Power distributor DDB-4B80 series

IP20DIN rail

Overview
Four-pole distribution blocks for power distribution on three-phase networks with neutral. Constructed with a high-conductivity copper busbar, PA66-V0 RAL7035 base and removable translucent grey cover. Mountable on DIN rail or surface-mounted, protection rating IP20. Compliant with EN 60947-7-1.

Electrical characteristics

• Rated current: 80 A
• Rated voltage: 500 V AC
• Number of poles: 4
• Connections per pole and hole diameters: DDB-408B80 – 8 connections: 3 x Ø5.5 mm / 5 x Ø4.5 mm; DDB-413B80 – 13 connections: 5 x Ø5.5 mm / 8 x Ø4.5 mm
• Acceptable cable sections: for Ø5.5 mm: flexible with ferrules 1.5–10 mm² / solid 2.5–16 mm²; for Ø4.5 mm: flexible with ferrules 0.75–6 mm² / solid 1.5–10 mm²
• Tightening torque: 2 Nm (Ø5.5 mm); 1.2 Nm (Ø4.5 mm)
• Peak short-circuit current (Ipk): 20 kA
• Icw: 4.5 kA

Physical characteristics

• Busbar: high-conductivity copper
• Screws: zinc-plated steel
• Enclosure: base PA66-V0 RAL7035 with removable translucent grey cover
• Mounting: DIN rail or surface-mounted
• Protection: IP20
• Insulation: insulating barrier between poles and on the enclosure bottom
• Dimensions (L x H x D): 64 x 90 x 50 mm (DDB-408B80); 100 x 90 x 50 mm (DDB-413B80)

Functions
These distribution blocks enable power feeding to multiple outgoing circuits in three-phase installations with neutral. They provide reliable current distribution to several branches while ensuring safety and performance through high-conductivity copper conductors.

Applications

• Commercial and industrial electrical installations
• Electrical cabinets and sub-distribution boards
• Multi-circuit installations requiring several three-phase tap-offs

Usage advice

• Respect the permissible cable cross-sections
• Apply the specified tightening torque to each terminal
• Disconnect power before any intervention
• Use ferrules on flexible conductors
• Regularly check terminal tightness

Variants and order codes (table)
Order code | Number of poles | Primary current | Number of outputs | Stock status
DDB-408B80 | Four-pole | 80 A | 8 | in stock
DDB-413B80 | Four-pole | 80 A | 13 | in stock

Technical specifications

• Rated current: 80 A
• Rated voltage: 500 V AC
• Poles: 4 (four-pole)
• Connections: 8 or 13 depending on variant (see Ø5.5 mm and Ø4.5 mm details)
• Admissible cable sections: flexible, solid and with ferrules according to hole diameter (see details)
• Tightening torque: 2 Nm (Ø5.5 mm); 1.2 Nm (Ø4.5 mm)
• Peak short-circuit current (Ipk): 20 kA
• Icw: 4.5 kA
• Materials: high-conductivity copper (busbar); zinc-plated steel screws; PA66-V0 enclosure
• Protection rating: IP20
• Mounting: DIN rail or surface-mounted
• Dimensions: 64 x 90 x 50 mm (DDB-408B80); 100 x 90 x 50 mm (DDB-413B80)