Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
2800567

2800567

Phoenix Contact

CONN TERM BLK FEED THRU 12-24AWG

24

DK2.5N

DK2.5N

DINKLE Corporation USA

SCREW TERM BLK FEED THROUGH 22~1

95620

1772060000

1772060000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

203

XW5T-S2.5-1.1-1

XW5T-S2.5-1.1-1

Omron Automation & Safety Services

TERMBLK SCREW 2.5MM 1:1 1TIER

0

3046149

3046149

Phoenix Contact

CONN TERM BLK DISCONNECT 8-24AWG

0

3260065

3260065

Phoenix Contact

CONN TERM BLK FEED THRU 1/0-8AWG

0

7940029426

7940029426

Weidmuller

CONN TERM BLK DISCONNECT 4-18AWG

7

1036700000

1036700000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

1101200

2718015

2718015

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

1150

DP2.5-TR

DP2.5-TR

DINKLE Corporation USA

PUSH IN TERM BLK FEED THROUGH 26

37730

1SNK508415R0000

1SNK508415R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

50

3031636

3031636

Phoenix Contact

CONN TERM BLK ISOLATED 12-28 AWG

0

ODLG2.5A

ODLG2.5A

Altech Corporation

DIN TERM BLK SCREW DBL LEVEL

91150

3031445

3031445

Phoenix Contact

CONN TERM BLK FEED THRU 10-28AWG

195

3050407

3050407

Phoenix Contact

CONN TERM BLK DISCONN 16-24AWG

0

3037313

3037313

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

121

3046184

3046184

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

258619600

1SNK510030R0000

1SNK510030R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

94

3212950

3212950

Phoenix Contact

CONN TERM BLK GROUND 8-20 AWG

1831600

8731700000

8731700000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

34

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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