Eaton Circuit Breaker - xEffect - 278809
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Product Information
Full details
The Eaton FAZ-S6/2 is a miniature circuit breaker (MCB) designed for reliable overcurrent protection in electrical systems. It is ideal for residential, commercial, and industrial applications requiring precise tripping characteristics. While offering robust protection, its Type S characteristic means it is designed for specific applications and may not be suitable for all circuit protection needs.
All features
| Series | xEffect |
|---|---|
| Model Part Number | 278809 |
| Brand | Eaton |
Extended Product Information
FAQs
What is the main purpose of the Eaton FAZ-S6/2 circuit breaker?
Its main purpose is to protect electrical circuits from overcurrents and short circuits, preventing damage to wiring and equipment, and reducing the risk of fire.
What does 'Type S' characteristic mean?
The 'Type S' characteristic refers to the breaker's tripping curve. It is designed to tolerate higher inrush currents for a short period before tripping, compared to a standard Type B curve, making it suitable for loads with moderate startup currents without causing nuisance tripping.
What is the breaking capacity of this MCB?
The Eaton FAZ-S6/2 has a rated short-circuit breaking capacity (Icu) of 10 kA according to IEC 60947-2 at 230 V and 400 V.
Can this breaker be used for DC circuits?
Yes, the breaker is rated for 60V DC, making it suitable for certain low-voltage DC applications in addition to its primary 230V AC use.
What is the maximum conductor size that can be connected?
The breaker can accommodate conductor cross-sections from 1mm² up to 25mm², for both solid and multi-wired (stranded) conductors.
Is this breaker suitable for damp environments?
No, it has an IP20 rating, which means it is protected against solid objects but not against water. It should be installed in a suitable enclosure to protect it from moisture and dust.
How do I reset the breaker after it trips?
To reset the breaker, push the operating handle fully to the 'OFF' position, then push it to the 'ON' position. If it trips again immediately, there is likely a persistent fault on the circuit.
Troubleshooting
Breaker trips immediately upon turning on.
This indicates a short circuit in the connected load or wiring. Turn off all devices on the circuit, reset the breaker. If it still trips, there is a fault in the wiring. If it does not trip, turn devices back on one by one to identify the faulty device.
Breaker trips intermittently without apparent overload.
This could be due to a 'nuisance trip' caused by a brief inrush current not handled by the Type S characteristic, or a developing fault. Check for loose connections, overheating, or a faulty appliance. Ensure the load does not exceed the 6A rating.
Breaker does not trip under overload conditions.
This is a serious safety issue. Immediately de-energize the circuit and replace the faulty breaker. Do not use the circuit until the breaker is replaced.
Breaker handle is stiff or difficult to operate.
Ensure the DIN rail is properly installed and the breaker is seated correctly. Check for obstructions. If stiffness persists, the internal mechanism may be compromised; consider replacement.
Pros and Cons
Pros
- Provides reliable overcurrent and short-circuit protection.
- Type S characteristic offers good immunity to temporary inrush currents.
- High breaking capacity (10 kA) ensures safety during fault conditions.
- Compact 2-pole design saves space in electrical panels.
- Durable construction suitable for industrial environments.
Cons
- Type S characteristic may not be ideal for all load types, especially those with very high or unpredictable inrush currents.
- Limited to 6A, not suitable for high-power circuits.
- IP20 rating requires installation in a protected enclosure.
- Primarily designed for AC circuits, though rated for DC voltage.
Setup, Compatibility & Care
Setup:
- Ensure the main power to the circuit is completely de-energized.
- Mount the FAZ-S6/2 onto a standard 35mm DIN rail within an appropriate electrical enclosure.
- Connect the supply conductors to the designated terminals (typically line and neutral for AC circuits).
- Connect the load conductors to the output terminals.
- Verify all connections are secure and correct before restoring power.
Compatibility:
- Voltage: Rated for 230V AC (and 60V DC). Ensure your system voltage aligns with these specifications.
- Frequency: Compatible with standard 50-60 Hz AC power systems.
- Wiring: Connectable conductor cross-section ranges from 1mm² to 25mm² for both solid and multi-wired conductors. Use appropriate termination methods (e.g., ferrules for stranded wire).
- Environment: Suitable for indoor use in ambient temperatures between -25°C and 75°C.
Care:
- The FAZ-S6/2 is a maintenance-free device under normal operating conditions.
- Regularly inspect the electrical enclosure for dust and ensure it is clean to prevent overheating.
- Periodically check that the breaker is securely fastened to the DIN rail and that connections remain tight. Do not attempt to open or repair the device itself; it is a sealed unit.