Live Electrical CN125B 25A B Curve Double Pole Bi-Directional MCB for SRN Consumer Units

25A 2 Pole Bi-Directional B Curve MCB for Compatible Live Electrical SRN Consumer Units

The Live Electrical CN125B is a 25A B Curve double pole bi-directional miniature circuit breaker (MCB) designed specifically for use with compatible Live Electrical SRN consumer units and double pole busbar arrangements.

Rated at 230V with a 6kA fault current rating, the CN125B provides overcurrent protection for appropriately designed 25A circuits while using a 2 pole configuration. Its bi-directional design allows current flow in either direction where required by the compatible installation.

The CN125B is intended specifically for the Live Electrical SRN consumer unit system and should be used with the appropriate SRN board and compatible Live Electrical busbar arrangement.

Features

• Live Electrical CN125B
• 25A Current Rating
• B Curve Tripping Characteristic
• Double Pole / 2P Configuration
• Bi-Directional MCB
• 6kA Fault Current Rating
• 230V Rated
• Miniature Circuit Breaker
• Designed for Live Electrical SRN Consumer Units
• Compatible with Appropriate Live Electrical SRN Busbars
• Suitable for Compatible Double Pole Busbar Arrangements
• Provides Overcurrent Protection
• Suitable for Appropriately Designed 25A Circuits
• Purpose-Designed SRN Consumer Unit Protective Device

25A Current Rating

The CN125B has a rated current of 25A, making it suitable for appropriately designed circuits requiring a 25A protective device.

The correct MCB rating must always be determined according to the connected load, conductor size, installation method, circuit characteristics and applicable electrical installation requirements.

The 25A rating should therefore be selected as part of the circuit design rather than simply as a replacement based on physical compatibility.

B Curve Tripping Characteristic

The CN125B features a B Curve tripping characteristic.

B Curve MCBs are commonly used on appropriate circuits where the expected inrush current is relatively low.

The required tripping characteristic should always be matched to the connected equipment and electrical circuit rather than assuming that the same curve is suitable for every application.

Double Pole / 2P Configuration

The Live Electrical CN125B is a 2 pole device, designed for the compatible double pole arrangement used within the Live Electrical SRN consumer unit system.

Its double pole configuration distinguishes it from conventional single-pole MCBs and makes correct consumer unit and busbar compatibility especially important.

When adding or replacing a device within an SRN consumer unit, the exact protective device configuration should be checked before installation.

Bi-Directional MCB

The CN125B is bi-directional, allowing current flow in either direction where required by the compatible electrical installation.

Bi-directional capability can be an important consideration in modern electrical distribution systems, particularly where the design of the installation requires protective devices approved for operation with power flow in either direction.

Specifically for Live Electrical SRN Consumer Units

The CN125B is designed for Live Electrical SRN consumer units.

Protective devices from different manufacturers or consumer unit ranges should not be assumed to be interchangeable simply because they have the same current rating, number of poles or similar physical dimensions.

The CN125B should therefore be paired with the appropriate Live Electrical SRN consumer unit and compatible busbar arrangement.

Compatible with SRN Double Pole Busbar Arrangements

The device is designed for use with the appropriate Live Electrical SRN double pole busbar system.

This matched arrangement allows the protective device to integrate correctly with the intended consumer unit system.

Customers purchasing the CN125B as an additional or replacement MCB should therefore confirm that their existing board is a compatible Live Electrical SRN model.

6kA Fault Current Rating

The CN125B has a stated 6kA fault current rating.

This is an important characteristic when specifying a circuit protective device and should be considered alongside the prospective fault current and overall design of the electrical installation.

230V Rated

The Live Electrical CN125B is rated at 230V, making it suitable for its intended low-voltage circuit protection application within compatible SRN installations.

MCB Overcurrent Protection

As a miniature circuit breaker, the CN125B is intended to provide overcurrent protection for an appropriately designed electrical circuit.

It is important to distinguish an MCB from an RCBO. The CN125B should not be described as providing 30mA residual-current protection unless that protection is provided separately elsewhere within the electrical installation.

Correct coordination with any RCD or other protective equipment within the consumer unit should therefore form part of the overall circuit design.

Ideal as a Compatible SRN Replacement or Additional MCB

The CN125B is a useful option when adding an appropriately rated circuit to a compatible SRN consumer unit or replacing an existing compatible protective device.

The important consideration is not simply the 25A B Curve rating, but also compatibility with the Live Electrical SRN system and its double pole busbar arrangement.

This makes the full CN125B product code important when identifying and ordering the correct replacement.

• Brand: Live Electrical
• Product Code: CN125B
• Product Type: Miniature Circuit Breaker (MCB)
• Series Compatibility: Live Electrical SRN Consumer Units
• Current Rating: 25A
• Tripping Curve: B Curve
• Number of Poles: 2P / Double Pole
• Directionality: Bi-Directional
• Fault Current Rating: 6kA
• Rated Voltage: 230V
• Busbar Compatibility: Compatible Live Electrical SRN Busbar Arrangement
• Application: Circuit Overcurrent Protection
• Consumer Unit Compatibility: Live Electrical SRN Consumer Units Only

Important Compatibility Information

The Live Electrical CN125B is intended for compatible Live Electrical SRN consumer units and busbar arrangements.

It should not be treated as a universal 25A MCB for installation in consumer units from other manufacturers or unrelated Live Electrical ranges.

Suitable Applications

• Live Electrical SRN Consumer Units
• Compatible Live Electrical SRN Distribution Equipment
• Compatible Double Pole Busbar Arrangements
• Appropriately Designed 25A Circuits
• Domestic Electrical Installations
• Residential Electrical Distribution
• New-Build Electrical Installations
• Consumer Unit Upgrades
• Replacement SRN Protective Devices
• Additional SRN Consumer Unit Circuits
• Appropriate Commercial Electrical Installations
• Circuits Requiring a 25A B Curve MCB

Why Choose the Live Electrical CN125B?

The Live Electrical CN125B provides a purpose-designed solution when a 25A B Curve double pole bi-directional MCB is required for a compatible Live Electrical SRN consumer unit.

Its 25A current rating and B Curve characteristic make it suitable for appropriately designed circuits requiring these protection characteristics, while the 2P configuration matches the compatible double pole SRN arrangement.

The device is also bi-directional, allowing current flow in either direction where required by the design of the compatible installation.

With a 6kA fault current rating and 230V rating, the CN125B provides the key electrical characteristics required for its intended application.

Most importantly, it is specifically intended for the Live Electrical SRN consumer unit system, helping installers and customers identify the correct MCB rather than relying on a superficially similar device from another consumer unit range.

For compatible SRN installations requiring a 25A double pole B Curve bi-directional MCB, the Live Electrical CN125B provides the appropriate solution.