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1SFA611283R1004 ABB M3SSK1-104 Three-Position Maintained Random-Key Selector Switch
ABB M3SSK1-104 is a black non-illuminated three-position maintained key selector switch with random key selection, key removal in all positions, a black plastic bezel and IP66 front protection for industrial control applications.
£24.60
Why Choose the ABB M3SSK1-104 Key Selector Switch?
The ABB M3SSK1-104 is a three-position maintained key-operated selector switch designed for industrial machinery, automation systems and electrical control panels where controlled access to operating functions is required. Part of ABB’s modular plastic pilot-device range, it features a black key-operated actuator with a black plastic bezel.
The M3SSK1-104 provides three maintained positions, with the key removable in all positions. This allows an authorised operator to select a machine state, remove the key and leave the chosen position mechanically retained until the selector is operated again with the appropriate key.
ABB order code 1SFA611283R1004 identifies this exact M3SSK1-104 selector switch. This version uses random key selection and is supplied by ABB in packages of 25, with each selector switch incorporating a unique key code.
Key Advantages
- Three-position maintained key selector for controlled industrial switching.
- Key removable in all positions for flexible operating procedures.
- Random key selection provides unique key coding for individual selectors.
- Black plastic bezel provides a clean industrial control-panel interface.
- 22 mm mounting format suits standard industrial operator panels.
- IP66 front protection and NEMA 4X classification support demanding environments.
Key Features
- ABB M3SSK1 modular key selector switch.
- Three operating positions.
- Maintained switching function.
- Key removable in all positions.
- Random key selection.
- Each selector in the package incorporates a unique key code.
- Black key-operated actuator.
- Non-illuminated construction.
- Black plastic bezel.
- 22 mm mounting format.
- IP66 front protection.
- NEMA 4X classification.
- Designed for use with separately selected ABB modular contact blocks.
Controlled Three-Position Selection for Industrial Machinery
Key-operated selector switches provide a practical way to restrict machine-state or operating-mode changes to personnel holding the appropriate key. The ABB M3SSK1-104 provides three maintained positions and allows the key to be removed in every position, enabling a selected state to remain mechanically retained after the key has been withdrawn.
The random-key configuration is particularly suitable where individually keyed selectors are required. ABB specifies that each selector in the package has a unique key code, while standard key codes 455, 421 and 3433-E are excluded from the random selection.
Typical Applications
- Industrial machine control panels.
- Authorised operating-mode selection.
- Factory automation equipment.
- Three-state keyed machine controls.
- Applications requiring individually keyed selectors.
- Production and process machinery.
- Conveyors and material handling systems.
- OEM machinery and electrical control systems.
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 | Maintained | |
| Series | M3SSK Modular Pilot Devices | |
| ABB order code | 1SFA611283R1004 | |
| Product group | 312001-Pilot Devices (Secrl) | |
| Product type | Key selector switch operator | |
| Number of positions | 3 | |
| Switching function | Maintained | |
| Momentary function | No | |
| Actuator type | Key | |
| Key selection | Random selection | |
| Key removal | All positions | |
| Excluded standard key codes | 455, 421 and 3433-E | |
| Actuator colour | Black | |
| Illumination | Non-illuminated | |
| Bezel material | Plastic | |
| Bezel colour | Black | |
| Mounting format | 22 mm | |
| Front protection rating | IP66 | |
| NEMA classification | 4X | |
| Product net weight | approx. 0.045 kg | |
| Package quantity | 25 pieces |
Frequently Asked Questions
What is the ABB M3SSK1-104 used for?
The ABB M3SSK1-104 is a three-position maintained key selector switch used for controlled machine-state and operating-mode selection in industrial machinery, automation systems and electrical control panels.
Is the ABB M3SSK1-104 maintained or momentary?
The M3SSK1-104 is a maintained selector switch, so its selected operating position remains mechanically retained rather than spring returning when released.
Can the key be removed in all positions?
Yes. The M3SSK1-104 is designed so that the key can be removed in all three operating positions.
What does random key selection mean for the M3SSK1-104?
The M3SSK1-104 uses random key selection. ABB supplies this order code in packages of 25 selectors, with each selector incorporating a unique key code; standard key codes 455, 421 and 3433-E are excluded.
What is the ABB order code for the M3SSK1-104?
The ABB order code for the M3SSK1-104 is 1SFA611283R1004.
Trusted Industrial Control from ABB
ABB modular pilot devices provide dependable operator control for machinery, automation systems and electrical panels, with configurable operators, contact arrangements and key-operated selector options suited to a wide range of industrial control functions.
