Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3022328

3022328

Phoenix Contact

CONN TERM BLK FEED THRU 6-24 AWG

4250

XW5G-S70-1.1-1

XW5G-S70-1.1-1

Omron Automation & Safety Services

GROUNDTB SCREW 70MM 1:1 1TIER

197

1023700000

1023700000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

4221500

2002-1406

2002-1406

WAGO

4-CONDUCTOR THROUGH TERMINAL BLO

168

3046171

3046171

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

1543950

3046223

3046223

Phoenix Contact

CONN TERM BLK GROUND 10-26AWG

1006450

1SNK526020R0000

1SNK526020R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

10

1SNK712065R0000

1SNK712065R0000

TE Connectivity's Sigma Inductors

POW SNK PI-SPRING

30

1766240000

1766240000

Weidmuller

CONN TERM BLK FEED THRU 4-14 AWG

100

331130

331130

American Electrical, Inc.

CONN TERM BLK GROUND 12-26AWG

934

1SNK710063R0000

1SNK710063R0000

TE Connectivity's Sigma Inductors

POW SNK PI-SPRING

12

1771410000

1771410000

Weidmuller

CONN TERM BLK FEED THRU 8-22 AWG

69

3214322

3214322

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

13

3031157

3031157

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

10063650

3205035

3205035

Phoenix Contact

CONN TERM BLK GROUND 16-24AWG

0

1SNK705060R0000

1SNK705060R0000

TE Connectivity's Sigma Inductors

AUT SNK PI-SPRING

101

1608610000

1608610000

Weidmuller

CONN TERM BLK ISOLATED 12-30 AWG

114

2714022

2714022

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

0

0105620000

0105620000

Weidmuller

CONN TERM BLK DISCONNECT 8-26AWG

48750

1SNK526066R0000

1SNK526066R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

10

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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