Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
0374660000

0374660000

Weidmuller

CONN TERM BLK GROUND 6-12 AWG

0

9537470000

9537470000

Weidmuller

CONN TERM BLK FEED THRU 8-20 AWG

0

1161690000

1161690000

Weidmuller

CONN TERM BLK DISCONNECT BEIGE

100

0190160000

0190160000

Weidmuller

CONN TERM BLK GROUND 6-12 AWG

0

1032300000

1032300000

Weidmuller

CONN TERM BLK FEED THRU 2/0-6AWG

0

1950680000

1950680000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

0

1020700000

1020700000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

1791120000

1791120000

Weidmuller

ZDK 1.5DU-PE

0

1021600000

1021600000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

1272520000

1272520000

Weidmuller

CONN TERM BLK DISCONN 12-22AWG

0

1023760000

1023760000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

7920950000

7920950000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

100

8012260000

8012260000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

0555760000

0555760000

Weidmuller

CONN TERM BLK FEED THRU 2-12 AWG

0

1908440000

1908440000

Weidmuller

INSTA-SET D+ VDE ZANGEN

0

0279670000

0279670000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

1692600000

1692600000

Weidmuller

CONN TERM BLK FEED THROUGH BEIGE

0

0412160000

0412160000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

0162220000

0162220000

Weidmuller

CONN TERM BLK DISCONNECT 8-20AWG

0

0321320000

0321320000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

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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