Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3031076

3031076

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

1107600

1775620000

1775620000

Weidmuller

CONN TERM BLK GROUND 16-30AWG

100200

CHV10U

CHV10U

Altech Corporation

CONN TERM BLK FEED THRU 6-20AWG

311550

1989800000

1989800000

Weidmuller

TEST-DISCONNECT TERMINAL, PUSH I

200

3044584

3044584

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

18184700

1770380000

1770380000

Weidmuller

CONN TERM BLK GROUND 10-26AWG

80600

3206490

3206490

Phoenix Contact

CONN TERM BLK DISCONN 14-20AWG

19

1402788

1402788

Phoenix Contact

CONN TERM BLK GROUND 12-30AWG

30

1636790000

1636790000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

196

3248031

3248031

Phoenix Contact

CONN TERM BLK FEED THRU 12-24AWG

862

DK6N-TN

DK6N-TN

DINKLE Corporation USA

SCREW TERM BLK FEED THROUGH 20~8

10000

3209109

3209109

Phoenix Contact

CONN TERM BLK ISOLATED 12-28 AWG

1

3211935

3211935

Phoenix Contact

CONN TERM BLK GROUND 12-26AWG

20450

XW5G-P2.5-1.2-1

XW5G-P2.5-1.2-1

Omron Automation & Safety Services

TERM BLK GND PUSH 2.5MM 1:1 2TIE

50

1SNK705212R0000

1SNK705212R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

18

1833640000

1833640000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

50

1547680000

1547680000

Weidmuller

PE TERMINAL, PUSH IN, 2.5 MM, G

500

3210316

3210316

Phoenix Contact

CONN TERM BLK DISCONN 16-26AWG

5050

1SNK536020R0000

1SNK536020R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

5

CY10/BL

CY10/BL

Altech Corporation

DIN TERM BLK SCREW FEED-THRU

420350

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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