Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1298080000

1298080000

Weidmuller

WDU 35 RT (RED)

5720

0582460000

0582460000

Weidmuller

CONN TERM BLK FEED THRU 2-12 AWG

0

1115760000

1115760000

Weidmuller

CONN TERM BLK DISCONN 17-22AWG

0

1017900000

1017900000

Weidmuller

CONN TERM BLK DISCONNECT 8-20AWG

100

1933700000

1933700000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

1802780000

1802780000

Weidmuller

CONN TERM BLK FEED THRU 500 MCM

98

911997

911997

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

1720880000

1720880000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

200

0185420000

0185420000

Weidmuller

SAK FEED THROUGH TERMINAL

0

1712760000

1712760000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

1733290000

1733290000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

1867490000

1867490000

Weidmuller

ZSI 6-2 2X2.5/G20/LD2

0

0217160000

0217160000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1779110000

1779110000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

20

0550520000

0550520000

Weidmuller

CONN TERM BLK FEED THRU 3/0-6AWG

0

1036180000

1036180000

Weidmuller

CONN TERM BLK FEED THRU 6-14 AWG

0

9908660001

9908660001

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

753

1119870000

1119870000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

50

0279680000

0279680000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

0380580000

0380580000

Weidmuller

CONN TERM BLK FEED THRU 8-22 AWG

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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