EUCHNER EUCHNER MGB (Multifunctional Gate Box)
EUCHNER modular interlock system with guard locking, for protecting movable access doors.
The EUCHNER MGB (Multifunctional Gate Box) family is a modular interlock system with guard locking, used to protect movable access doors on machinery. The type code describes the locking function (L0 without locking, L1 spring locking, L1H with handle module, L2 solenoid locking) and the connection type, for example ARA for modules that can be connected in series with other AR devices.
For a quotation request you need to state the code on the label of the existing device, the hinge direction of the door and the connector type used in the installation. MGB modules arrive on order in 1–4 weeks through the European supply chain; we do not confirm the electronic compatibility of fieldbus versions without checking the current data sheet for each code.
Models and codes
| Code | Note |
|---|---|
| MGB-L0-ARA | Interlock without door locking |
| MGB-L1-ARA | Door locking by spring force |
| MGB-L1H-ARA | Locking set with handle module |
| MGB-L2-ARA | Door locking by solenoid force |
| MGB-L0-APA | APA version, interlock without locking |
| MGB-L1-APA | APA version, spring locking |
Key specifications
| Performance level (PL) | e EN ISO 13849 |
|---|---|
| Current required for IMP (PLC control) | 3 mA |
| Connection | M12x1.5 (cable) / M23 or RC18 / M12 12-pin |
| Monitoring outputs | OD, OT, OL, OI |
| Reference standard | EN ISO 14119 |
The MGB family remains in the manufacturer's documentation alongside the newer MGB2 generation, with no explicit announcement of withdrawal from production.
Frequently asked questions
What information is needed for a quotation on an MGB module?
The complete code from the label of the existing module, for example MGB-L1H-ARA, plus the hinge direction of the door (left or right) and the connector type used, M12, M23 or cable entry. These details allow us to check compatibility with the EUCHNER documentation before sending the quotation.
What do we check before quoting for the MGB series?
We do not confirm the electronic parameterisation of fieldbus versions or compatibility with the existing safety system without the electrical diagram of the customer's installation. We only check the type code and the locking function in the manufacturer's current data sheet.
We do not design the machine safety circuit; we supply the MGB module together with the manufacturer's technical documentation.
Updated: 2026-11-12