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1SFA611212R2101 ABB M3SS3-21R Three-Position Maintained/Momentary Illuminated Selector Switch
ABB M3SS3-21R is a red illuminated three-position maintained/momentary selector switch with fixed A and B positions, spring return from C to B, a short-handle actuator and chrome-plastic bezel for industrial control applications.
£8.96
Why Choose the ABB M3SS3-21R Selector Switch?
The ABB M3SS3-21R is a three-position maintained/momentary illuminated selector switch designed for industrial control panels, machinery and automation systems. Part of ABB's modular 22 mm pilot device range, it features a red short-handle rotary actuator with a chrome-plastic bezel for clear manual control and visual indication.
The M3SS3-21R combines maintained and momentary functions across its three positions: A and B are fixed, while position C provides spring return to B. This arrangement allows a maintained selection to be combined with a temporary command that automatically returns to the centre B position when the operator releases the handle.
Designed for standard 22 mm panel mounting, the M3SS3-21R is an illuminated modular selector switch operator supplied without a contact block. Its combination of fixed and spring-return positions makes it particularly useful for industrial machinery functions requiring both persistent mode selection and temporary operator commands.
Key Advantages
- Combined maintained/momentary operation provides two control behaviours from one selector.
- A and B positions are fixed for maintained selection.
- Spring return from C to B provides a temporary command from the third position.
- Red illuminated short-handle actuator combines operator control with visual indication.
- Chrome-plastic bezel provides a clean industrial operator interface.
- Standard 22 mm panel mounting supports straightforward control-panel integration.
- Modular ABB construction allows compatible contact and illumination components to be selected for the required circuit.
Key Features
- ABB M3SS3 modular selector switch series.
- Three-position maintained/momentary operation.
- A and B fixed positions.
- Spring return from C to B.
- Short-handle rotary actuator.
- Red actuator colour.
- Illuminated selector switch design.
- Chrome-plastic bezel.
- Supplied with no contact block.
- 22 mm modular pilot-device format.
- Product weight of approximately 0.015 kg.
Flexible Maintained and Momentary Control for Industrial Machinery
Selector switches combining maintained and momentary positions allow different operator commands to be handled through a single control device. On the ABB M3SS3-21R, positions A and B remain fixed after selection, while position C automatically returns to B when released, providing a practical interface where both persistent and temporary commands are required.
The M3SS3-21R forms part of ABB's modular pilot-device system, allowing machine builders and panel designers to configure the illuminated operator with compatible contact and illumination components. Its red short-handle actuator, chrome-plastic bezel and standard 22 mm format provide a compact operator interface for industrial machinery and automation equipment.
Typical Applications
- Industrial machinery control panels.
- Maintained mode selection with a temporary command function.
- Machine setup and operating controls.
- Jogging and temporary machine commands.
- Manufacturing and production equipment.
- Material handling and conveyor systems.
- OEM machinery and industrial automation systems.
Technical Specifications
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| Illumination | Illuminated | |
|---|---|---|
| Device Type | Selector Switch | |
| Product Series | ABB Modular | |
| Mounting Diameter | 22 mm | |
| Colour | Red | |
| Operation | Maintained | |
| Series | M3SS3 | |
| ABB order code | 1SFA611212R2101 | |
| Product type | Selector switch | |
| Product range | Modular 22 mm pilot devices | |
| Operating principle | Maintained / momentary | |
| Number of positions | 3 | |
| Positions | A, B, C | |
| Fixed positions | A and B | |
| Spring return | C to B | |
| Actuator type | Short handle | |
| Actuator colour | Red | |
| Illumination | Illuminated | |
| Bezel | Chrome plastic | |
| Contact block | Not included | |
| Mounting size | 22 mm | |
| Product weight | approx. 0.015 kg | |
| ABB product group | 312001-Pilot Devices (Secrl) |
Frequently Asked Questions
What is the ABB M3SS3-21R used for?
The M3SS3-21R is a three-position maintained/momentary illuminated selector switch used for industrial machine and automation functions requiring both fixed and spring-return operator commands.
How does the ABB M3SS3-21R operate?
The M3SS3-21R has three positions: A and B are fixed, while C provides spring return to B when the actuator is released.
Which position of the ABB M3SS3-21R is momentary?
Position C is momentary. When the selector is moved to C and released, it automatically returns to position B.
What type of actuator does the ABB M3SS3-21R use?
The M3SS3-21R uses a red short-handle rotary actuator with a chrome-plastic bezel.
Is the ABB M3SS3-21R illuminated?
Yes. The M3SS3-21R is an illuminated selector switch operator with a red actuator.
What bezel does the ABB M3SS3-21R have?
The M3SS3-21R has a chrome-plastic bezel for integration into ABB modular industrial operator interfaces.
Does the ABB M3SS3-21R include a contact block?
No. The M3SS3-21R is supplied without a contact block, allowing compatible ABB modular contact components to be selected for the required switching arrangement.
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.
