Phoenix 3004388 UK 5 N BU Feed-Through Terminal Block, Screw Connection, 6 mm², 800 V, 41 A, Blue

Rated for 41 A and 800 V IEC, the Phoenix 3004388 UK 5 N BU feed-through terminal block handles demanding industrial wiring with a 6 mm² nominal cross section. Its screw connection and compact DIN-rail design make it a dependable choice for control cabinets and distribution boards.

Overview

The Phoenix 3004388 UK 5 N BU is a single-level feed-through terminal block engineered for secure, high-current connections. With a nominal cross section of 6 mm² and support for solid conductors up to 6 mm² (stranded up to 4 mm²), it accommodates a wide range of wiring. The screw connection with M3 thread and 0.6–0.8 Nm tightening torque ensures a vibration-resistant, maintenance-free joint. Mounting on standard DIN rails (NS 35/7.5 or NS 35/15) allows quick installation in any enclosure.

What stands out

• High current capacity: 41 A IEC (40 A UL/CSA) for power distribution.
• Wide conductor range: 0.2–6 mm² solid, 0.2–4 mm² stranded, 24–10 AWG.
• Robust polyamide housing with UL 94 V0 flammability rating.
• Operating temperature from -60 °C to 105 °C for harsh environments.
• Blue colour for easy circuit identification.

Technical details

• Connection type: Screw connection
• Number of connections: 2
• Number of positions: 1
• Nominal cross section: 6 mm²
• Nominal voltage: 800 V (IEC), 600 V (UL/CSA)
• Nominal current: 41 A (IEC), 40 A (UL/CSA)
• Wire size (solid): 0.2–6 mm²
• Wire size (stranded): 0.2–4 mm²
• AWG range: 24–10
• Insulating material: Polyamide (PA)
• Colour: Blue
• Mounting type: DIN rail (NS 35/7.5, NS 35/15)
• Stripping length: 9 mm
• Screw thread: M3
• Tightening torque: 0.6–0.8 Nm
• Operating temperature: -60 °C to 105 °C
• Flammability rating: UL 94 V0
• Pollution degree: 3

Our verdict

The Phoenix 3004388 UK 5 N BU delivers reliable, high-current feed-through connections in a compact, DIN-rail-mountable package. Its broad conductor compatibility and rugged construction make it a solid choice for industrial control and power distribution applications.