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DC Power Distribution Terminal Blocks with Per-Channel Independent Switches

Modular DC distribution up to 72 V / 20 A per channel, available in screw or spring types.
Per-channel independent switches let you isolate circuits safely without shutting down the system.

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DC Power Distribution Terminal Blocks with Switches
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Product Overview

The AOSI DC power distribution terminal block series provides reliable low-voltage wiring solutions for control panels and power systems. Each module integrates one DC input and multiple output channels, supporting up to 72V 20A per circuit.
Users can select standard models or independent switch DC modules, which allow each channel to be turned on or off individually for safer maintenance.

FM06 Series – Screw Type DC Distribution Modules with Independent Switches

Available in 2 to 16 channels, the FM06 Series delivers stable, high-current distribution up to 72 V / 20 A per channel. These DC power distribution terminal blocks feature durable screw connections that ensure secure wiring even in vibration-prone environments.
Caraterísticas principais:

2–16 channel options with modular housing

Screw connection for strong and stable contact

Rated for 72 V DC / 20 A per channel

Compatible with 35 mm DIN rail installation

Saber mais
Screw Type DC Distribution Modules with Independent Switches

HM06 Series – Spring Type DC Distribution Modules with Independent Switches

The HM06 Series is designed for flexibility and easy maintenance, offering per-channel independent switches that allow each circuit to be isolated individually.
Caraterísticas principais:

Independent ON/OFF switch for each output channel

Quick, tool-free spring clamp connection

Rated for 72 V DC / 20 A per channel

Compact, space-saving DIN-rail design

Saber mais
Spring Type DC Distribution Modules with Independent Switches

Key Functions of Independent Switch Design

The AOSI independent switch terminal block enables true per-channel control—you can isolate, test, or service a single branch without powering down the entire system. This design effectively acts as a compact dc circuit isolation module, improving safety, shortening maintenance time, and keeping adjacent loads running.

independent switch terminal block per-channel control dc circuit isolation

Quick Benefits at a Glance

✅ 1Individual ON/OFF per branch for safer live maintenance
✅ RFaster troubleshooting; isolate only the faulted load
✅ ENo system-wide downtime; adjacent channels stay powered
✅ SClear visual state (switch position and optional LED)

Comparison – With vs. Without Independent Switch

Feature / Outcome With Independent Switch Without Independent Switch
Per-channel isolation Yes (instant) No (requires upstream disconnect)
Live maintenance safety Elevado Médio
Troubleshooting speed Fast (single branch) Slower (affects more loads)
System uptime during service Maintained Often interrupted
Best for Test/repair-intensive panels, PV strings, battery branches Simple, rarely serviced circuits

Typical Use Cases

  • PLC I/O branches that need frequent debugging
  • Solar PV strings requiring selective isolation
  • Battery cabinet outputs needing safe per-branch service
  • Vehicle/marine DC circuits with on-board maintenance

Product Selection Guide – Screw and Spring Type Options

AOSI offers two connection styles for its DC power distribution terminal blocks, giving engineers the flexibility to match installation preferences and cabinet requirements.
Both types support up to 72V / 20A per channel and are available from 2 to 16 channels.
Choose between the FM06 screw terminal DC blocks for high vibration environments or the HM06 spring clamp DC distribution modules for fast, tool-free wiring.

Modelo Tipo Canais Dimensions (L×W×H mm) Housing Color
FM06-02D Terminal de parafuso 2 90×59×42 Preto
FM06-03D Terminal de parafuso 3 105×59×42 Preto
FM06-04D Terminal de parafuso 4 121×59×42 Preto
FM06-06D Terminal de parafuso 6 153×59×42 Preto
FM06-08D Terminal de parafuso 8 188×59×42 Preto
FM06-12D Terminal de parafuso 12 259×59×42 Preto
FM06-16D Terminal de parafuso 16 295×59×42 Preto
HM06-02D Spring clamp 2 90×59×42 Black / Orange
HM06-03D Spring clamp 3 105×59×42 Black / Orange
HM06-04D Spring clamp 4 121×59×42 Black / Orange
HM06-06D Spring clamp 6 153×59×42 Black / Orange
HM06-08D Spring clamp 8 188×59×42 Black / Orange
HM06-12D Spring clamp 12 259×59×42 Black / Orange
HM06-16D Spring clamp 16 295×59×42 Black / Orange

All models share the same electrical rating (72V / 20A) and support wide wire range (0.5–6 mm² / 22–12 AWG). Differences mainly lie in channel count, dimensions, and connection type (screw or spring).

Get Reliable DC Switch Modules Directly from the Manufacturer

With over 15 years of experience in modular terminal manufacturing, we provide a full range of DC switch distribution modules — from compact 2-channel units to high-density 16-channel blocks, available in both screw and spring connection types.
Each model is designed for independent channel switching, allowing users to control or isolate each output without interrupting the main power supply.

  • Independent Switch Control – Each channel features an individual ON/OFF switch for safer live maintenance
  • High-Performance Design – Rated 72 V DC / 20 A per channel, stable under continuous load
  • Two Connection Options – Screw terminals for solid, vibration-proof wiring; spring clamps for tool-free installation
  • DIN-Rail Mount, Modular Design – Compact housing that fits seamlessly into control panels or DC cabinets
  • Industrial Durability – Made of flame-retardant PA66 material, resistant to heat and impact
Get Terminal Module Catalogue
DC Switch Distribution Modules Catalogue

Technical Data Overview

The following dc distribution block specifications outline the key technical parameters that ensure safety and performance in demanding industrial environments.
All models are built for long-term reliability, featuring flame-retardant PA66 housings and standard DIN-rail mounted terminal designs for easy installation and maintenance.

Power switch distribution module structure diagram

Each unit supports up to 72V 20A current rating per channel, suitable for DC control, energy storage, and solar distribution systems.

Parâmetro Especificação
Tensão nominal 72 V DC
Corrente nominal 20 A per channel
Tipo de ligação Screw or spring clamp
Gama de fios 0.5–6 mm² (22–12 AWG)
Material da caixa PA66, UL 94 V-0 flame-retardant
Tipo de montagem 35 mm DIN-rail mounted
Switch Type Individual mechanical ON/OFF per channel
Indicator Optional LED for active or fault status
Temperatura de funcionamento −40 °C ~ +85 °C
Resistência de isolamento ≥100 MΩ at 500 V DC
Dielectric Strength 2000 V AC, 1 minute
Manutenção Supports Lockout/Tagout safety procedures

💡 All AOSI terminals are manufactured and tested under strict quality control standards to ensure consistent contact stability and long service life.

Typical Applications in DC Power Systems

The AOSI DC switch distribution modules are widely used in industrial and energy systems that require safe, flexible, and organized power routing.
Each unit serves as a reliable dc terminal for control panels and other DC equipment, ensuring stable operation under continuous load.
With compact size and independent channel switches, these modules help engineers manage multiple circuits efficiently in limited space.

Painéis de controlo industrial

Painéis de controlo industrial

Power distribution and branch isolation for PLCs, sensors, and controllers

Solar DC Distribution

Solar DC Distribution

Manage PV string outputs with individual circuit control and protection

Battery Cabinet Power Terminal

Battery Cabinet Power Terminal

Safely control and service each battery branch independently

Automation Equipment

Automation Equipment

Compact DC modules for panel-mounted multi-load systems

💡 Ideal for environments requiring frequent maintenance, per-channel isolation, or compact DC power management.

Wiring Principle and Circuit Diagram

To better understand the internal structure of the DC switch distribution modules, the following dc switch wiring diagram illustrates how each channel operates independently while sharing a common power input.

dc switch wiring diagram per-channel isolation circuit dc power distribution schematic

Each branch is protected and switched individually, ensuring per-channel isolation circuit control without affecting adjacent loads.This modular design enhances flexibility, simplifies maintenance, and prevents system-wide downtime during troubleshooting or service.

💡 The diagram clearly shows the main DC input, internal switching contacts, and multiple output lines — representing the flow of power within a complete dc power distribution schematic.

How to Choose the Best Manufacturer

Selecting a reliable DC switch distribution module manufacturer is essential for ensuring product stability, long-term supply, and safe circuit performance.
When choosing a supplier, focus on production capability, quality control standards, and technical support.
At AOSI, every stage — from raw material selection to final testing — is managed in-house to guarantee consistency and reliability.

Porquê escolher a AOSI Electronics como seu parceiro?

Certificado por UL CE RoHS
Certificado por UL/CE/RoHS

Na AOSI Electronics, todos os nossos blocos de terminais e conectores são rigorosamente testados e totalmente certificados:

✅ UL, CE, RoHSe REACH em conformidade

✅ Inspeção de qualidade 100% antes do envio

Cumprimento rigoroso de ISO 9001:2015 normas de gestão da qualidade

Projectos à prova de fogo, resistentes a altas temperaturas e testados quanto a vibrações para ambientes industriais

🔒 Uma ligação fiável começa com componentes certificados. Não fazemos concessões quando se trata de segurança e conformidade.

Forte capacidade de fabrico(1)
Capacidade de fabrico

Como fábrica direta com mais de 15 anos de experiência na produção de blocos de terminais, a AOSI fornece:

🔧 Sobre 30 máquinas de moldagem por injeção

🧰 Internamente conceção de ferramentas e moldes capacidades

👷 Mais de 50 trabalhadores qualificados e 8 linhas de produção

🚚 Produção mensal durante 5 milhões de peças

Desde a criação de protótipos até à entrega a granel, oferecemos prazos de entrega estáveis, MOQ flexívele qualidade consistente do produto.

Capacidade OEM e alcance global
Capacidade OEM/ODM

Quer seja um distribuidor, integrador de sistemas ou OEM, a AOSI está pronta para apoiar o seu crescimento:

🌐 Exportar para Mais de 40 países na Europa, na Ásia e nas Américas

Opções personalizáveis: número de pinos, logótipo, cor, material da caixa, embalagem

Suporte de engenharia para passo especial, design de bloco modular e aplicações de alta corrente

Falamos a sua língua: comunicação rápida, desenhos, amostras e apoio logístico global.

Contactar a nossa equipa de vendas

Get Reliable DC Switch Distribution Modules for Your Next Project

Looking for high-quality and CE-compliant DC switch distribution modules for your industrial, automation, or solar applications? AOSI Electronics offers 2 to 16 channel switch distribution blocks with fast delivery, dependable performance, and flexible OEM customization options.

Contact our engineering team today to get free samples or a personalized quotation for your next DC power project.

Get a Inquiry Now

FAQs – DC Switch Power Distribution Modules

A DC switch distribution module distributes one DC input into multiple outputs. Each channel includes an independent ON/OFF switch, allowing branch control and safe isolation in industrial or solar systems.

Each output has a mechanical switch that allows per-channel isolation without affecting other circuits, improving safety and reducing maintenance downtime.

Yes, AOSI offers OEM customization, including logo printing, color options, labeling, and private packaging for distributors and equipment manufacturers.

All models are rated up to 72V DC / 20A per channel, suitable for low-voltage DC systems such as control panels, battery cabinets, and PV arrays.

All products use PA66 flame-retardant housings, ensuring excellent insulation, heat resistance, and durability for industrial environments.

Mount the unit on a 35 mm DIN-rail, connect input/output wires according to polarity, and use switches for safe branch isolation during maintenance.

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Por favor, deixe uma mensagem à nossa equipa de vendas e entraremos em contacto consigo o mais rapidamente possível.