Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1SNK506012R0000

1SNK506012R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

95

3049110

3049110

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

14

1SNK706152R0000

1SNK706152R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

14

0441041

0441041

Phoenix Contact

CONN TERM BLK GROUND 4/0-2AWG

2123

1767700000

1767700000

Weidmuller

CONN TERM BLK FEED THRU 6-16 AWG

381000

CX2.5/3

CX2.5/3

Altech Corporation

CONN TERM BLK FEED THRU 12-24AWG

3611600

1608570000

1608570000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

5631

3210251

3210251

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

0

2051310000

2051310000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

0

1608550000

1608550000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

CYDLF4LRL110-240V

CYDLF4LRL110-240V

Altech Corporation

DIN TERM BLK SCREW FUSE LED

10050

3000540

3000540

Phoenix Contact

CONN TERM BLK DISCONN 12-24AWG

178150

1598080000

1598080000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

12

1119800000

1119800000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

23125

1210.1

1210.1

Conta-Clip

CONN TERM BLK FEED THRU 10-22AWG

100

3214424

3214424

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

3116750

1924490000

1924490000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

50

8025610000

8025610000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

25225

1782300000

1782300000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

2715966

2715966

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

49

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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