Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
ER10BEIGE

ER10BEIGE

Quatech / B+B SmartWorx

TB DIN 50A 600V 6AWG 100PC

0

ERF4LD24DC

ERF4LD24DC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 1/4" 8AWG 20PC

0

SC10

SC10

Quatech / B+B SmartWorx

TB DIN 50A 600V 6AWG 100PC

0

SC4GREY

SC4GREY

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG GRAY 100PC

0

ER4BLUE

ER4BLUE

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG BLUE 100PC

0

ERPE2.5/4

ERPE2.5/4

Quatech / B+B SmartWorx

TB DIN GROUND 12AWG 50PC

0

ER4YELLOW

ER4YELLOW

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG YLW 100PC

0

ER4WHITE

ER4WHITE

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG WHT 100PC

0

ER16BEIGE

ER16BEIGE

Quatech / B+B SmartWorx

TB DIN 65A 600V 4AWG 50PC

0

ER4RED

ER4RED

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG RED 100PC

0

ERF2BEIGE

ERF2BEIGE

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 5X20 8AWG 50PC

0

ERF3LD110AC

ERF3LD110AC

Quatech / B+B SmartWorx

TB DIN PUSHFUSE 5X20 10AWG 20PC

0

ER4BLACK

ER4BLACK

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG BK 100PC

0

ER2.5GREY

ER2.5GREY

Quatech / B+B SmartWorx

CONN TERM BLK FEED THRU 100PC

0

ER4GREY

ER4GREY

Quatech / B+B SmartWorx

CONN TERM BLK FEED THRU 100PC

0

SC4RED

SC4RED

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG RED 100PC

0

ERF4LD24AC

ERF4LD24AC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 1/4" 8AWG 20PC

0

ERF3MLD24DC

ERF3MLD24DC

Quatech / B+B SmartWorx

TB DIN PUSHFUSE 5X20 6.3AWG 20PC

0

ERF2LD24AC

ERF2LD24AC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 5X20 8AWG 25PC

0

ER2.5BEIGE

ER2.5BEIGE

Quatech / B+B SmartWorx

TB DIN 20A 600V 12AWG BG 100PC

0

Terminal Blocks - Din Rail, Channel

1. Overview

DIN Rail and Channel Terminal Blocks are modular electrical connectors used to secure and transmit electrical signals or power between wires and devices. Designed to mount on standardized DIN rails (EN 50022) or channel rails, these components enable efficient wiring organization in industrial and commercial systems. Their importance lies in simplifying complex electrical installations, enhancing maintainability, and ensuring reliable connectivity in critical infrastructure.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Screw-Type DIN Rail Terminal BlocksUses screw clamping for secure wire connections; supports high current ratingsIndustrial control panels, HVAC systems
Spring-Clamp Terminal BlocksTool-free push-in wiring for fast installation; vibration-resistantAutomation systems, railway signaling
PCB Mount Terminal BlocksDirect printed circuit board integration; compact designTelecom equipment, medical devices
Channel Rail Terminal BlocksDesigned for C-shaped channel rails; modular expandabilityPower distribution cabinets, renewable energy systems

3. Structure and Components

Typical construction includes:

  • Conductive Elements: Copper alloy or brass contacts with tin/silver plating for corrosion resistance
  • Insulation Housing: Flame-retardant thermoplastic (UL 94 V-0 rated)
  • Mounting Mechanism: Snap-in clips for DIN rail (35mm standard) or channel rail compatibility
  • Wire Connection System: Screw terminals (M3-M4), spring clamps, or cage clamps

4. Key Technical Parameters

ParameterTypical RangeImportance
Rated Current10A - 100ADetermines power transmission capacity
Rated Voltage250V - 1000VDefines electrical insulation requirements
Wire Size Compatibility0.14mm - 300mm Matches with conductor dimensions
Insulation Resistance>1000M Ensures safety and signal integrity
Operating Temperature-20 C to +70 CMaterial performance under thermal stress

5. Application Fields

  • Industrial Automation: PLC control cabinets, motor drives
  • Energy Systems: Solar inverters, wind turbine junction boxes
  • Building Infrastructure: Smart lighting control systems
  • Rail Transport: Train power distribution panels

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Phoenix ContactPT 10-1.5/HC SeriesModular design with cross-connection capability
Weidm llerOMNIMATE PCB Terminal BlocksHigh-density PCB connectivity
Schneider ElectricEasy Connect DIN Rail BlocksIP20 protection rating, color-coded wiring
TE ConnectivityDIN-A-MITE SeriesCompact size with 6kV impulse withstand

7. Selection Guidelines

Key considerations:

  • Match current/voltage ratings with system requirements
  • Choose connection type based on maintenance needs (screw for high reliability, spring for quick changes)
  • Verify wire gauge compatibility
  • Consider environmental factors (temperature, vibration, humidity)
  • Check certifications (UL, CSA, IEC 60947)

Case Study: A smart building project selected spring-clamp terminal blocks with 600V rating and IP55 housing to enable rapid maintenance while ensuring safety in electrical rooms.

8. Industry Trends

  • Miniaturization: 30% reduction in standard DIN rail block width (e.g., 6.2mm vs. 8.4mm)
  • Smart Integration: Built-in current sensors and IoT connectivity
  • Material Innovation: Halogen-free flame retardant materials
  • Standardization: Global adoption of IEC 61535 for safe low-voltage connections
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