Defined selection basis
Published reference ratings give engineering and procurement teams a clear starting point for technical comparison.
Final distribution
ML-WDB400400 V Wall-Mounted Low-Voltage Distribution Box
Wall-mounted indoor enclosure for final low-voltage distribution circuits.
1 / 2Reference product views - final lineup follows approved project documents.
For controlled power distribution
Wall-mounted distribution board
ML-WDB400 provides a compact wall-mounted platform for final distribution. Circuit schedule, protective devices, cable space and enclosure protection are coordinated with the installation location.
- 01Wall-mounted indoor enclosure
- 02Compact reference dimensions
- 03Project-defined final circuit arrangement
Customer benefits
Clear evidence, controlled configuration and practical delivery
Benefits are expressed around the engineering and project workflow, with product claims kept tied to the documented reference.
Project-engineered configuration
Busbar, protection, interfaces and panel arrangement are confirmed against the approved single-line diagram and project documents.
Controlled evidence mapping
Available test and conformity evidence available is reviewed against the offered model, rating and construction before submission.
Documented handover
Approved drawings, inspection records and final documents are organized around the released project configuration.
Technical data
Certified reference configuration
Published values are catalogue references. The offered configuration is confirmed against the approved single-line diagram, data sheets and project interfaces.
Typical applications
Commercial buildingsResidential distributionInfrastructureIndustrial auxiliaries
System voltage / frequency400 V / 50 Hz
Rated current range10-400 A
Short-time withstand current10 kA
Rated insulation voltage690 V
Enclosure protectionIP41 / IP40
Assembly configurationWall-mounted indoor distribution enclosure
Degree of protectionIP41 / IP40 / IP31 / IP30
Rated insulation voltageUi 690 V
Outline and dimensions
Reference envelope for early layout work
Typical reference enclosure: 600 W x 250 D x 800 H mm
Final dimensions are subject to the approved general arrangement.Front view
Side view
Find out more
Technical resources
Use published documents for preliminary review. Applicability to a project offer is confirmed during technical clarification.
Product questions
What to confirm before selection
What is the published reference for ML-WDB400?
The page lists the catalogue reference configuration for ML-WDB400. Final ratings and interfaces remain subject to the approved project documents.
Are the published dimensions fixed for every project?
No. The dimensions are a documented reference envelope. Final width, depth, height and lineup arrangement depend on the selected devices, ratings, cable interfaces and approved general arrangement.
What evidence can be requested?
Test and conformity evidence available can be reviewed for applicability to the offered model and configuration. Project-specific routine verification is handled separately during manufacturing and release.
Project-specific review