Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
2002-1301

2002-1301

WAGO

3-CONDUCTOR THROUGH TERMINAL BLO

212

17119.1

17119.1

Conta-Clip

FEED-THROUGH TERMINAL

160

1689990000

1689990000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

310500

3212316

3212316

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

46

8731640000

8731640000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

901100

1SNK706062R0000

1SNK706062R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

100

1086465

1086465

Phoenix Contact

TERM BLOCK HIGH-CURRENT

29

1SNK506411R0000

1SNK506411R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

30

3037177

3037177

Phoenix Contact

CONN TERM BLK FEED THRU 10-28AWG

82850

1521780000

1521780000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

4800

3210211

3210211

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

1150

1798460000

1798460000

Weidmuller

CONN TERM BLK GROUND 18-26AWG

115200

3031513

3031513

Phoenix Contact

CONN TERM BLK GROUND 14-26AWG

1395

3211029

3211029

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

48

2775265

2775265

Phoenix Contact

CONN TERM BLK DISCONN 10-30AWG

0

3070338

3070338

Phoenix Contact

CONN TERM BLK FEED THRU 10-24AWG

25

3037012

3037012

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

10

1753280000

1753280000

Weidmuller

CONN TERM BLK FEED THRU 14-26AWG

220

1210.8

1210.8

Conta-Clip

CONN TERM BLK FEED THRU 10-22AWG

100

7914370000

7914370000

Weidmuller

CONN TERM BLK DISCONN 10-26AWG

39175

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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