Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
ER2.5WHITE

ER2.5WHITE

Quatech / B+B SmartWorx

TB DIN 20A 600V 12AWG WHITE 100P

0

ERT3S

ERT3S

Quatech / B+B SmartWorx

TB DIN SENS 24A 300V 12AWG 20PC

0

SC4

SC4

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG BG 100PC

0

ERTD6BEIGE

ERTD6BEIGE

Quatech / B+B SmartWorx

TB DIN LEVER 1/4IN BAR 8AWG 20PC

0

ER35PBEIGE

ER35PBEIGE

Quatech / B+B SmartWorx

TB DIN 115A 600V 1AWG CONN 40PC

0

SC2.5GREY

SC2.5GREY

Quatech / B+B SmartWorx

TB DIN 20A 600V 12AWG GRAY 100PC

0

ERT3BEIGE

ERT3BEIGE

Quatech / B+B SmartWorx

TB DIN 3DECK 24A 300V 12AWG 20PC

0

ER2.5GREEN

ER2.5GREEN

Quatech / B+B SmartWorx

TB DIN 20A 600V 12AWG GREEN 100P

0

SCF3BEIGE

SCF3BEIGE

Quatech / B+B SmartWorx

TB DIN PUSHFUSE 5X20MM 8AWG 20PC

0

SC6

SC6

Quatech / B+B SmartWorx

TB DIN 35A 600V 8AWG 100PC

0

SCF4LDBEIGE110AC

SCF4LDBEIGE110AC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 1/4 8AWG 20PC

0

ERF2LD24DC

ERF2LD24DC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 5X20 8AWG 25PC

0

SCD4LDBEIGE24AC

SCD4LDBEIGE24AC

Quatech / B+B SmartWorx

TB DIN 2DECK 32A 300V 10AWG 20PC

0

SCF3LDBEIGE110AC

SCF3LDBEIGE110AC

Quatech / B+B SmartWorx

TB DIN PUSHFUSE 5X20 10AWG 20PC

0

ER6BEIGE

ER6BEIGE

Quatech / B+B SmartWorx

TB DIN 35A 600V 8AWG 100PC

0

ERPE6/10

ERPE6/10

Quatech / B+B SmartWorx

TB DIN GROUND 8AWG 25PC

0

ERF2LD110AC

ERF2LD110AC

Quatech / B+B SmartWorx

TB DIN LEVERFUSE 5X20 8AWG 25PC

0

ER4BEIGE

ER4BEIGE

Quatech / B+B SmartWorx

TB DIN 20A 600V 10AWG BEIGE 100P

0

SCD4LDBEIGE24DC

SCD4LDBEIGE24DC

Quatech / B+B SmartWorx

TB DIN 2DECK 32A 300V 10AWG 20PC

0

SC2.5BLUE

SC2.5BLUE

Quatech / B+B SmartWorx

TB DIN 20A 600V 12AWG BLUE 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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