Phoenix Contact N-Disconnect Terminal Block UTN 2.5, 2.5 mm², Screw Connection, Blue (3245011)

N-disconnect terminal blocks are a safety-critical component in modern electrical installations, allowing circuits to be disconnected quickly for maintenance or emergency isolation. The Phoenix Contact 3245011 is a compact N-disconnect terminal block from the UTN 2.5 series, designed for DIN rail mounting. With a screw connection and a nominal cross-section of 2.5 mm², it delivers reliable performance in control panels, switchgear, and building distribution boards.

Who is it for

This terminal block is ideal for panel builders, electricians, and maintenance professionals who require a clearly defined disconnection point for neutral conductors. It is suited for applications in industrial machinery, process control, and energy distribution, where compliance with IEC standards and high operational safety are paramount.

Main features

• N-disconnect function with visible disconnect slide for unambiguous circuit separation.
• Screw connection technology for gas-tight and vibration-resistant wiring.
• Rated voltage 500 V and rated current 24 A for robust power handling.
• Wide conductor range: 0.14 to 4 mm² (solid and stranded) or 26-12 AWG.
• Blue housing for immediate identification of the neutral conductor.
• Self-extinguishing polyamide insulating material (UL 94 V0) for enhanced safety.
• Universal mounting on DIN rail NS 35/7.5 or NS 35/15.

Specifications

• Brand: Phoenix Contact
• MPN: 3245011
• Type: N-disconnect terminal block
• Connection method: Screw connection
• Nominal cross section: 2.5 mm²
• Conductor cross section (solid): 0.14 - 4 mm²
• Conductor cross section (stranded): 0.14 - 4 mm²
• AWG size: 26 - 12
• Number of connections: 2
• Number of potentials: 1
• Colour: Blue
• Mounting type: DIN rail NS 35/7.5, NS 35/15
• Rated voltage (IEC): 500 V
• Rated current (IEC): 24 A
• Surge voltage category: III
• Pollution degree: 3
• Insulation material: PA (Polyamide)
• Flammability rating: UL 94 V0
• Stripping length: 9 mm
• Tightening torque: 0.5 - 0.6 Nm

Tips

To ensure a secure connection, cut the conductor to the correct length and strip 9 mm of insulation. Insert the conductor fully into the terminal and tighten the screw to 0.5-0.6 Nm. Always verify disconnection using the sliding mechanism before performing any service work. The terminal block is designed for use with standard mounting rails and should be installed in a suitable enclosure meeting the required protection rating.