Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3046141

3046141

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

14191300

3034248

3034248

Phoenix Contact

CONN TERM BLK DISCONNECT 8-20AWG

25

1SNK505210R0000

1SNK505210R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

146

3046427

3046427

Phoenix Contact

CONN TERM BLK DISCONNECT 8-24AWG

22714

0376860000

0376860000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

130

3025150

3025150

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

130

17100.9

17100.9

Conta-Clip

FEED-THROUGH TERMINAL

300

2010-1201

2010-1201

WAGO

2-CONDUCTOR THROUGH TERMINAL BLO

188

3036055

3036055

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

117300

0711616

0711616

Phoenix Contact

CONN TERM BLK DISCONN 12-24AWG

0

0441083

0441083

Phoenix Contact

CONN TERM BLK GROUND 12-28AWG

101300

1683390000

1683390000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

269100

41211.2

41211.2

On-Shore Technology, Inc.

CONN TERM BLK FEED THRU 12-22AWG

0

1770860000

1770860000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

171

0661260000

0661260000

Weidmuller

CONN TERM BLK GROUND 8-20 AWG

70

0501620000

0501620000

Weidmuller

CONN TERM BLK DISCONN 10-26AWG

0

3035108

3035108

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

50

3073186

3073186

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

0

0701082

0701082

Phoenix Contact

CONN TERM BLK FEED THRU 6-24 AWG

50

3044513

3044513

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

226612750

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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