Eaton FAZ Circuit Breaker - FAZ-B16/2
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Product Information
Full details
The Eaton FAZ-B16/2 is a high-reliability 2-pole miniature circuit breaker designed for electrical professionals and homeowners looking to enhance safety in distribution boards. It provides dependable overcurrent protection with a 10kA short-circuit capacity, making it an excellent choice for standard residential or light commercial circuits. The main caveat for users is ensuring that the 16A rated current and Type B tripping characteristic are appropriate for the specific load requirements of the intended application, as improper sizing can lead to nuisance tripping or inadequate protection.
All features
| Series | FAZ |
|---|---|
| Model Part Number | 278734 |
| Brand | EATON INDUSTRIES |
Extended Product Information
FAQs
What does the Type B characteristic mean?
Type B means the circuit breaker is designed to trip at 3 to 5 times the rated current, making it ideal for loads with low surge currents like standard lighting and resistive loads.
Can I use this for a 230V circuit?
Yes, while rated for 400V, this 2-pole breaker can be used in 230V applications where two-phase or neutral/phase switching is required.
What is the IP rating of this device?
The device has an IP20 rating, meaning it is protected against solid objects larger than 12mm but is not protected against water ingress.
Is the DIN-rail mounting standard?
Yes, it is designed for industry-standard DIN-rail mounting, allowing for simple integration into most modern electrical panels.
Can I connect two wires into one terminal?
The terminals are designed for single conductors; consult local electrical regulations and manufacturer documentation regarding terminal capacity if you intend to group multiple wires.
What is the maximum torque for the terminals?
Always follow the torque specifications printed on the device or in the installation manual to prevent stripping the terminal screws.
Troubleshooting
Breaker trips immediately upon being reset
There is likely a short circuit or ground fault in the connected line. Disconnect the load and test the circuit for faults before attempting to reset again.
Visual indicator does not move when toggling the switch
Check for internal mechanical obstruction or damage to the unit. If the status window does not match the switch position, the unit should be replaced.
Difficulty inserting wires into the terminals
Ensure the elevator terminals are fully opened by turning the screws counter-clockwise and check that the wire gauge is within the 1-25mm² range.
Pros and Cons
Pros
- Clear visual contact status indicators
- High 10kA short-circuit breaking capacity
- Easy removal from DIN-rails
- Versatile terminal connection options
- Compact industrial-grade design
Cons
- Requires professional installation for electrical compliance
- Limited to 16A current rating applications
- Indoor use only due to IP20 rating
Setup, Compatibility & Care
Installation should always be performed by a qualified electrician to ensure safety and compliance with local building codes.
- Preparation: Ensure the power supply is isolated at the main distribution board before beginning work.
- Mounting: Align the device on a standard DIN-rail and use the 3-position clip to lock it into place.
- Wiring: Strip the conductors to the appropriate length and insert them into the elevator terminals. Tighten the terminals to ensure a secure connection for cables between 1mm² and 25mm².
- Verification: After installation, verify that the contact indicator shows the correct position and perform a brief functional check.
- Maintenance: Regularly inspect the terminal connections for tightness and monitor the CPI indicator for any signs of contact welding or mechanical failure.