Siemens 5ST3 Control Lock Switch - 5ST3801
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Product Information
Full details
The Siemens 5ST3 Control Lock Switch (5ST3801) is designed for electricians and maintenance personnel needing to secure miniature circuit breakers (MCBs) in a specific state. Its primary benefit is providing robust lockout capabilities for safety during maintenance, preventing accidental switching. A key consideration is its compatibility with specific Siemens MCB series. This device offers sealable, switching-off blocking, and switching-on blocking functions, ensuring operational safety.
All features
| Series | 5ST3 |
|---|---|
| Model Part Number | 5ST3801 |
| Brand | Siemens |
Extended Product Information
FAQs
What size padlock can be used with the 5ST3801?
The Siemens 5ST3801 Control Lock Switch is designed to accommodate padlocks with a maximum shackle diameter of 3mm.
Which Siemens circuit breaker series are compatible with this lock?
This device is compatible with Siemens 5SP, 5SY, 5TE8, and 5SJ4 miniature circuit breaker series.
Does the padlock come with the locking device?
No, the padlock is not included with the Siemens 5ST3801 Control Lock Switch. It must be purchased separately.
What is the purpose of the sealable functionality?
The sealable functionality allows you to apply a seal to the device, providing an additional indication that the lock has not been tampered with and that the breaker is secured.
Can this device be used for switching-on blocking?
Yes, the 5ST3801 provides both switching-off blocking (to keep it off) and switching-on blocking (to prevent accidental activation when locked).
What is the main benefit of using this locking device?
The main benefit is enhanced safety during maintenance by ensuring that a circuit breaker cannot be accidentally switched on, preventing electrical hazards.
Troubleshooting
Locking device does not fit the breaker handle.
Verify that the circuit breaker is from the compatible Siemens series (5SP, 5SY, 5TE8, 5SJ4). Ensure the device is oriented correctly for attachment.
Padlock cannot be inserted or removed.
Check that the padlock shackle diameter does not exceed 3mm. Ensure the locking device and breaker handle are in the correct position for locking/unlocking.
Locking device feels loose on the breaker handle.
Confirm the correct model of circuit breaker is being used. Ensure the locking device is fully engaged with the handle before applying a padlock.
Pros and Cons
Pros
- Enhances safety by preventing accidental circuit re-energization during maintenance.
- Provides clear visual indication of lockout status.
- Compatible with a range of Siemens MCB series.
- Offers both switching-off and switching-on blocking for comprehensive control.
- Can be sealed for an additional layer of security.
Cons
- Requires a compatible Siemens miniature circuit breaker.
- Padlock not included.
- Limited to a maximum padlock shackle size of 3mm.
- Adds a minor step to the breaker operation when in use.
Setup, Compatibility & Care
Setup:
- Ensure the compatible Siemens miniature circuit breaker (5SP, 5SY, 5TE8, 5SJ4 series) is in the desired state (usually OFF for maintenance).
- Attach the Siemens 5ST3801 locking device to the circuit breaker's handle mechanism as per the specific instructions for your breaker model.
- Insert a padlock with a shackle diameter not exceeding 3mm through the designated holes in the locking device to secure the handle.
Compatibility:
- This device is designed for use with Siemens miniature circuit breakers from the 5SP, 5SY, 5TE8, and 5SJ4 series.
- Ensure your specific breaker model features a handle suitable for this type of locking mechanism.
Care:
- Wipe the device with a dry or slightly damp cloth. Avoid using abrasive cleaners or solvents.
- Periodically check the locking mechanism and the associated padlock for proper function and corrosion.
- Store spare locking devices in a clean, dry environment.