Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3037038

3037038

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

0

3037070

3037070

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

492100

C904908600

C904908600

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

1615270000

1615270000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

3046090

3046090

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

21819000

3210612

3210612

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

75

3031225

3031225

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

7200

1683440000

1683440000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

45100

1041100000

1041100000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

105

3046150

3046150

Phoenix Contact

CONN TERM BLK DISCONN 10-26AWG

0

1826050000

1826050000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

10

1616470000

1616470000

Weidmuller

CONN TERM BLK DISCONN 12-26AWG

13

1855620000

1855620000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

1213

CMC1-2

CMC1-2

Altech Corporation

CONN TERM BLK FEED THRU 10-22AWG

3514600

3211498

3211498

Phoenix Contact

CONN TERM BLK GROUND 8-20 AWG

2735600

3004171

3004171

Phoenix Contact

CONN TERM BLK DISCONNECT 8-26AWG

3665150

2809597

2809597

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

0

1770370000

1770370000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

150

2717139

2717139

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

50800

41064.2

41064.2

On-Shore Technology, Inc.

CONN TERM BLK GROUND 10-22AWG

0

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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