Phoenix Contact UTN 4 neutralus atjungimo gnybtų blokas, varžtinis sujungimas, 0.14-6 mm², pilkas

When neutral line isolation during maintenance becomes a bottleneck, the Phoenix Contact UTN 4 Neutral Disconnect Terminal Block removes the need to pull wires or shut down entire circuits. Its integrated disconnect function lets technicians open the neutral path in seconds, cutting downtime and improving safety in control cabinets and distribution panels.

Why choose this terminal block

Engineered for industrial reliability, the UTN 4 handles surge voltages up to 6 kV and operates from -60 °C to 105 °C, making it suitable for harsh environments. The screw connection accepts conductors from 0.14 mm² to 6 mm² (solid) or 4 mm² (stranded), with AWG sizes 26 to 10, covering a wide range of wiring needs. Its gray polyamide housing (UL 94 V0) ensures fire safety, while pollution degree 3 and overvoltage category III guarantee performance in demanding conditions.

Key advantages

• Disconnect function for neutral conductor: quick isolation without removing wiring, ideal for testing and maintenance.
• High surge voltage rating (6 kV) and wide temperature range for robust operation.
• Compact DIN rail mounting (NS 35/7.5 and NS 35/15) simplifies integration into existing panels.
• Approvals: IEC 60947-7-1, UL, cUL, VDE, EAC – compliance with international standards.

Technical specifications

• Terminal Type: Neutral Disconnect Terminal Block
• Connection Method: Screw Connection
• Nominal Cross Section: 4 mm²
• Conductor Cross Section (Solid): 0.14 - 6 mm²
• Conductor Cross Section (Stranded): 0.14 - 4 mm²
• Conductor Cross Section (AWG): 26 - 10
• Number of Connections: 2
• Number of Positions: 1
• Color: Gray
• Insulating Material: PA (Polyamide)
• Mounting Type: DIN Rail NS 35/7.5, NS 35/15
• Rated Surge Voltage: 6 kV
• Pollution Degree: 3
• Overvoltage Category: III
• Flammability Rating (UL 94): V0
• Stripping Length: 9 mm
• Screw Thread: M3
• Tightening Torque: 0.6 - 0.8 Nm
• Operating Temperature: -60 °C to 105 °C
• Standards/Approvals: IEC 60947-7-1, UL, cUL, VDE, EAC

How to use

Mount the UTN 4 onto a DIN rail (NS 35/7.5 or NS 35/15) in your control cabinet. Connect the neutral conductor to one side and the outgoing line to the other, tightening the M3 screws to 0.6-0.8 Nm. To isolate, simply open the disconnect lever – no need to remove wires. This is particularly useful during panel maintenance, troubleshooting, or when testing insulation resistance.

Final recommendation

For electrical engineers and panel builders, the Phoenix Contact UTN 4 offers a dependable neutral disconnect solution with high safety margins and easy mounting. Its robust construction and wide operating range make it a long-term investment for industrial applications.