Contactum DDB Metering/Surge Protection Enclosure – 7 Way IP4X Steel Extension Box | DDB-M/SENC

Lockable Steel Metering and Surge Protection Extension Enclosure for Contactum Defender B Distribution Boards

The Contactum DDB-M/SENC Metering/Surge Protection Enclosure is a robust steel extension enclosure designed for use with compatible Contactum Defender DDB three-phase distribution boards.

Part of the Contactum Defender B Board range, this purpose-designed enclosure provides additional space for installing compatible electrical metering equipment, surge protection devices (SPDs), or a combination of both.

Manufactured from durable steel, the DDB-M/SENC features a lockable steel door, surface-mounted construction and an IP4X ingress protection rating, making it suitable for appropriately designed indoor commercial and industrial electrical installations.

The enclosure is designed to be assembled beneath compatible Contactum TP&N distribution boards, providing a coordinated extension to the existing electrical distribution system.

Its versatile configuration allows the installation of:

• 1 x Single Channel Metering Kit
• 1 x Surge Arrestor Kit
• 1 x Single Channel Metering Kit and 1 x Surge Arrestor Kit together

This flexibility makes the enclosure particularly useful for electrical installations requiring energy monitoring, additional surge protection or both functions within a dedicated extension housing.

The Contactum DDB-M/SENC is specified with 7 outgoing ways and is designed for systems operating at 220–415V AC.

Its durable 1.2mm steel cabinet and door construction provides a strong enclosure for compatible electrical distribution equipment.

The lockable cover helps restrict unauthorised access to the installed electrical components, making it suitable for commercial electrical cupboards, plant rooms and other managed electrical environments.

With dimensions of 415mm wide x 316mm high x 126mm deep, the DDB-M/SENC provides a practical enclosure for professional distribution board installations.

The enclosure is designed for operation in ambient temperatures from -5°C to +40°C, with a 24-hour average temperature not exceeding 25°C.

Whether extending an existing Contactum Defender distribution board or installing a new three-phase electrical distribution system, the Contactum DDB-M/SENC Metering/Surge Protection Enclosure offers a durable, secure and flexible solution.

Important: This product is an extension enclosure. Metering kits and surge protection devices must be selected separately unless explicitly included in the supplier's product package.

Key Features

• Contactum DDB Metering/Surge Protection Enclosure
• Manufacturer Part Number: DDB-M/SENC
• Part of the Contactum Defender B Board range
• Designed for compatible Contactum DDB distribution boards
• Suitable for three-phase distribution board installations
• Dedicated enclosure for metering and surge protection equipment
• Can accommodate one single-channel metering kit
• Can accommodate one compatible surge arrestor kit
• Supports a combination of metering and surge protection equipment
• 7 outgoing ways
• Robust steel construction
• 1.2mm steel cabinet
• 1.2mm steel door
• Lockable steel cover
• Helps restrict unauthorised access
• IP4X ingress protection rating
• Rated voltage: 220–415V AC
• Designed for surface mounting
• Intended for installation beneath compatible TP&N distribution boards
• Suitable for professional electrical installations
• Ideal for commercial and industrial distribution systems
• Suitable for electrical plant rooms and distribution cupboards
• Dimensions: 415mm (W) x 316mm (H) x 126mm (D)
• Operating temperature: -5°C to +40°C
• Approximate net weight: 6.59kg
• Compatible with selected Contactum metering and SPD kits
• Suitable for new installations and distribution board upgrades

Dedicated Metering and Surge Protection Extension Enclosure

The Contactum DDB-M/SENC is designed to extend compatible Defender B Board electrical distribution systems.

It provides a dedicated housing for additional metering and surge protection equipment without requiring a separate, unrelated enclosure.

This makes it particularly useful for installations where the electrical distribution board requires additional functionality.

Benefits of the Extension Enclosure

• Dedicated space for compatible metering equipment
• Suitable for compatible surge protection devices
• Supports combined metering and SPD installations
• Designed to integrate with Contactum DDB distribution boards
• Provides a coordinated electrical distribution arrangement
• Suitable for commercial installations
• Practical for electrical refurbishment projects
• Helps organise associated electrical equipment

The DDB-M/SENC is a purpose-designed accessory for the Contactum Defender distribution board system.

Flexible Metering and Surge Protection Configuration

One of the main advantages of the Contactum DDB-M/SENC is its flexible equipment configuration.

According to Contactum's Defender B Board documentation, the enclosure can be fitted with either a single-channel metering kit, a surge arrestor kit, or both together.

Configuration 1: Single-Channel Metering

The enclosure can accommodate:

1 x Compatible Single-Channel Metering Kit

This configuration is suitable for installations requiring electrical energy monitoring.

Configuration 2: Surge Protection

The enclosure can accommodate:

1 x Compatible Surge Arrestor Kit

This configuration provides dedicated space for compatible surge protection equipment.

Configuration 3: Combined Metering and Surge Protection

The enclosure can accommodate:

1 x Compatible Single-Channel Metering Kit

Plus

1 x Compatible Surge Arrestor Kit

This combined arrangement is useful where both energy monitoring and surge protection are required.

Installation Benefits

• Flexible equipment selection
• Suitable for different electrical distribution requirements
• Supports metering upgrades
• Supports surge protection upgrades
• Compatible with purpose-designed Contactum accessories
• Practical for commercial electrical systems

Important: The DDB-M/SENC is the enclosure itself. The appropriate metering and surge protection kits must be specified for the installation.

Compatible with Contactum Defender B Distribution Boards

The Contactum DDB-M/SENC is designed for use with compatible Contactum Defender DDB TP&N distribution boards.

The enclosure is intended to be assembled onto the bottom of the distribution board.

This provides a coordinated extension for additional electrical equipment.

Benefits of Defender Compatibility

• Designed for Contactum DDB distribution systems
• Coordinated extension enclosure
• Suitable for three-phase installations
• Supports compatible metering equipment
• Supports compatible surge protection equipment
• Practical for distribution board upgrades
• Suitable for professional electrical contractors

Compatibility should be confirmed against the exact distribution board model and the current Contactum installation instructions.

Robust 1.2mm Steel Construction

The Contactum DDB-M/SENC features a durable steel housing designed for professional electrical installations.

Both the cabinet and the door are manufactured using 1.2mm steel.

This provides a robust enclosure for compatible electrical distribution equipment.

Benefits of Steel Construction

• Durable metal housing
• Suitable for commercial electrical environments
• Robust cabinet design
• Strong steel door
• Practical for plant rooms
• Suitable for distribution cupboards
• Designed for fixed electrical installations
• Professional enclosure construction

The steel housing makes the DDB-M/SENC a practical choice for installations where durability and equipment protection are important.

Lockable Steel Door for Restricted Access

The Contactum DDB-M/SENC includes a lockable steel door.

This provides an additional level of access control for the equipment installed within the enclosure.

The locking arrangement is particularly useful in commercial and industrial environments where electrical distribution equipment should only be accessed by authorised personnel.

Benefits of the Lockable Door

• Helps restrict unauthorised access
• Suitable for managed electrical installations
• Durable steel construction
• Practical for commercial buildings
• Useful in plant rooms
• Suitable for electrical distribution cupboards
• Provides a professional enclosure finish

Important: A lockable door does not replace the need for electrical isolation, safe working procedures or appropriate access control arrangements.

IP4X Ingress Protection Rating

The Contactum DDB-M/SENC has an IP4X ingress protection rating.

This indicates protection against the ingress of solid objects larger than 1mm.

The enclosure does not have a specified water ingress protection rating.

Benefits of IP4X Protection

• Protection against specified solid-object ingress
• Suitable for appropriate indoor electrical installations
• Practical for distribution board environments
• Suitable for commercial electrical cupboards
• Supports professional equipment enclosure requirements

Important IP4X Information

The DDB-M/SENC is not intended for exposed outdoor use or environments where water ingress protection is required.

The installation location must be assessed for environmental suitability.

Designed for 220–415V AC Distribution Systems

The Contactum DDB-M/SENC is specified for electrical distribution systems with a rated voltage of 220–415V AC.

It is designed for use as part of a compatible low-voltage electrical distribution assembly.

• Rated Voltage: 220–415V AC
• Nature of Supply: AC
• Distribution System: Compatible Contactum DDB
• Number of Outgoing Ways: 7

Important: The 220–415V rating relates to the enclosure's intended electrical distribution application. The DDB-M/SENC is not a standalone electrical protection device.

Actual circuit protection and surge protection depend on the compatible equipment installed.

Seven-Way Enclosure Configuration

The Contactum DDB-M/SENC is specified with 7 outgoing ways.

This provides the designated enclosure configuration for compatible metering and surge protection accessories.

Benefits

• Purpose-designed equipment arrangement
• Suitable for compatible Contactum kits
• Practical for electrical distribution upgrades
• Supports coordinated accessory installation
• Designed for professional electrical systems

Important: The seven-way designation should not be interpreted as seven additional general-purpose distribution circuits.

The enclosure is specifically intended for compatible metering and surge protection equipment.

All unused apertures must be fitted with suitable MCB blanks in accordance with the manufacturer's instructions.

Surface-Mounted Installation

The Contactum DDB-M/SENC is designed for surface mounting.

Its construction allows it to be installed as an extension to a compatible distribution board.

The manufacturer's documentation specifies installation beneath the relevant TP&N distribution board.

Installation Benefits

• Surface-mounted construction
• Designed for compatible Defender B Boards
• Practical for new electrical installations
• Suitable for distribution board upgrades
• Convenient for professional electrical contractors
• Coordinated equipment arrangement

The mounting surface must be suitable for the enclosure's weight and the equipment installed.

Compact 415mm Steel Extension Enclosure

The Contactum DDB-M/SENC provides a practical housing for compatible metering and surge protection equipment.

Product Dimensions

• Width: 415mm
• Height: 316mm
• Depth: 126mm

Benefits of the Design

• Coordinated with compatible Contactum distribution boards
• Suitable for electrical distribution cupboards
• Practical for plant rooms
• Provides dedicated accessory space
• Durable metal enclosure
• Surface-mounted construction

The available installation space should be checked before fitting the enclosure.

Suitable for Commercial and Industrial Installations

The Contactum DDB-M/SENC is designed for professional electrical distribution applications.

It is particularly suitable for installations where compatible Contactum distribution boards require additional metering or surge protection equipment.

Commercial Buildings

Provides a dedicated enclosure for compatible metering and surge protection equipment within commercial electrical distribution systems.

Industrial Premises

Suitable for appropriate industrial electrical installations using compatible Contactum Defender distribution boards.

Electrical Plant Rooms

The steel construction and lockable door make the enclosure suitable for managed electrical plant room environments.

Distribution Board Upgrades

The DDB-M/SENC can be used when adding compatible metering or surge protection equipment to an existing distribution system.

New-Build Projects

Suitable for new electrical distribution installations where a coordinated Contactum Defender B Board arrangement is specified.

General Product Information

• Brand: Contactum
• Manufacturer: Contactum
• Product Range: Defender B Board / DDB
• Manufacturer Part Number: DDB-M/SENC
• Product Name: DDB Metering/Surge Protection Enclosure
• Product Type: Electrical Distribution Board Extension Enclosure
• Application: Metering and Surge Protection Equipment Housing
• Compatible System: Contactum Defender DDB Distribution Boards
• Distribution Type: TP&N / Three Phase and Neutral
• Number of Outgoing Ways: 7
• Mounting Method: Surface Mounted
• Intended Position: Beneath Compatible Distribution Board

• Rated Voltage: 220–415V
• Nature of Supply: AC
• Compatible Metering Configuration: Single Channel
• Compatible Surge Protection Configuration: Single Surge Arrestor Kit
• Combined Metering and Surge Protection: Supported with Compatible Kits
• Integrated Energy Meter: Not Specified as Included
• Integrated Surge Protection Device: Not Specified as Included
• Standalone Distribution Board: No

Construction and Materials

• Housing Material: Steel
• Door Material: Steel
• Cabinet Plate Thickness: 1.2mm
• Door/Cover Plate Thickness: 1.2mm
• Door Type: Solid Steel
• Lockable Door: Yes
• Transparent Door: No
• Mounting Arrangement: Surface
• Construction: Metal Electrical Enclosure

Dimensions

• Width: 415mm
• Height: 316mm
• Depth: 126mm
• Dimensions (W x H x D): 415 x 316 x 126mm
• Approximate Net Weight: 6.594kg
• Approximate Gross Weight Including Packaging: 6.950kg

• Ingress Protection Rating: IP4X
• Ambient Operating Temperature: -5°C to +40°C
• Maximum 24-Hour Average Ambient Temperature: 25°C
• Water Ingress Protection: Not Specified
• Outdoor Installation: Not Recommended Without Suitable Additional Protection
• Suitable Environment: Appropriate Indoor Electrical Installations

Compatible Equipment

• Single Channel Metering Kit: Compatible
• Surge Arrestor Kit: Compatible
• Combined Single Channel Metering and Surge Protection: Supported
• Contactum Defender DDB Distribution Boards: Compatible Models
• Unused Apertures: Suitable MCB Blanks Required

Warranty and Packaging

• Manufacturer's Guarantee: 1 Year
• Pack Quantity: 1
• Product Weight: Approximately 6.59kg

Suitable Applications

The Contactum DDB-M/SENC Metering/Surge Protection Enclosure is suitable for professional electrical installations, including:

• Three-Phase Distribution Board Installations
• Contactum Defender B Board Systems
• Electrical Metering Installations
• Energy Monitoring Equipment Housing
• Surge Protection Installations
• Type 2 SPD Installations with Compatible Kits
• Commercial Electrical Distribution
• Industrial Electrical Distribution
• Electrical Plant Rooms
• Distribution Board Extensions
• Electrical Distribution Cupboards
• Commercial Building Refurbishments
• Industrial Electrical Upgrades
• New-Build Electrical Installations
• Electrical Infrastructure Projects
• Building Maintenance Installations
• Professional Electrical Contracting
• Distribution Board Accessory Installations
• Electrical Metering Upgrades
• Surge Protection Upgrades

Why Choose the Contactum DDB-M/SENC Metering/Surge Protection Enclosure?

The Contactum DDB-M/SENC provides a practical and durable solution for extending compatible Contactum Defender B Board electrical distribution systems.

Designed to accommodate single-channel metering equipment, surge protection equipment or both, the enclosure offers flexibility for different electrical installation requirements.

Its robust 1.2mm steel cabinet and door construction provides a durable housing, while the lockable cover helps restrict unauthorised access.

The enclosure features an IP4X protection rating and is specified for 220–415V AC distribution systems, making it suitable for appropriately designed indoor commercial and industrial installations.

With 7 outgoing ways and dimensions of 415 x 316 x 126mm, the DDB-M/SENC provides a purpose-designed extension for compatible distribution boards.

The surface-mounted construction and coordinated Defender design make it suitable for both new installations and distribution board upgrades.

For electrical contractors, commercial maintenance teams and industrial installation projects, the Contactum DDB-M/SENC Metering/Surge Protection Enclosure offers a reliable solution for housing compatible electrical metering and surge protection accessories.