Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1163070000

1163070000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1020600000

1020600000

Weidmuller

CONN TERM BLK FEED THRU 1-12 AWG

225

1415480000

1415480000

Weidmuller

WDK 10 DU-PE

50

1272420000

1272420000

Weidmuller

CONN TERM BLK DISCONN 12-22AWG

0

1024680000

1024680000

Weidmuller

CONN TERM BLK FEED THRU 2/0-6AWG

0

911978

911978

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1886560000

1886560000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

300

1163050000

1163050000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

1000

1030200000

1030200000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

0479220000

0479220000

Weidmuller

CONN TERM BLK FEED THRU 12-24AWG

0

1867500000

1867500000

Weidmuller

ZSI 6-2 2X2.5/G20/LD1

0

0269120000

0269120000

Weidmuller

CONN TERM BLK DISCONNECT 8-26AWG

0

1020360000

1020360000

Weidmuller

CONN TERM BLK FEED THRU 6-18 AWG

0

1739540000

1739540000

Weidmuller

CONN TERM BLK FEED THRU 6-16 AWG

0

0395960000

0395960000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1699631111

1699631111

Weidmuller

ZVR1/ZDKB 2.5

0

1028980000

1028980000

Weidmuller

CONN TERM BLK FEED THRU 4-18 AWG

0

1041500000

1041500000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

800

1027700000

1027700000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1933720000

1933720000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

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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