Power distributor DDB-4C400 series

secureDIN rail

Description
Four-pole staged distribution block 400 A available in 10-connection and 16-connection versions, designed for power distribution in high-power three-phase with neutral installations. Staged architecture simplifies connection organization and terminal access.

Electrical characteristics

• Rated current : 400 A
• Rated voltage : 690 V AC
• Number of poles : 4
• Impulse withstand voltage (Uimp) : 8 kV
• Peak short-circuit current (Ipk) : DDB-410C400 – 30 kA
  DDB-416C400 – 40 kA
• Connections per bar (type) : DDB-410C400 – 10 connections : 1 x M8 / 9 x M6
  DDB-416C400 – 16 connections : 1 x M8 / 15 x M6

Physical characteristics

• Conductor block : high-conductivity copper
• Enclosure : PA66 UL94-V0
• Cover : removable protection
• Mounting : DIN rail or surface mounting
• Delivery state : supplied assembled
• Overall dimensions (L x H x D) : DDB-410C400 – 280 x 150 x 116 mm
  DDB-416C400 – 420 x 150 x 116 mm
• Bar dimensions : DDB-410C400 – 25 x 6 x 248 mm
  DDB-416C400 – 25 x 6 x 384 mm

Features
The 400 A four-pole staged distribution blocks are engineered for power distribution in high-power three-phase with neutral systems. The staged layout enables clear, structured connection routing, easing wiring and terminal access. Fork-lug connections provide flexible termination options and remove constraints related to conductor cross-sections.

Applications
Suitable for industrial and commercial environments requiring management of high power: main electrical cabinets, distribution boards, multi-feed installations. Staged design for optimized integration into complex systems.

Usage recommendations

• Use appropriate fork lugs to ensure reliable and secure terminations.
• Follow recommended torque values for connections to maintain optimal conductivity.
• Disconnect power before any intervention.
• Organize wiring using the staged structure to facilitate access and maintenance.
• Regularly check connection tightness and component condition.
• Do not exceed specified Ipk and Uimp values to ensure safety and longevity.

Variants and order codes
Order code | Pole type | Rated current | Number of outputs | Stock status
DDB-410C400 | Four-pole staged | 400 A | 10 | in stock
DDB-416C400 | Four-pole staged | 400 A | 16 | in stock

Technical specifications

• Model reference: DDB-4C400 (variants DDB-410C400 and DDB-416C400)
• Rated current: 400 A
• Rated voltage: 690 V AC
• Poles: 4
• Uimp: 8 kV
• Peak short-circuit current: 30 kA (DDB-410C400) / 40 kA (DDB-416C400)
• Connections per bar: DDB-410C400 – 1 x M8 / 9 x M6 ; DDB-416C400 – 1 x M8 / 15 x M6
• Conductor material: high-conductivity copper
• Enclosure: PA66 UL94-V0
• Protection: removable cover
• Mounting: DIN rail or surface mounting
• Delivered: assembled
• Dimensions (L x H x D): 280 x 150 x 116 mm (10 outputs); 420 x 150 x 116 mm (16 outputs)
• Bar dimensions: 25 x 6 x 248 mm (10 connections); 25 x 6 x 384 mm (16 connections)