Weidmuller QB 75/6.2/9/WI Cross-Connector

Technical Overview

The Weidmüller QB 75/6.2/9/WI (Part Number: 0526400000) is a 75-pole external cross-connector designed for SAK Series terminal blocks. Featuring a 6.00 mm pitch and a 27 A current rating, this uninsulated grey copper bridging bar enables efficient potential distribution across up to 75 terminals. It utilizes a direct screw-in mounting mechanism, ensuring robust electrical continuity for industrial control cabinets and automation systems. The unit has a slim 0.8 mm width profile and is designed for operating temperatures between -5°C and 40°C.

Key Features

75-pole capacity allows extensive commoning in a single continuous strip
Rated for 27 A, suitable for standard control circuit power distribution
Designed for 6.00 mm pitch terminals within the Weidmüller SAK Series
Direct screw-down mounting ensures high contact force and low resistance
Constructed from conductive copper with a standard grey finish
Compact 0.8 mm thickness minimizes impact on terminal block spacing
Wide storage temperature resilience from -25 °C to 55 °C

Technical Specification Matrix

Technical Parameter	Specification
Version	Cross-connector (terminal), screwed in
Material	Copper
Colour	Grey
Nominal Current	27 A
Number of Poles	75
Pitch	6.00 mm
Insulated	No
Mounting Type	Direct mounting (screwed in)
Height (Length)	461.3 mm
Operating Temperature	-5 °C ... 40 °C
Storage Temperature	-25 °C ... 55 °C
RoHS Compliance	Compliant
ECLASS 14.0	27-25-03-03
ETIM 9.0	EC000489
Width	0.8 mm
Depth	17.5 mm
Net Weight	25.02 g

Industrial Applications

1. High-Density Potential Distribution

Bridges up to 75 SAK series terminal blocks in a single run, creating a unified power or signal bus across large control panels.

Problem Solved

Eliminates the complexity and labor of installing individual wire jumpers between adjacent terminals, significantly reducing assembly time and failure points.

potential distributionterminal bridgingcontrol panelcross-connection

2. Industrial Signal Commoning

Provides a shared reference potential (common rail) for sensor and actuator return lines within high-density automation enclosures.

Problem Solved

Optimizes cabinet space by replacing bulky distribution blocks with a slim, screw-mounted bar that integrates directly into the terminal array.

signal commoningreference potentialautomation enclosurespace optimization

3. Vibration-Resistant Power Bridging

Delivers consistent control power to machine subsystems via a screwed-in current bar mechanism designed to withstand industrial vibration.

Problem Solved

Ensures reliable electrical continuity in dynamic machinery environments where plug-in jumpers might loosen, utilizing a secure screw fixation.

vibration resistancecurrent barmachine powersecure fixation