ABB M2SS2-21Y is a two-position illuminated maintained selector switch operator with an A/C operating configuration, yellow short handle, chrome plastic bezel and IP66 front protection for industrial machinery and control-panel applications.
The ABB M2SS2-21Y is a two-position illuminated selector switch operator from ABB's modular plastic pilot-device range, designed for industrial machinery, control panels and operator stations. It combines a compact short rotary handle with a maintained switching action for reliable two-state command and selection functions.
The M2SS2-21Y features a yellow short handle, yellow illumination and a chrome plastic bezel. Its A/C operating configuration provides two maintained selector positions, allowing the chosen operating state to remain selected after the handle is released.
Designed for ABB's 22 mm modular pilot-device system, the M2SS2-21Y provides IP66 front protection and a NEMA 4X front protection classification. The operator is supplied without a contact block, allowing compatible ABB modular switching components to be selected for the required control circuit. ABB order code 1SFA611201R2103 identifies this exact M2SS2-21Y Selector Switch.
Key Advantages
Two maintained selector positions provide positive selection between two control states.
A/C operating configuration provides the defined selector action for this M2SS2 variant.
Yellow illuminated short handle combines rotary control with clear visual indication.
Chrome plastic bezel provides a clean, coordinated industrial control-panel appearance.
IP66 front protection supports installation in demanding industrial environments.
NEMA 4X front protection provides additional environmental protection classification.
Standard 22 mm mounting format supports straightforward panel integration.
ABB modular construction allows the required contact blocks and illumination components to be configured separately.
Key Features
ABB M2SS2 modular selector switch operator.
Two-position selector.
Maintained / latching operation.
A/C selector configuration.
Yellow short rotary handle.
Yellow indicator illumination.
Chrome plastic bezel.
Suitable for illumination.
22 mm mounting hole.
IP66 front protection rating.
NEMA 4X front protection classification.
Supplied without a contact block.
Net weight approximately 0.015 kg.
ABB order code 1SFA611201R2103.
Maintained Rotary Selection with Yellow Visual Indication
Maintained selector switches are suited to control functions where an operator needs to select a machine or process state that remains active after the handle is released. The ABB M2SS2-21Y provides two stable positions with an A/C operating configuration, making it suitable for operating-mode selection, circuit selection and other two-state industrial commands.
The yellow illuminated short handle provides clear visual identification, while the chrome plastic bezel gives the operator a coordinated industrial appearance. ABB's modular pilot-device architecture allows compatible contact blocks and illumination components to be selected according to the electrical requirements of the application, providing flexibility for machine builders and panel builders.
Typical Applications
Industrial machinery mode selection.
Machine control panels and operator stations.
Manufacturing and production equipment.
Conveyor and material handling systems.
Process control and automation equipment.
Control desks and local operator interfaces.
OEM machinery and machine-building applications.
Technical Specifications
Tick the specs you need, then view products that match.
Illumination
Illuminated
Device Type
Selector Switch
Product Series
ABB Modular
Mounting Diameter
22 mm
Colour
Yellow
Operation
2 positions – maintained
Series
M2SS2
Order code
1SFA611201R2103
Product type
Illuminated selector switch operator
Number of switch positions
2
Operating principle
Maintained / latching
Selector configuration
A / C
Spring return
No
Actuator type
Short rotary handle
Actuator colour
Yellow
Indicator light colour
Yellow
Suitable for illumination
Yes
Bezel colour
Chrome
Bezel material
Plastic
Mounting hole diameter
22 mm
Front protection rating
IP66
NEMA protection rating
4X
Contact block
Not included
Net weight
approximately 0.015 kg
EAN
7320500285107
Product group
312001-Pilot Devices (Secrl)
Frequently Asked Questions
What is the ABB M2SS2-21Y?
The ABB M2SS2-21Y is a two-position illuminated selector switch operator with a yellow short handle and chrome plastic bezel for industrial machinery and control-panel applications.
Is the ABB M2SS2-21Y maintained or spring return?
The M2SS2-21Y has maintained, non-spring-return operation, meaning the selector remains in its chosen position after the handle is released.
What operating configuration does the M2SS2-21Y use?
The M2SS2-21Y uses ABB's A/C two-position selector configuration.
What colour is the M2SS2-21Y selector handle?
The M2SS2-21Y has a yellow short rotary handle with yellow visual indication when used with the appropriate illumination components.
What type of bezel does the M2SS2-21Y have?
The M2SS2-21Y uses a chrome plastic bezel, combining a chrome appearance with ABB's modular plastic pilot-device construction.
Is the ABB M2SS2-21Y suitable for illumination?
Yes. The M2SS2-21Y is an illuminated selector switch operator designed for use with compatible ABB illumination components.
What is the protection rating of the ABB M2SS2-21Y?
The M2SS2-21Y provides IP66 front protection and a NEMA 4X front protection classification.
Does the M2SS2-21Y include a contact block?
No. The M2SS2-21Y is supplied without a contact block, allowing compatible ABB modular contact blocks to be selected according to the required switching circuit.
What is the ABB order code for the M2SS2-21Y?
The ABB order code for the M2SS2-21Y Selector Switch is 1SFA611201R2103.
Trusted by Machine Builders Worldwide
ABB modular pilot devices are widely used by machine builders, panel builders and automation engineers for dependable operator control, clear machine-status indication and flexible integration into industrial machinery and automation systems.
Illumination
Illuminated
Device Type
Selector Switch
Product Series
ABB Modular
Mounting Diameter
22 mm
Colour
Yellow
Operation
2 positions – maintained
Series
M2SS2
Order code
1SFA611201R2103
Product type
Illuminated selector switch operator
Number of switch positions
2
Operating principle
Maintained / latching
Selector configuration
A / C
Spring return
No
Actuator type
Short rotary handle
Actuator colour
Yellow
Indicator light colour
Yellow
Suitable for illumination
Yes
Bezel colour
Chrome
Bezel material
Plastic
Mounting hole diameter
22 mm
Front protection rating
IP66
NEMA protection rating
4X
Contact block
Not included
Net weight
approximately 0.015 kg
EAN
7320500285107
Product group
312001-Pilot Devices (Secrl)
No documents available for this product.
UK delivery
Delivery options
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productManufacturer Lead Time
Estimated Delivery 5 weeks
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
