Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3209604

3209604

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

16450

1186740000

1186740000

Weidmuller

CONN TERM BLK FEED THRU 6-18 AWG

145

7904290000

7904290000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

153

2296854

2296854

Phoenix Contact

CONN TERM BLK FEED THRU 12-24AWG

991

3205022

3205022

Phoenix Contact

CONN TERM BLK FEED THRU 16-24AWG

2

1720920000

1720920000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

3153800

1896250000

1896250000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

191

1SNK512010R0000

1SNK512010R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

2681

3004032

3004032

Phoenix Contact

CONN TERM BLK DISCONN 12-22AWG

6019820

3210315

3210315

Phoenix Contact

CONN TERM BLK DISCONN 16-26AWG

0

1SNK506265R0000

1SNK506265R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

58

3036327

3036327

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

0

3213124

3213124

Phoenix Contact

CONN TERM BLK FEED THRU 16-28AWG

113250

3211778

3211778

Phoenix Contact

CONN TERM BLK FEED THRU 10-24AWG

1311400

8670850000

8670850000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

100

3035247

3035247

Phoenix Contact

CONN TERM BLK 10-28 AWG GRAY

0

1905060000

1905060000

Weidmuller

CONN TERM BLK FEED THRU 10-30AWG

13618550

2718196

2718196

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

71300

CHV4U

CHV4U

Altech Corporation

HIGH VOLTAGE TERM BLOCK 35A 1000

3131100

1521980000

1521980000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

600

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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