Power distributor DDB-4BE125 series

IP20DIN rail

Overview

• Four-pole distribution block 125 A designed for power distribution on three-phase networks with neutral. Available with 7, 11 or 15 outputs. DIN-rail or surface mounting. Compliant with EN 60947-7-1.

Electrical characteristics

• Rated current: 125 A
• Rated voltage: 500 V AC
• Number of poles: 4 (four-pole)
• Variants (number of outputs and terminal geometry):
  • DDB-407BE125 – 7 outputs: 1 x Ø8.5 mm / 1 x Ø7.5 mm / 5 x Ø5.3 mm
  • DDB-411BE125 – 11 outputs: 2 x Ø8.5 mm / 2 x Ø7.5 mm / 7 x Ø5.3 mm
  • DDB-415BE125 – 15 outputs: 2 x Ø8.5 mm / 2 x Ø7.5 mm / 11 x Ø5.3 mm
• Tightening torque: 2–3 Nm
• Peak short-circuit current (Ipk): 20 kA
• Withstand current (Icw): 4.5 kA

Accepted cable sections

• For Ø8.5 mm terminal: flexible with ferrules 10–25 mm² / solid 10–35 mm²
• For Ø7.5 mm terminal: flexible with ferrules 6–16 mm² / solid 10–25 mm²
• For Ø5.3 mm terminal: flexible with ferrules 1.5–6 mm² / solid 2.5–6 mm²

Physical characteristics

• Conductor block: high-conductivity copper
• Screws: zinc-plated steel
• Housing: PA66-V0 base RAL7035 with removable translucent grey cover
• Mounting: DIN rail or surface
• Protection: IP20
• Insulation: insulating plate between poles and at the housing base (isolates the DIN rail)
• Dimensions (L x H x D): 64 x 90 x 50 mm (DDB-407BE125); 100 x 90 x 50 mm (DDB-411BE125); 130 x 90 x 50 mm (DDB-415BE125)

Functions and applications

• Distributes and centralizes power in three-phase installations with neutral, reducing losses thanks to the high-conductivity copper block.
• Modular design eases wiring and maintenance in distribution panels and multi-feed enclosures.
• Typical applications: commercial buildings, industrial sites, distribution boards, workshops and any environment requiring reliable, secure power distribution.

Usage recommendations

• Respect the recommended cable sections for each terminal type.
• Use ferrules on flexible conductors to ensure reliable contact.
• Apply the recommended tightening torque (2–3 Nm) to limit heating.
• Disconnect power before any intervention.
• Periodically check tightening and mechanical integrity.
• Observe Ipk and Icw values to avoid overloads.

Variants and order codes
DDB-407BE125 | Four-pole | 125 A | 500 V | 7 outputs | instock
DDB-411BE125 | Four-pole | 125 A | 500 V | 11 outputs | instock
DDB-415BE125 | Four-pole | 125 A | 500 V | 15 outputs | instock


Technical characteristics / specifications

• Rated current: 125 A
• Rated voltage: 500 V AC
• Poles: 4 (four-pole)
• Peak short-circuit current (Ipk): 20 kA
• Icw: 4.5 kA
• Protection index: IP20
• Materials: high-conductivity copper conductor, PA66-V0 housing
• Mounting: DIN rail or surface
• Dimensions vary by model: 64 x 90 x 50 mm / 100 x 90 x 50 mm / 130 x 90 x 50 mm