Why Choose the Cembre 2843709 DB400-11/1N Single Pole Distribution Block?
The Cembre 2843709 DB400-11/1N is a heavy-duty single-pole power distribution block engineered for high-current industrial power distribution. As part of the professional Cembre DBLOCK series, it provides a secure and organised method of distributing a single incoming supply to multiple outgoing circuits within control panels, switchboards and power distribution systems.
With a 400 A operating current, the DB400-11/1N features one high-capacity incoming connection and 11 outgoing terminals. Direct-clamping terminals, captive screws and chamfered conductor entry holes simplify installation while maintaining secure, low-resistance electrical connections for demanding industrial applications.
The conductor body is manufactured from electrolytically tin-plated brass for outstanding conductivity and corrosion resistance. A robust halogen-free Polyamide PA6.6 body with a transparent polycarbonate cover provides excellent insulation, quick visual inspection and IP20 protection. The block can be mounted directly onto a standard 35 mm DIN rail or fixed to a panel where required.
Key Advantages
Heavy-duty single-pole distribution block.
400 A rated operating current.
One incoming connection with 11 outgoing ways.
Electrolytically tin-plated brass conductor body.
Transparent protective cover with IP20 ingress protection.
Suitable for 35 mm DIN rail or panel mounting.
Key Features
Cembre DB400-11/1N DBLOCK distribution block.
400 A operating current.
Single-pole design with 11 outgoing terminals.
1000 V rated impulse withstand voltage.
24.5 kA rated short-time withstand current (Icw).
51 kA rated peak withstand current (Ipk).
Direct-clamping terminals with captive screws.
UL94 V0 self-extinguishing insulating body.
Reliable High-Current Power Distribution
Power distribution blocks provide a central connection point for dividing a large incoming conductor into multiple outgoing circuits. This simplifies panel wiring, reduces cable congestion and improves accessibility for maintenance while maintaining secure electrical terminations.
The Cembre DB400-11/1N is designed for demanding industrial installations where high current capacity, dependable connections and efficient panel layout are essential. Its direct-clamping terminals and transparent inspection cover help speed installation while maintaining excellent electrical performance throughout the service life of the installation.
Typical Applications
Industrial power distribution panels.
Electrical switchboards.
Motor control centres.
Machine building and OEM equipment.
Factory automation systems.
Renewable energy and industrial infrastructure.
Technical Specifications
Phase
Single Phase
IP Rating
IP20
Manufacturer
Cembre
Series
DBLOCK DB/1N
Model
DB400-11/1N
Manufacturer Part Number
2843709
Product type
Single-pole distribution block
Operating current
400 A
Number of poles
1
Number of outgoing ways
11
Rated impulse withstand voltage (Uimp)
1000 V
Rated short-time withstand current (Icw)
24.5 kA
Rated peak withstand current (Ipk)
51 kA
Input connection capacity
1 × 95 to 185 mm² rigid or flexible
Output connection capacity
5 × 2.5 to 16 mm², 4 × 2.5 to 10 mm² and 2 × 6 to 35 mm² rigid or flexible
Conductor body material
Electrolytically tin-plated brass
Insulating body material
Halogen-free Polyamide PA6.6
Cover material
Transparent polycarbonate
Clamping element material
Zinc-plated steel
Flammability rating
UL94 V0
Ingress protection
IP20
Dimensions (H × W × L)
96 × 46 × 50 mm
Mounting type
35 mm DIN rail or panel mounting
Applicable standards
EN 60947-7-1 and UL 1059
Frequently Asked Questions
What is the Cembre 2843709 used for?
It is used to distribute one high-current incoming electrical supply safely to multiple outgoing circuits within industrial electrical panels and power distribution systems.
What is the operating current of the DB400-11/1N?
The distribution block has a rated operating current of 400 A.
How many outgoing connections are available?
The DB400-11/1N provides 11 outgoing terminals from a single incoming connection.
What conductor sizes can be connected?
The incoming terminal accepts conductors from 95 to 185 mm², while the outgoing terminals accommodate conductor sizes from 2.5 to 35 mm², depending on the terminal position.
How is the distribution block mounted?
It can be installed on a standard 35 mm DIN rail or mounted directly onto a panel using suitable fixings.
Trusted for Industrial Power Distribution
Cembre DBLOCK distribution blocks are trusted by panel builders, electrical engineers and industrial automation specialists to provide safe, organised and dependable high-current power distribution within modern electrical installations.
Phase
Single Phase
IP Rating
IP20
Manufacturer
Cembre
Series
DBLOCK DB/1N
Model
DB400-11/1N
Manufacturer Part Number
2843709
Product type
Single-pole distribution block
Operating current
400 A
Number of poles
1
Number of outgoing ways
11
Rated impulse withstand voltage (Uimp)
1000 V
Rated short-time withstand current (Icw)
24.5 kA
Rated peak withstand current (Ipk)
51 kA
Input connection capacity
1 × 95 to 185 mm² rigid or flexible
Output connection capacity
5 × 2.5 to 16 mm², 4 × 2.5 to 10 mm² and 2 × 6 to 35 mm² rigid or flexible
Conductor body material
Electrolytically tin-plated brass
Insulating body material
Halogen-free Polyamide PA6.6
Cover material
Transparent polycarbonate
Clamping element material
Zinc-plated steel
Flammability rating
UL94 V0
Ingress protection
IP20
Dimensions (H × W × L)
96 × 46 × 50 mm
Mounting type
35 mm DIN rail or panel mounting
Applicable standards
EN 60947-7-1 and UL 1059
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...