Hager Miniature Circuit Breaker - MTN140 - MTN - Type B - 40A

Name: Hager Miniature Circuit Breaker - MTN140 - MTN - Type B - 40A
Brand: HAGER
SKU: ytzab5wbwd
Availability: InStock

The Hager miniature circuit breaker detects overcurrents due to both overload and fault currents. ...

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Product Information

Full details

This guide is for homeowners and electricians using the Hager MTN140 miniature circuit breaker. The MTN140 provides essential protection against overcurrents, safeguarding electrical circuits from damage. However, it's crucial to ensure the cable's current-carrying capacity exceeds the breaker's rating for optimal performance.

All features

Series	MTN
Model Part Number	Mtn140
Brand	HAGER

Extended Product Information

FAQs

What is a Type B circuit breaker?

A Type B circuit breaker trips between 3 and 5 times its full load current, suitable for most domestic installations.

What does the MTN140 protect against?

The MTN140 protects against overcurrents due to overload and fault currents.

Who should install the circuit breaker?

A qualified electrician should install the circuit breaker.

What is the short-circuit breaking capacity of the MTN140?

The short-circuit breaking capacity is 6 kA.

How do I know if the breaker is faulty?

If the breaker trips frequently without apparent reason, or if it won't reset, it may be faulty. Contact a qualified electrician.

Is the MTN140 suitable for all types of installations?

It is suitable for most domestic installations. Always check the specifications and ensure it meets your specific requirements.

Troubleshooting

Breaker trips frequently.

Reduce the load on the circuit or check for faults in connected appliances. The cable's current carrying capacity should always exceed the current rating of the miniature circuit breaker.

Breaker does not turn on.

Check the breaker switch, and the wiring connections. Contact a qualified electrician if the problem persists.

Pros and Cons

Pros

Provides essential protection against overcurrents.
Suitable for most domestic applications.
Compact design for easy installation.
High short-circuit breaking capacity (6 kA).

Cons

Requires proper matching of cable current carrying capacity.
Specific to the MTN series and may not fit all distribution boards.

Setup, Compatibility & Care

Installation: The MTN140 should be installed by a qualified electrician.
Compatibility: Ensure the breaker is compatible with your distribution board.
Cable Sizing: Always ensure the cable's current-carrying capacity exceeds the breaker's rating to prevent damage.
Testing: Regularly test the breaker to ensure it's functioning correctly.
Maintenance: No specific maintenance is required; however, inspect for any physical damage during routine checks. If damage is apparent, replace the breaker.