Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
43515.2

43515.2

On-Shore Technology, Inc.

CONN TERM BLK FEED THRU 10-20AWG

0

2791388

2791388

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

30550

2551520000

2551520000

Weidmuller

TERM BLOCK, PUSH IN, 35 MM2, 100

4160

1784180000

1784180000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

19750

1027550000

1027550000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

46

3260139

3260139

Phoenix Contact

CONN TERM BLK FEED THRU 4/0-4AWG

0

DP6-PE

DP6-PE

DINKLE Corporation USA

PUSH IN TERM BLK FEED THROUGH 20

1995

1805940000

1805940000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

125400

1683260000

1683260000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

614600

3210509

3210509

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

52800

2771094

2771094

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

0

1SNK508430R0000

1SNK508430R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

87

2551530000

2551530000

Weidmuller

TERM BLOCK, PUSH IN, 35 MM2, 100

4640

3037517

3037517

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

0

2004-1204

2004-1204

WAGO

2-CONDUCTOR THROUGH TERMINAL BLO

150

3206539

3206539

Phoenix Contact

CONN TERM BLK FEED THRU 14-20AWG

3350

1743180000

1743180000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

50

3100062

3100062

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

824819

0790488

0790488

Phoenix Contact

CONN TERM BLK FEED THROUGH GRAY

401550

3210372

3210372

Phoenix Contact

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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