix-SM420 EN Operating Manual (download)

3D-model of the Promix-SM420.STEP (download)

3D-model of the Promix-SM420 with door position sensor.STEP (download)

We will be glad to see you as a client of Promix Engineering and Production Center
You can see the full range of Promix equipment and locks in our catalog
If you have any questions, you can contact a Promix manager by + 7 (4812) 619-330
You can also leave a request using the feedback form
Promix sm213 street variant
Promix sm112 for retail space furniture
Exclusive Distributor in Moldova!


We are happy to introduce our Exclusive Distributor in Republic of Moldova.
Industrial Communications SRL
+373 68643575


We are delighted to announce that another distribution agreement was reached.
Please meet our Exclusive Distributor in Portugal - ND SEGUR!!!



We are thrilled to announce that our electromechanical locks Promix have been successfully tested in the largest European notified agent TSU in Slovakia.


All news
© Promix, 2007 - 2021
35 Litera A, Krasninskoe shosse, Smolensk, Russia
location map
skype: itcpromix


WebCanape - develop sites and marketing