Power distributor DDB-4C250 series

secureDIN rail

Presentation
Staggered four-pole busbar distributors 250A 690V with high-conductivity copper conductors, available with 11 or 27 connections, connection by lugs, PA66 UL94-V0 insulating enclosure, DIN-rail or surface mounting. Product delivered assembled.

Electrical characteristics

• Rated current: 250 A
• Rated voltage: 690 V AC
• Number of poles: 4 (four-pole)
• Impulse withstand voltage (Uimp): 8 kV
• Peak short-circuit current (IPK): 30 kA (DDB-410C250); 40 kA (DDB-426C250)
• Number and type of connections per bar: DDB-410C250: 1 x M8 / 10 x M6; DDB-426C250: 1 x M8 / 26 x M6

Physical characteristics

• Conductor block: high-conductivity copper
• Enclosure: PA66 UL94-V0
• Cover: removable protection
• Mounting: DIN rail or surface
• Product: delivered assembled
• Total dimensions (L x H x D): 280 x 170 x 77 mm (DDB-410C250); 630 x 170 x 77 mm (DDB-426C250)
• Bar dimensions: 20 x 5 x 248 mm (DDB-410C250); 20 x 5 x 592 mm (DDB-426C250)

Features

• Power distribution for three-phase installations with neutral requiring a large number of outgoing circuits.
• Staggered design optimizing accessibility to connections and facilitating wiring in complex configurations.
• Connection by fork lugs for installation flexibility and to avoid constraints related to cable cross-sections.

Applications
Particularly suited to high-power industrial and commercial installations: main distribution cabinets, multi-outgoing switchboards and systems with high connection density where reliability, safety and maintainability are essential.

Usage tips

• Use appropriate fork lugs for reliable and secure connection.
• Follow correct torque practices for connections to ensure optimal conductivity.
• Disconnect power before any intervention.
• Organize wiring using the staggered structure to ease access and maintenance.
• Regularly check connection tightness and component condition.
• Do not exceed the specified IPK and Uimp values to ensure safety and service life of the installation.

Variants and order codes
Order code ; Pole configuration ; Primary current ; Number of outputs ; Stock status
DDB-410C250 ; Staggered four-pole ; 250A ; 11 ; in stock
DDB-426C250 ; Staggered four-pole ; 250A ; 27 ; in stock

Technical specifications

• Rated current: 250 A
• Rated voltage: 690 V AC
• Number of poles: 4
• Impulse withstand voltage (Uimp): 8 kV
• Peak short-circuit current (IPK): 30 kA (DDB-410C250); 40 kA (DDB-426C250)
• Connections per bar: DDB-410C250 = 1 x M8 / 10 x M6; DDB-426C250 = 1 x M8 / 26 x M6
• Conductor block: high-conductivity copper
• Enclosure: PA66 UL94-V0
• Mounting: DIN rail or surface
• Dimensions (L x H x D): 280 x 170 x 77 mm (DDB-410C250); 630 x 170 x 77 mm (DDB-426C250)
• Bar dimensions: 20 x 5 x 248 mm (DDB-410C250); 20 x 5 x 592 mm (DDB-426C250)