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ABB MSMN Coded Driver Accessory for MS Series Manual Motor Starters
The ABB MSMN Coded Driver is a mechanical accessory used in door coupling assemblies to operate manual motor starters MS116, MS132, or MS165 from outside the back of a switch cabinet. This coded driver accepts OXS6 shafts ranging from 6 mm up to 180 mm, with a 6x6 mm shaft interface, and is engineered so the shaft can only be applied in one designated position for secure, repeatable coupling. An uncoded version, the MSMNO, is also available for installations that do not require coding. The driver is RoHS compliant and rated to a tightening torque of 0.12 N·m (1.06 in·lb UL/CSA).
Key Features
- Shaft Interface: 6x6 mm shaft interface compatible with OXS6 shafts from 6 mm up to 180 mm in length.
- Coded Design: Enables secure door coupling so the shaft can only be applied in one designated position, preventing misalignment during assembly.
- Accessory Type: Mechanical driver accessory purpose-built for manual motor starter door coupling applications.
- Broad Compatibility: Compatible with MS116, MS132, MS325, and MO325 manual motor starters.
- Tightening Torque: Rated to 0.12 N·m (1.06 in·lb UL/CSA) for secure, code-compliant assembly.
- Compact Footprint: Net dimensions of 10 mm width x 31.2 mm depth/length x 12.5 mm height for tight cabinet clearances.
- Lightweight Build: Net weight of just 1.7 g, minimizing added load on the starter assembly.
Certifications & Compliance
- RoHS compliant per EU Directive 2011/65/EU and Amendment 2015/863, July 22, 2019.
Technical Specifications
- Accessory Group: Mechanical
- Shaft Diameter: 6x6 mm
- Tightening Torque: 0.12 N·m
- Tightening Torque (UL/CSA): 1.06 in·lb
- Product Net Width: 10 mm
- Product Net Depth/Length: 31.2 mm
- Product Net Height: 12.5 mm
- Product Net Weight: 1.7 g
- Minimum Order Quantity: 1 piece
- Packaging: 10 piece
Typical Applications
- Manual Motor Starter Door Coupling
- Switch Cabinet Front-Panel Operator Access
- Commercial and Industrial Motor Control Panels
- Low-Voltage Switch Technology Assemblies
- Retrofit and New Panel Builds Using MS116/MS132/MS165 Starters
Why ABB?
ABB engineers the MSMN driver as a precision-coded mechanical accessory, ensuring the shaft can only be fitted in its designated position for reliable, repeatable door coupling. Backed by RoHS compliance and clearly defined tightening-torque specifications, this driver supports safe, code-compliant assembly in professional low-voltage switch technology installations. For electrical contractors and panel builders, ABB's coded accessory line delivers consistent fit and function across MS-series manual motor starter installations, from initial build-out through panel retrofits.
Manufacturer Resources
Product Specs
- Product Type:
- Motor Starter Accessory
- Series:
- MSMN
- Configuration:
- Coded Door Coupling
- Standards:
- RoHS Compliant
- Department:
- Electrical
- Product Group:
- Motor Control & Automation
- Product Subgroup:
- Motor Starters & Contactors
ABB MSMN – Frequently Asked Questions
1) Which ABB manual motor starters does the MSMN coded driver work with?
The MSMN coded driver is used in door coupling assemblies for the MS116, MS132 and MS165 manual motor starters, and ABB also lists it as compatible with the MS325 and MO325. It is the piece that ties the starter to the shaft so the unit can be operated from outside the cabinet door.
2) What shaft does the ABB MSMN coded driver accept?
It takes OXS6 shafts with a 6x6 mm square interface, in lengths from 6 mm up to 180 mm. If your panel depth needs a shaft longer than 180 mm, or your shaft is a different profile than 6x6 mm square, this driver is not the right coupling piece.
3) What is the difference between the ABB MSMN and the MSMNO driver?
Coding. The MSMN is the coded version, machined so the shaft only seats in one designated position, which keeps the handle orientation repeatable and stops a mis-clocked assembly. The MSMNO is the uncoded version for builds where the shaft position does not need to be fixed. Pick the MSMN when you want the door handle to land the same way every time it is reassembled.
4) Is the ABB MSMN driver enough on its own to operate a motor starter from the cabinet door?
No. The MSMN is one piece of a door coupling assembly: it mounts on the starter and receives the shaft. You still need the OXS6 shaft cut to your panel depth and the door-mounted handle to complete the operator. Order those alongside it if you are building the coupling from scratch.
5) What torque do I tighten the ABB MSMN coded driver to?
0.12 N.m, listed as 1.06 in.lb under UL/CSA. That is a small fastener, so use a torque screwdriver rather than a driver bit in a drill; overtightening a coupling part this size is the usual way it gets damaged on assembly.
6) Will the MSMN driver fit in a tight panel with limited clearance behind the door?
Its net envelope is 10 mm wide by 31.2 mm deep/long by 12.5 mm high, and it weighs 1.7 g, so it adds almost nothing to the starter footprint. The clearance that actually drives your layout is the shaft run between the starter and the door, not the driver itself.
7) Can I add the MSMN coded driver to an existing panel, or is it new-build only?
Both. ABB lists retrofit as well as new panel builds using MS116, MS132 and MS165 starters among its applications, so if an existing starter is being brought out to the door on a panel upgrade, this is the coupling driver for it.
8) Does the ABB MSMN coded driver meet RoHS for a European or spec-driven panel build?
Yes, it is RoHS compliant per EU Directive 2011/65/EU and Amendment 2015/863. That is the compliance statement carried on the part, and it covers the usual submittal requirement on low-voltage switchgear builds.
9) Can I buy a single ABB MSMN driver or do I have to take a full box?
Minimum order is 1 piece; the standard pack is 10. So a one-off repair on an existing panel does not force you into a full carton, and a panel shop doing a run of starters can take the pack.
How fast can I get the ABB MSMN delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB MSMN come with a warranty?
Absolutely. The ABB MSMN is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB MSMN?
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