Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
2800017

2800017

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

10

BNH15LW

BNH15LW

IDEC

BN SERIES TERMINAL BLOCK

130

3036521

3036521

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

50

1SNK505062R0000

1SNK505062R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

47

2051290000

2051290000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

0

3046744

3046744

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

127

3208197

3208197

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

7892

1886590000

1886590000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

421450

3064140

3064140

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

13

1923157

1923157

Phoenix Contact

CONN TERM BLK FEED THRU 10-30AWG

48

3210172

3210172

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

7

304203

304203

American Electrical, Inc.

AVK 2.5 RD TERMINAL BLOCK YELLOW

0

2552090000

2552090000

Weidmuller

TERM BLOCK, PUSH IN, 35 MM2, 100

4630

3210258

3210258

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

50

CYF4L6-60V

CYF4L6-60V

Altech Corporation

DIN TERM BLK SCREW FUSE LED

110300

3210609

3210609

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

13593950

3037096

3037096

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

11150

1783820000

1783820000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

78

1037300000

1037300000

Weidmuller

CONN TERM BLK GROUND 2/0-6AWG

620

1SNK705310R0000

1SNK705310R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

29

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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