ABB Circuit Breaker - SN201
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Product Information
Full details
The ABB SN201 installation circuit breaker is designed for electrical installers and maintenance professionals seeking a reliable and safe circuit protection device for various applications. Its key benefit lies in its enhanced safety features and ease of installation, while a potential caveat is its specific voltage and current rating, requiring careful selection for the intended circuit. This MCB offers robust protection with double cage terminals for secure wire connections, a clear contact position indicator, and compatibility with a wide range of accessories for extended functionality.
All features
| Series | SN201 |
|---|---|
| Model Part Number | 2CSS255101R0064 SN201-C6 |
| Brand | ABB |
Extended Product Information
FAQs
What is the breaking capacity of the SN201-C6?
The SN201-C6 has a breaking capacity of 6 kA, meaning it can safely interrupt fault currents up to 6,000 Amperes.
What does 'Curve C' mean for this circuit breaker?
Curve C indicates the tripping characteristic for inductive loads. It's designed to tolerate moderate inrush currents while still providing protection against short circuits, making it suitable for applications like lighting and small motors.
Can I use any screwdriver to tighten the terminals?
No, it is recommended to use insulated screwdrivers for safety when tightening the wire terminals.
What are the voltage and current ratings?
This specific model, SN201-C6, is rated for 230V AC and 6 Amperes.
How do I know if the circuit breaker is on or off?
The Contact Position Indicator (CPI) on the rocker switch clearly shows the status: typically, the 'up' position is ON and the 'down' position is OFF, with the indicator showing the contact state.
Is this circuit breaker suitable for DC circuits?
This particular model (SN201-C6) is designed for 230V AC circuits and is not intended for DC applications.
What accessories can be used with the SN201?
The SN201 is part of the S200 range and is compatible with various accessories such as auxiliary contacts for remote signaling, alarm contacts, and shunt releases for remote tripping.
Troubleshooting
Circuit breaker trips frequently.
Check for overloaded circuits or short circuits. Ensure wire connections are secure and correctly sized for the breaker's rating. If the issue persists, consult a qualified electrician.
Breaker does not reset after tripping.
Allow the breaker to cool down if it tripped due to overload. Inspect for any visible damage or obstructions. If mechanical failure is suspected, the breaker may need replacement.
Contact position indicator is not visible or stuck.
Ensure the breaker is fully engaged on the DIN rail. If the indicator is damaged, the breaker may require replacement.
Difficulty connecting wires to terminals.
Ensure the correct wire gauge is used and stripped to the appropriate length. Use insulated screwdrivers for tightening. Widen the terminal opening if necessary, being careful not to damage the mechanism.
Pros and Cons
Pros
- Enhanced safety with double cage terminals and clear CPI.
- Easy and quick installation due to captive screws and DIN rail mounting.
- Versatile application suitability due to compliance with worldwide standards.
- Reliable protection with a 6 kA breaking capacity.
- Compatibility with a broad range of accessories for added functionality.
Cons
- Specific 6A, Curve C rating may not be suitable for all circuit requirements.
- Requires insulated screwdrivers for wire terminal tightening.
- Limited to 230V AC operation.
- Primarily designed for specific installation environments.
Setup, Compatibility & Care
Setup:
- Ensure the main power to the circuit is off.
- Mount the SN201 circuit breaker onto a standard DIN rail within an electrical enclosure.
- Use insulated screwdrivers to securely connect the appropriate wires to the double cage terminals, ensuring a firm connection.
- Connect the second pole if using a double-pole configuration.
- Verify that the contact position indicator is visible and accessible.
Compatibility:
- Compatible with standard DIN mounting rails.
- Works with a wide range of S200 series accessories for enhanced control and monitoring.
- Suitable for circuits requiring 6A protection with a Type C tripping characteristic.
- Designed for 230V AC systems.
Care:
- Regularly inspect the breaker for any visible signs of damage.
- Keep the area around the breaker clean and free from dust and debris.
- Test the breaker periodically according to local electrical codes and safety standards.
- Always ensure power is disconnected before performing any maintenance or inspection.