HAGER Main Line Terminal K03SN 1-polis 1x25/4x16 mm² pilkas

When you need to distribute a hefty 100 A current from a single main line to four branch circuits, the HAGER K03SN main line terminal delivers reliable performance in a compact, single-pole design. Its screw connection accommodates a 25 mm² main conductor and up to four 16 mm² branch conductors, making it ideal for demanding residential or light commercial electrical panels.

Why it stands out

• High current rating of 100 A at 400 V for robust power distribution.
• Accepts a wide range of conductor types: solid, stranded, and fine-stranded with ferrule.
• Flexible mounting: snap onto a DIN rail (TS 35) or mount with screws.
• Durable grey polyamide (PA) insulation with IP20 protection.
• Wide operating temperature range from -25 °C to +100 °C.

Who it suits

This terminal is perfect for electricians and DIY enthusiasts working on main distribution boards in homes, workshops, or small businesses. It's especially useful when you need to split a high-current main line into multiple smaller circuits safely and neatly.

Key specifications

• Number of poles: 1
• Rated voltage: 400 V
• Rated current: 100 A
• Connection type: screw
• Main conductor: 1 x 25 mm²
• Branch conductors: 4 x 16 mm²
• Stripping length: 14 mm
• Tightening torque: 2.5 Nm
• Rated impulse voltage: 4 kV
• Insulation material: polyamide (PA)
• Colour: grey
• Degree of protection: IP20
• Operating temperature: -25 °C to +100 °C
• Approvals: VDE

How to use

Mount the terminal on a standard DIN rail or screw it into place. Strip the main conductor to 14 mm and insert it into the 25 mm² terminal. Strip the branch conductors to 14 mm and insert them into the 16 mm² terminals. Tighten all screws to 2.5 Nm using a torque screwdriver. Always ensure the power is off before working on electrical connections.

Tips: For secure connections, use ferrules on fine-stranded conductors. Double-check the tightening torque to prevent loose connections that can overheat. This terminal is VDE approved, so you can trust its safety and quality for your installation.