Company Overview

Jean Müller, established in 1897, specializes in electrical safety devices including fuses, low-voltage switchgear, and energy management systems. The company serves utilities, industries, and control system manufacturers worldwide, adhering to IEC and national standards with ISO 9001 certification. Their expertise includes consulting, implementation, and after-sales support.

Product Lines and Solutions

• Meter Connection Cabinets: Leading market products featuring IP54-rated covers, integrated cable channels for EMC-optimized wiring, and anti-theft design.
• System Electronics (Powerlizer): Energy analysis and monitoring systems for industrial and public energy distribution.
• Industrial Power Distribution: Overload protection components for diverse sectors, including SASIL and COSMO systems.
• Energy Distribution for Utilities: Comprehensive products covering the public power supply chain.

Meter Connection Cabinets - Key Features

• Proven housing technology with utility acceptance.
• IP54 covers with raised screws for easy sealing and mounting.
• Hinged doors in 450mm and 300mm heights.
• Minimal parts for easy on-site modification and mounting.
• Integrated metal cable channels for clear, protected, EMC-optimized wiring.
• Ultrasonically welded conductor ends to prevent loose ferrules.
• Minimum wiring cross-section of 10mm².
• Stackable, color-coded main line branch terminals for flexible network form changes.
• Removable upper connection stub for easier installation.
• Traceability via manufacturing codes and visual cabinet type labels.
• Permanent wiring diagrams inside doors.
• Component partitioning to prevent electricity theft.
• Short delivery times and custom solutions available.

Meter Connection Cabinet Types and Specifications

Various standard types are detailed with configurations for 1 or 2 meter spaces, 4- or 5-wire systems, 250A busbars, IP54 covers, and network forms such as TN-C, TN-C-S, and TT. Features include main fuse switches, circuit breakers, and main line branch terminals sized 25mm² or higher. Additional options include TSG (control line) spaces with fuse protection and mounting plates or distribution fields.

Regional Variants and Utility-Specific Models

Cabinets are customized for German regional utilities grouped into North-West, North-East, South-East, and South-West regions, each with specific models and article numbers. Coordination with local network operators (VNB) is required before installation.

Additional Product Categories

• Transformer Meter Cabinets with insulated housings.
• Street Lighting Cabinets with automation components.
• Multi-Utility Cabinets combining electricity, gas, and water meters.
• 4-Pole Network Separation Points with safety features.
• Cable Distribution Cabinets and NH Fuse Rails with modular designs.
• Flat Cable Distribution Cabinets for specialized applications.
• Standard Bases and NH Fuse Rail Installation Units.
• House Connection Boxes and Columns for indoor and outdoor use.
• Various accessories including switches, terminals, and locking components.

Service and Support

Jean Müller provides extensive service networks across Europe and worldwide, including electronic ordering (EDI), datasheets, DXF drawings, and updates via their website. Their certified quality management ensures compliance and reliable performance.

Technical Specifications of Meter Connection Cabinets

• Wiring systems: Mainly 4-leader and 5-leader configurations.
• Busbar rating: Standard 250A.
• Meter spaces: Typically 450mm wide, with up to 2 slots plus TSG spaces.
• Protection devices: Fuse elements (D01, NH00), load switches (D0, LS switches) with ratings up to 63A and 25kA breaking capacity.
• Connection terminals: Main line branch terminals from 1-pole 25mm² to 5-pole 150mm².
• Enclosures: KVS housings with IP54-rated hoods and doors for weather protection.
• Additional features: Control lights, seasonal switches, mounting plates, and distributor fields.

Network Forms and Utility-Specific Variants

Designed for TN-C, TN-C-S, and TT network forms with specific configurations for utilities such as E.ON, Vattenfall, EnviaM, RWE, and others. Coordination with network operators is mandatory.

Key Product Variants Summary

Protection and Safety Features

• Fuse elements and load switches ensure circuit protection and operational safety.
• Sealable fuse elements and control terminals enhance tamper resistance.
• IP54-rated enclosures protect against dust and water ingress for outdoor use.
• Double locking systems with locking dummies provide enhanced security.

Recommendations and Notes

• Consult local distribution network operators (VNB) before installation.
• Select cabinet size, wiring type, and components based on network form and utility requirements.
• Optional mounting plates and distributor fields allow customization.
• Some variants include seasonal switches and control lights for advanced control.

Regional Focus: SÜD-WEST Region

Cabinets designed for TN-C and TN-S networks with single or double meter positions, robust KVS housings, IP54 protection, main switches, fuse elements, and busbars rated up to 250A. Special applications include fiberglass-reinforced polyester enclosures for photovoltaic and biogas plants with double locking and high current suitability.

Current Transformer Meter Cabinets

Manufactured by Seeliger and Deppe, these support indirect metering with multiple feed and outgoing busbars, insulated housings (IP55), and customizable configurations.

Street Lighting Cabinets

Include meter positions, load switching devices, distribution fields with fuse or circuit breaker protection, contactors, group switches, timers, and dusk sensors for automated control. Built with 5-wire busbar systems rated at 250A and optional IP54 covers.

Multi-Utility Cabinets

Combine electricity, gas, and water meters in a single enclosure with house connection boxes, isolating components, 4-wire busbars, and prepared mounting plates. Coordination with network operators is required.

Network Disconnection Points

4-pole NH fuse load disconnectors with steel frame terminals and safety features such as early closing and late opening neutral poles. Installation requires network operator consultation.

Cable Distribution Cabinets and NH Fuse Rails

• Standard KVS cabinets with fiberglass-reinforced polyester enclosures, modular design, sizes 00 to 2, 4-10 mounting units, 3-point locking, and busbars rated 400A or 630A.
• Flat cabinets with reduced depth for specialized applications, integrated parts connected by breakable screws, bottom cable entry with front access.
• Foundations designed for burial with cable fixing rails and accessories.
• NH fuse rails with three-pole fuse holders, side or rear outgoing contacts, and optimized contact systems.

Material and Construction

NH fuse holders made from glass fiber reinforced polyamide or polyester, featuring special fuse handles, positioning aids, touch-safe live parts, and tinned discharge rails for optimal current transmission and temperature management.

NH Fuse Load Switch Strips

3-pole fuse load disconnect switches with mechanically guided fuse inserts, full touch protection, side ventilation, low power loss, high switching capacity, and short-circuit resistance. Available in 1- or 3-pole versions, some support current transformers without installation depth changes. Rated up to 2000 A with accessories for monitoring and intelligent power supply.

Installation Units - NH Strips

Standard devices for distribution cabinets with rated currents from 160 A to 630 A, including adapter strips and busbar covers.

House Connection Boxes

• Size 00/100 A cable boxes compliant with DIN 43627 and VDE 0660 part 505.
• Glass fiber reinforced polyester housing with pre-formed cable entries, hinged sealable covers, strain relief for cables up to 42 mm diameter.
• Options for single/double cable entries, multiple outlets, equipotential bonding plugs, and various mounting methods.
• NH fuse subunits molded or replaceable, PEN/N busbars with multiple clamps, seal-capable terminal covers.
• All plastic parts recyclable.

House Connection Columns

• Outdoor fiberglass reinforced polyester columns for camping sites, marinas, pumping stations, broadband communication, and supply transitions.
• Equipped with house connection boxes or busbar systems, cables enter from below with strain relief.
• Features include continuous back panel, two-part foundation plates, plug-in doors with locking mechanisms (single or double lock).
• Available empty or equipped with mounting plates or house connection boxes.

Accessories

Includes SH switches (1- and 3-pole), busbar adapters, IP54 hoods, outgoing terminals for various conductor sizes, retrofit fields, meter plug terminals, sealing caps, busbar connection terminals, retrofit kits, profile half cylinders, key replacements, and lock conversion inserts.

Contact and Sales Information

Jean Müller GmbH provides detailed contact information for headquarters, regional sales offices in Germany, and international subsidiaries in Poland, Austria, Switzerland, Singapore, and China. Product developments and technical changes are subject to change without notice. General sales and delivery conditions apply and are accessible via the company website.

Summary

This document comprehensively details Jean Müller's extensive range of electrical meter and distribution cabinets, accessories, and related products. Emphasis is placed on modularity, safety, environmental protection, and compliance with network operator requirements. The products are designed for various network forms and utility-specific needs, featuring robust construction, advanced protection devices, and flexible configurations for industrial, public, and utility applications.