ABB M3SS1-20B is a black short-handle three-position maintained modular selector switch with a chrome-plastic bezel, 22 mm mounting and IP66 front protection for industrial control and automation applications.
The ABB M3SS1-20B is a robust three-position maintained selector switch designed for industrial control panels, machinery and automation systems. Part of ABB's modular 22 mm pilot device range, it features a black short-handle rotary actuator with a chrome-plastic bezel for clear and dependable manual selection.
The M3SS1-20B provides three maintained positions, designated A, B and C, allowing the actuator to remain in the selected position until it is deliberately moved. This latching operating principle makes it suitable for machine-mode selection, process control and other applications requiring three stable command positions.
Designed for a standard 22 mm mounting hole, the M3SS1-20B is a non-illuminated modular selector switch operator with IP66 front protection. Its modular construction allows it to be combined with compatible ABB holders and contact blocks to create the required electrical switching arrangement.
Key Advantages
Three-position maintained selector switch for versatile industrial control.
Three stable A, B and C positions remain selected until manually changed.
Black short-handle actuator provides straightforward rotary operation.
Chrome-plastic bezel provides a durable and professional operator interface.
Standard 22 mm panel mounting simplifies integration into industrial control stations.
IP66 front protection supports installation in demanding industrial environments.
Mechanical life of 500,000 operations supports dependable long-term service.
Key Features
ABB M3SS1 modular selector switch series.
Three maintained positions designated A, B and C.
Short-handle rotary actuator.
Black actuator colour.
Non-illuminated design.
Chrome-plastic front bezel.
22 mm mounting-hole diameter.
IP66 front protection rating.
NEMA Type 4X protection classification.
45° angle of throw.
Latching operation with no spring return.
Reliable Three-Position Control for Industrial Machinery
Three-position selector switches provide operators with a straightforward interface for choosing between multiple machine states or control modes. The maintained action of the ABB M3SS1-20B keeps its short-handle actuator in the selected A, B or C position until another position is deliberately chosen, providing clear and predictable manual control.
The M3SS1-20B forms part of ABB's modular pilot-device system, allowing machine builders and panel designers to combine the selector operator with compatible holders and contact blocks for the required electrical switching function. Its compact short handle, standard 22 mm mounting format and IP66 front protection make it well suited to industrial machinery and automation equipment.
Typical Applications
Industrial machinery control panels.
Three-mode operating selection circuits.
Manual / off / automatic control functions.
Manufacturing and production equipment.
Motor and process control stations.
Material handling and conveyor systems.
OEM machinery and industrial automation systems.
Technical Specifications
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Illumination
Non-illuminated
Product Series
ABB Modular
Mounting Diameter
22 mm
Colour
Black
Operation
Maintained
Device Type
Selector Switch
Series
M3SS1 Modular Pilot Devices
ABB order code
1SFA611210R2006
Product type
Selector switch
Product range
Modular 22 mm pilot devices
Operation
Maintained / latching
Number of positions
3
Positions
A, B, C
Spring return
No
Angle of throw
45°
Actuator type
Short handle
Actuator colour
Black
Illumination
Non-illuminated
Front ring material
Plastic
Front ring colour
Chrome
Mounting-hole diameter
22 mm
Front protection rating
IP66
NEMA protection
Type 4X
Mechanical durability
500,000 operations
Product weight
0.015 kg
EAN
7320500293461
ABB product group
312001-Pilot Devices (Secrl)
Frequently Asked Questions
What is the ABB M3SS1-20B used for?
The M3SS1-20B is a three-position maintained selector switch used for manual mode and function selection in industrial machinery, automation systems and electrical control panels.
How many positions does the ABB M3SS1-20B have?
The M3SS1-20B has three maintained positions, designated A, B and C.
Does the M3SS1-20B spring back when released?
No. The M3SS1-20B uses maintained latching operation, so the selector remains in its chosen position until it is manually moved to another position.
What type of actuator does the ABB M3SS1-20B use?
It uses a black short-handle rotary actuator with a chrome-plastic front bezel.
What mounting size is required for the ABB M3SS1-20B?
The M3SS1-20B is designed for a standard 22 mm mounting hole used by ABB modular pilot devices.
What is the front protection rating of the M3SS1-20B?
The selector switch provides IP66 front protection and a NEMA Type 4X protection classification when appropriately installed.
Is the ABB M3SS1-20B illuminated?
No. The M3SS1-20B is a non-illuminated selector switch operator.
Trusted by Industrial Control Professionals Worldwide
ABB pilot devices are widely used by machine builders, panel builders and automation professionals to provide dependable operator control and indication across industrial machinery, manufacturing equipment and process automation systems.
Illumination
Non-illuminated
Product Series
ABB Modular
Mounting Diameter
22 mm
Colour
Black
Operation
Maintained
Device Type
Selector Switch
Series
M3SS1 Modular Pilot Devices
ABB order code
1SFA611210R2006
Product type
Selector switch
Product range
Modular 22 mm pilot devices
Operation
Maintained / latching
Number of positions
3
Positions
A, B, C
Spring return
No
Angle of throw
45°
Actuator type
Short handle
Actuator colour
Black
Illumination
Non-illuminated
Front ring material
Plastic
Front ring colour
Chrome
Mounting-hole diameter
22 mm
Front protection rating
IP66
NEMA protection
Type 4X
Mechanical durability
500,000 operations
Product weight
0.015 kg
EAN
7320500293461
ABB product group
312001-Pilot Devices (Secrl)
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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.
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