Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1616500000

1616500000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

1690

2775090

2775090

Phoenix Contact

CONN TERM BLK FEED THRU 10-30AWG

58

3100063

3100063

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

71

2002-1305

2002-1305

WAGO

3-CONDUCTOR THROUGH TERMINAL BLO

236

3037465

3037465

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

469450

331140

331140

American Electrical, Inc.

CONN TERM BLK GROUND 8-26 AWG

998

2771010

2771010

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

324850

1SNK706060R0000

1SNK706060R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

100

0661160000

0661160000

Weidmuller

CONN TERM BLK GROUND 14-22AWG

176100

3035700

3035700

Phoenix Contact

CONN TERM BLK DISCONNECT 8-24AWG

40

41124.2

41124.2

On-Shore Technology, Inc.

CONN TERM BLK FEED THRU 300 MCM

0

3006056

3006056

Phoenix Contact

CONN TERM BLK FEED THRU 4-22 AWG

18

3211760

3211760

Phoenix Contact

CONN TERM BLK FEED THRU 10-24AWG

419500

0105420000

0105420000

Weidmuller

CONN TERM BLK DISCONNECT 8-26AWG

0

3210268

3210268

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

0

3001682

3001682

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

6051800

1831280000

1831280000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

784700

0139160000

0139160000

Weidmuller

CONN TERM BLK FEED THRU 2/0-4AWG

12

1014300000

1014300000

Weidmuller

CONN TERM BLK DISCONNECT 8-20AWG

14500

1833340000

1833340000

Weidmuller

CONN TERM BLK FEED THRU 6-18 AWG

141200

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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