Phoenix Contact TB-EE-DB 400/1+11 DIN Rail Distribution Block 400 A 12-Way Screw Terminals

The Phoenix Contact TB-EE-DB 400/1+11 (Part No. 1798055) is a heavy-duty DIN rail distribution block engineered for high-current power distribution and clean wiring in industrial control panels, machinery, and power systems. It supports a thermal continuous current of 400 A and is rated up to 1000 V AC for robust performance in demanding electrical environments.

This block features 12 screw-type terminals — one main feed and eleven load connections — delivering organized multi-circuit power splitting without clutter. The block accepts larger conductors (rigid up to ~185 mm²) on the line side and a range of load conductor sizes via screw connections, giving flexibility in wiring configurations. Designed for DIN rail (NS 35/7.5 or NS 35/15) mounting or direct panel mounting, its durable dark gray housing with UL 94 V-0 material ensures dependable insulation and long service life.

📌 Key Specifications

• Model: Phoenix Contact TB-EE-DB 400/1+11 (1798055)

• Nominal Voltage: Up to 1000 V AC (suitable for high-voltage panels)

• Nominal Current: ~309 A

• Thermal Continuous Current: 400 A

• Number of Connections: 12 (1 main + 11 loads)

• Connection Method: Screw terminals (line M16; load M8/M6)

• Line Conductor Size: Rigid ~95–185 mm² / flexible (with ferrule) ~95–150 mm²

• Load Conductor Size: Rigid ~2.5–35 mm² / flexible with ferrule ~2.5–25 mm²

• Mounting: DIN rail NS 35/7.5 or NS 35/15 or direct panel mounting

• Housing: Dark gray thermoplastic, UL 94 V-0 rated

Built for efficient power splitting and multi-circuit distribution, this distribution block is ideal for industrial automation, electrical panels, and heavy-duty power wiring applications.