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2843707 Cembre DB250-11/1N SINGLE POLE DISTRIBUTION BLOCK
Cembre 2843707 DB250-11/1N single-pole distribution block rated at 250 A, with one incoming terminal, 11 outgoing connections and DIN rail or panel mounting.
£40.08
Why Choose the Cembre 2843707 DB250-11/1N Single Pole Distribution Block?
The Cembre 2843707 DB250-11/1N is a heavy-duty single-pole power distribution block designed to distribute one incoming electrical supply across multiple outgoing circuits. Part of the professional Cembre DBLOCK series, it provides an organised and dependable wiring solution for industrial control panels, switchboards and low-voltage power distribution assemblies.
Rated for an operating current of 250 A, the DB250-11/1N combines one high-capacity incoming terminal with 11 outgoing connections. Its direct-clamping terminals, conical conductor entry points and pre-loosened captive screws simplify cable installation while helping create secure, stable and low-resistance electrical connections.
The conductive body is manufactured from electrolytically tin-plated brass for excellent conductivity and corrosion resistance. A halogen-free PA6.6 insulating body and transparent polycarbonate cover provide robust electrical insulation, visibility of the connections and IP20 protection. The block may be mounted on a standard 35 mm DIN rail or directly onto a panel.
Key Advantages
- Heavy-duty single-pole power distribution block.
- 250 A operating current for demanding installations.
- One incoming connection with 11 outgoing ways.
- Direct-clamping terminals support fast and secure wiring.
- Electrolytically tin-plated brass conductor body.
- Suitable for 35 mm DIN rail or panel mounting.
Key Features
- Cembre DB250-11/1N DBLOCK distribution block.
- 250 A rated operating current.
- Single-pole design with 11 outgoing terminals.
- 1000 V voltage rating.
- 24.5 kA rated short-time withstand current.
- 51 kA rated peak withstand current.
- Transparent protective polycarbonate cover.
- Halogen-free, UL94 V0 self-extinguishing construction.
Reliable High-Current Power Distribution
Power distribution blocks provide a central point for dividing a large incoming conductor into several smaller outgoing circuits. This reduces wiring congestion, limits the need for multiple cable joints and helps produce a cleaner, more accessible electrical panel.
The Cembre DB250-11/1N uses direct-clamping connections with captive screws and conical conductor entries to make wiring faster and more consistent. Its high current and withstand ratings make it suitable for demanding industrial systems where dependable power distribution and mechanical connection strength are essential.
Typical Applications
- Industrial power and control panels.
- Low-voltage distribution switchboards.
- Motor control centres.
- Machinery and factory automation systems.
- Renewable energy and charging installations.
- OEM electrical equipment and panel building.
Technical Specifications
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| Product Series | Cembre DB | |
|---|---|---|
| Mounting Type | DIN rail, Panel | |
| Current | 250 A | |
| Phase | Single Phase | |
| IP Rating | IP20 | |
| Poles | 1-pole | |
| Manufacturer | Cembre | |
| Series | DBLOCK DB/1N | |
| Model | DB250-11/1N | |
| Manufacturer part number | 2843707 | |
| Product type | Single-pole distribution block | |
| Operating current | 250 A | |
| Number of poles | 1 | |
| Number of outgoing ways | 11 | |
| Voltage rating | 1000 V | |
| 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 × 35 to 120 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 | |
| Input hole | 1 × 15 mm | |
| Output holes | 4 × 6.1 mm, 5 × 6.8 mm and 2 × 9 mm | |
| Clamping type | Direct clamping | |
| Conductor body material | Brass | |
| Conductor surface treatment | Electrolytic tin plating | |
| Insulating body material | Polyamide PA6.6 | |
| Cover material | Transparent polycarbonate | |
| Clamping element material | Zinc-plated steel | |
| Flammability rating | UL94 V0 | |
| Halogen free | Yes | |
| Ingress protection | IP20 | |
| Dimensions (H × W × L) | 96 × 46 × 50 mm | |
| Mounting type | 35 mm DIN rail or panel mounting | |
| Approvals | CE, UKCA and UL recognised | |
| Applicable standards | EN 60947-7-1 and UL 1059 |
Frequently Asked Questions
What is the Cembre 2843707 used for?
It is used to distribute one high-current incoming electrical supply to multiple outgoing circuits within control panels, switchboards and power distribution equipment.
What is the current rating of the DB250-11/1N?
The distribution block has a rated operating current of 250 A.
How many outgoing connections are provided?
The Cembre DB250-11/1N provides 11 outgoing connections from one incoming terminal.
What conductor sizes can be connected?
The incoming terminal accepts conductors from 35 to 120 mm². Its outgoing terminals accommodate conductor sizes ranging from 2.5 to 35 mm², depending on the selected connection.
How is the distribution block mounted?
It can be installed on a standard 35 mm DIN rail or fixed directly to a mounting panel using suitable screws.
Trusted for Industrial Power Distribution
Cembre DBLOCK distribution blocks are trusted by panel builders, electrical engineers and machinery manufacturers to provide safe, organised and reliable high-current power distribution within industrial electrical systems.
