Fork-four-pole-busbars

Fork-Type Four-Pole Bus bar (M6) — 50–80 A, 8–16 mm²

• Four-pole fork busbar for modular devices (MCBs/RCCBs) with M6 clamping screws and 17.8 mm pitch.
• Two standard lengths: 210 mm (12 modules) and 1016 mm (56 modules); fork width/length 12 mm.
• Finger-safe per DIN EN 50274; by-the-meter or cut-to-size customization available.

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Overview

This fork-type four pole bus bar is engineered for M6 clamping screws and modular protection devices (MCBs/RCCBs). With a consistent 17.8 mm pitch, 12- or 56-module options (210 mm / 1016 mm), and fork width/length 12 mm, it delivers secure, low-resistance connections for multi-phase distribution. The profile is finger-safe (DIN EN 50274) and supports by-the-meter or cut-to-size supply to simplify panel assembly.

Cross-sections 8 / 10 / 13 / 16 mm²Reference current 50–80 AFour-pole configuration

Key Features

  • Fork geometry provides secure contact even with high tightening torque.
  • M6 screw compatibility for robust, low-resistance clamping.
  • Four-pole layout for three phases + neutral or other multi-pole schemes.
  • Finger-safe profile compliant with DIN EN 50274.
  • Standard pitch 17.8 mm aligns with 18 mm modular devices.
  • Two standard lengths: 210 mm (12 modules) and 1016 mm (56 modules).
  • Fast installation: individual terminal access without full system disruption.
  • Customizable by the meter or pre-assembled; cut-to-length service available.

Specifications

Standard data: Pitch 17.8 mm • Fork width 12 mm • Fork length 12 mm • Lengths 210 mm / 1016 mm • Finger-safe per DIN EN 50274.

Cross Section (mm²)Distance / Pitch (mm)Width of Fork (mm)Length of Fork (mm)ModulesLength (mm)Reference Current
817.812121221050A
1017.812121221063A
1317.812121221070A
1617.812121221080A
817.8121256101650A
1017.8121256101663A
1317.8121256101670A
1617.8121256101680A

Notes: compliant with DIN EN 50274 (finger-safe). Other pitches such as 17.6 mm or 27 mm may be available to order.

Dimension

Fork-Type Four-Pole Bus bar dimension

Applications

  • Modular installation devices (MCBs, RCCBs).
  • Four-pole power distribution in main/branch panels.
  • Industrial control and distribution boards.
  • Commercial building electrical systems.
  • Residential distribution boards.

Why Choose Us

  • Quality materials: high-conductivity copper and robust finish for low temperature rise.
  • Safety first: finger-safe profile, DIN EN 50274 conformity, verified pitch & clearances.
  • OEM-friendly: cut-to-size, special cross-sections, labeling and packaging options.
  • On-time supply: stable lead times and export-ready documentation.

FAQ

What devices are compatible with this four pole  bus bar?
It is intended for modular protection and switching devices using M6 clamping screws, such as MCBs and RCCBs in four-pole configurations.
How do I choose the cross-section (8/10/13/16 mm²)?
Select by reference current and allowable temperature rise. Quick guide: 8 mm² ≈ 50 A, 10 mm² ≈ 63 A, 13 mm² ≈ 70 A, 16 mm² ≈ 80 A. Always verify against your system conditions.
What is the pitch and why does it matter?
The standard pitch is 17.8 mm, matching 18 mm modular device spacing for quick alignment and clean layouts.
Is the busbar finger-safe?
Yes. The profile is finger-safe in accordance with DIN EN 50274 when installed as specified.
Can I get custom lengths or by-the-meter supply?
Both options are available. We can ship full lengths by the meter or pre-cut to your requested module counts.
What tightening torque should I use for M6 screws?
Follow the device manufacturer’s torque recommendation for the M6 terminal; the fork geometry maintains a secure, low-resistance joint.

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Tell us your required length, module count, cross-section, quantity, and delivery terms.

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