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1SFA611284R1004 ABB M3SSK2-104 3-Position Maintained Key Selector Switch
ABB M3SSK2-104 is a three-position maintained key-operated selector switch with random key selection, key removal in position B only, a black plastic front ring and IP66 front protection for industrial control applications.
£24.60
Why Choose the ABB M3SSK2-104 Selector Switch?
The ABB M3SSK2-104 is a three-position maintained key-operated selector switch from ABB's modular plastic pilot-device range, designed for industrial machinery, control panels and automation systems. Its key-operated interface provides deliberate selection between three defined operating states while retaining the selected position until it is intentionally changed.
The M3SSK2-104 uses a random key selection configuration and provides three maintained positions with the key removable in position B only. This key-retention arrangement is particularly useful where the key should remain captured whenever either outer operating state is selected.
Designed for standard 22 mm panel mounting, the M3SSK2-104 features a black key-operated actuator, black plastic front ring, non-illuminated construction and IP66 front protection. It is supplied without a contact block, allowing compatible ABB modular contact blocks to be selected according to the required electrical switching arrangement.
Key Advantages
- Three-position maintained operation provides stable selection between three control states.
- Key removable in position B only provides defined key-retention behaviour.
- Random key selection identifies this specific M3SSK2 key configuration.
- Black plastic front ring provides a practical industrial operator-panel finish.
- IP66 front protection supports installation in demanding industrial environments.
- ABB modular construction allows compatible contact blocks to be selected for the required control circuit.
Key Features
- ABB M3SSK2 key-operated selector switch.
- Three selector positions.
- Maintained/latching operating function.
- No spring return.
- Random key selection.
- Key removable in position B only.
- Black key-operated actuator.
- Black plastic front ring.
- Non-illuminated construction.
- 22 mm mounting-hole diameter.
- IP66 front protection.
- NEMA Type 4X protection.
Controlled Three-Position Selection for Industrial Machinery
Three-position key selector switches provide a deliberate operator interface for machinery and processes requiring controlled selection between multiple operating states. The ABB M3SSK2-104 uses a maintained, latching mechanism without spring return, so the selected position remains mechanically set until the operator intentionally changes the selector.
The M3SSK2-104 permits key removal in position B only, while its random key-selection configuration distinguishes this variant within the M3SSK2 family. Combined with ABB's modular contact-block architecture, the selector is suitable for machine mode, process and function-selection applications requiring controlled three-position operation.
Typical Applications
- Industrial machinery control panels.
- Key-controlled machine mode selection.
- Operator control stations and consoles.
- Three-state process and function selection.
- Production and manufacturing equipment.
- Material handling and conveyor control systems.
- OEM machinery and electrical control assemblies.
Technical Specifications
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| Illumination | Non-illuminated | |
|---|---|---|
| Device Type | Key Selector Switch | |
| Product Series | ABB Modular | |
| Mounting Diameter | 22 mm | |
| Colour | Black | |
| Operation | 3 positions – maintained | |
| Series | M3SSK2 / ABB Modular Plastic Pilot Devices | |
| ABB order code | 1SFA611284R1004 | |
| Product group | 312001-Pilot Devices (Secrl) | |
| Product type | Key-operated selector switch | |
| Number of positions | 3 | |
| Operating function | Maintained / latching | |
| Spring return | No | |
| Actuator type | Key operated | |
| Actuator colour | Black | |
| Key configuration | Random selection | |
| Key removal | Position B only | |
| Illumination | Non-illuminated | |
| Front ring | Included | |
| Front ring material | Plastic | |
| Front ring colour | Black | |
| Contact block | Not included | |
| Mounting-hole diameter | 22 mm | |
| Front protection rating | IP66 | |
| NEMA protection | Type 4X | |
| EAN | 7320500544235 |
Frequently Asked Questions
What is the ABB M3SSK2-104?
The ABB M3SSK2-104 is a three-position maintained key-operated selector switch from ABB's modular plastic pilot-device range, designed for industrial machinery and control-panel applications.
How many positions does the ABB M3SSK2-104 have?
The M3SSK2-104 has three selector positions, providing stable selection between three defined machine or control states.
Is the ABB M3SSK2-104 maintained or momentary?
The M3SSK2-104 has a maintained/latching operating function and does not use spring return, so the selected position remains set until deliberately changed.
Where can the key be removed from the ABB M3SSK2-104?
The key can be removed in position B only. In the other selector positions, the key remains captured.
What key configuration does the ABB M3SSK2-104 use?
The M3SSK2-104 is the random key-selection variant within this ABB three-position key-selector family.
Is the ABB M3SSK2-104 illuminated?
No. The M3SSK2-104 is a non-illuminated key-operated selector switch.
What mounting size and protection rating does the ABB M3SSK2-104 have?
The M3SSK2-104 is designed for a 22 mm mounting hole and provides IP66 front protection and NEMA Type 4X protection.
Does the ABB M3SSK2-104 include a contact block?
No. The M3SSK2-104 is supplied without a contact block, allowing compatible ABB modular contact blocks to be selected according to the required electrical switching function.
Trusted by Industrial Automation Professionals Worldwide
ABB modular pilot devices are widely used by machine builders, panel builders and automation engineers to provide dependable operator control, clear machine-function selection and flexible integration into industrial machinery, automation equipment and electrical control systems.
