Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1933730000

1933730000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

0268880000

0268880000

Weidmuller

CONN TERM BLK FEED THRU 12-28AWG

0

204968

204968

Weidmuller

DK 4/32;3 CLAMP SPLIT SOLD

0

911973

911973

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

1338060000

1338060000

Weidmuller

CONN TERM BLK FEED THROUGH BEIGE

0

8146450000

8146450000

Weidmuller

CONN TERM BLK DISCONNECT BEIGE

0

0412180000

0412180000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

0

1415540000

1415540000

Weidmuller

WDK 10 SET BCD

0

C904915600

C904915600

Weidmuller

CONN TERM BLK FEED THROUGH

0

C037118

C037118

Weidmuller

CONN TERM BLK DUAL DISCONNECT

0

0163460000

0163460000

Weidmuller

DK4 D/35;2-1N4007

0

9537460000

9537460000

Weidmuller

CONN TERM BLK FEED THRU 8-20 AWG

0

0608360000

0608360000

Weidmuller

CONN TERM BLK FEED THRU 2-12 AWG

0

911972

911972

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

9509640000

9509640000

Weidmuller

CONN TERM BLK DISCONN 12-22AWG

250

1030800000

1030800000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

3835020000

3835020000

Weidmuller

CONN TERM BLK DISCONNECT BLACK

0

0502120000

0502120000

Weidmuller

CONN TERM BLK DISCONNECT 6-14AWG

0

1044440000

1044440000

Weidmuller

CONN TERM BLK DISCONNECT

0

1763260000

1763260000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

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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