Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
CYDLF4L110-240V

CYDLF4L110-240V

Altech Corporation

DIN TERM BLK SCREW FUSE LED

100150

1SNK506266R0000

1SNK506266R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

52

1730940000

1730940000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

1501100

3005099

3005099

Phoenix Contact

CONN TERM BLK FEED THRU 6-24 AWG

0

304255

304255

American Electrical, Inc.

AVK 35 TERMINAL BLOCK BLACK 600V

100

1SNK712150R0000

1SNK712150R0000

TE Connectivity's Sigma Inductors

POW SNK PI-SPRING

13

3004142

3004142

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

264950

0380420000

0380420000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

72

1086499

1086499

Phoenix Contact

TERM BLOCK HIGH-CURRENT

10

43527.2

43527.2

On-Shore Technology, Inc.

CONN TERM BLK GROUND 10-20AWG

0

1771380000

1771380000

Weidmuller

CONN TERM BLK FEED THRU 8-22 AWG

2050

1023400000

1023400000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

33175

3031607

3031607

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

73

CYG2.5

CYG2.5

Altech Corporation

DIN TERM BLK SCREW GRND

105100

3211766

3211766

Phoenix Contact

CONN TERM BLK GROUND 10-24AWG

519

3007330

3007330

Phoenix Contact

CONN TERM BLK FEED THRU 10-30AWG

1

3050303

3050303

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

1411100

3000610

3000610

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

2486

1SNK516150R0000

1SNK516150R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

138

1616400000

1616400000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

31

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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