Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1733480000

1733480000

Weidmuller

CONN TERM BLK FEED THRU 8-22 AWG

0

1763230000

1763230000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

7910240000

7910240000

Weidmuller

CONN TERM BLK DISCONN 10-26AWG

0

0497560000

0497560000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1720820000

1720820000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1754970000

1754970000

Weidmuller

CONN TERM BLK DISCONN 10-26AWG

50

9509620000

9509620000

Weidmuller

CONN TERM BLK DISCONNECT 8-26AWG

0

1783600000

1783600000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

100

0380470000

0380470000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

1887220000

1887220000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

0476560000

0476560000

Weidmuller

SAK 35/32 ALLEN HEAD PA BG

0

1791470000

1791470000

Weidmuller

ZDK 2.5-2 DB+BR

0

1594730000

1594730000

Weidmuller

WDU 1.5/BLZ5.08/32

0

0105660000

0105660000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

0

0380440000

0380440000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

0412240000

0412240000

Weidmuller

SAKR 2STB PA OR

0

0339410000

0339410000

Weidmuller

SK E14 SAKS4

0

911969

911969

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

0539160000

0539160000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

9802730000

9802730000

Weidmuller

CONN TERM BLK DISCONN 12-22AWG

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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