Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1137790000

1137790000

Weidmuller

CONN TERM BLK DISCONNECT 4-18AWG

0

912015

912015

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

0501500000

0501500000

Weidmuller

SAKS 1/35/5X25 KRG WM BEIGE

0

8731680000

8731680000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

0

0376960000

0376960000

Weidmuller

CONN TERM BLK DISCONN 12-22AWG

0

1163080000

1163080000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1626960000

1626960000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

1162940000

1162940000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1867420000

1867420000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1683300000

1683300000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

1031200000

1031200000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

1712810000

1712810000

Weidmuller

CONN TERM BLK GROUND 12-26AWG

0

1040880000

1040880000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1084780000

1084780000

Weidmuller

CONN TERM BLK DISCONNECT 8 AWG

0

0168820000

0168820000

Weidmuller

SAK 4/32 KU KRG BN

0

1119830000

1119830000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

50

0354760000

0354760000

Weidmuller

CONN TERM BLK GROUND 2-8AWG

0

1119790000

1119790000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

75

0539060000

0539060000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1026600000

1026600000

Weidmuller

CONN TERM BLK FEED THRU 250 MCM

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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