Phoenix Contact TB 50 I DIN Rail Feed-Through Terminal Block 50 mm² 150 A Screw Connection

The Phoenix Contact TB 50 I (Part No. 3247180) is a high-current feed-through terminal block designed to deliver reliable power distribution and wiring continuity in industrial control panels and electrical cabinets. It supports a nominal current of 150 A at up to 1000 V AC and accommodates conductors with cross sections from 16 mm² to 70 mm², making it suitable for heavy-duty electrical connections.

Featuring robust screw-type connections with M6 threaded terminals and a compact DIN rail-mountable design, this feed-through block ensures secure conductor clamping and seamless bus-through capability between rail segments. The 50 mm² rated cross section enables flexible installation of large conductors using stranded or solid wire, with ferrule support for reliable multi-wire wiring.

Constructed with traffic grey PA insulating material with UL 94 V-0 flame-resistance and tested for stringent mechanical and electrical standards, the TB 50 I also meets IEC 60947-7-1 terminal block specifications. Its compact 20 mm width and rugged build make it ideal for space-efficient control panel wiring, power distribution transitions, and sectional feed-through applications.

📌 Key Specifications

• Model: Phoenix Contact TB 50 I (3247180)

• Terminal Type: Feed-through terminal block

• Rated Voltage: 1000 V AC

• Rated Current: 150 A

• Rated Cross Section: 50 mm²

• Conductor Range: Rigid 16–70 mm² / Flexible 25–70 mm²

• Connection Method: Screw connection (M6)

• Mounting: DIN Rail NS 35/7.5 or NS 35/15

• Width: 20 mm

• Height: 70.5 mm

• Depth: ~81.5 mm on NS 32, ~83.5 mm on NS 35/15

• Color: Traffic grey B (RAL 7043)

• Standards: IEC 60947-7-1 compliance