Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
CY2.5

CY2.5

Altech Corporation

DIN TERM BLK SCREW FEED-THRU

500600

CTS4U-N

CTS4U-N

Altech Corporation

CONN TERM BLK FEED THRU 10-22AWG

2147483647

XW5T-S10-1.1-1BL

XW5T-S10-1.1-1BL

Omron Automation & Safety Services

TB SCREW 10MM 1:1 1TIER BLUE

85

3000542

3000542

Phoenix Contact

CONN TERM BLK DISCONN 12-24AWG

321000

3045211

3045211

Phoenix Contact

CONN TERM BLK FEED THRU 8-24 AWG

39

1991790000

1991790000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

0

ATL2.5

ATL2.5

Altech Corporation

CONN TERM BLK FEED THRU 12-22AWG

401600

1010100000

1010100000

Weidmuller

CONN TERM BLK GROUND 10-22AWG

185849900

1768310000

1768310000

Weidmuller

CONN TERM BLK GROUND 4-14 AWG

10

1010010000

1010010000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

6685

3038464

3038464

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

6113400

3210230

3210230

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

24

3035328

3035328

Phoenix Contact

CONN TERM BLK FEED THRU 4-16 AWG

11032525

3035234

3035234

Phoenix Contact

CONN TERM BLK 10-28 AWG GRAY

0

3210925

3210925

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

0

3211252

3211252

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

1033600

3072801

3072801

Phoenix Contact

CONN TERM BLK FEED THRU 8-26 AWG

0

3209580

3209580

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

25515150

3210357

3210357

Phoenix Contact

CONN TERM BLK FEED THRU 16-26AWG

11

3260056

3260056

Phoenix Contact

CONN TERM BLK FEED THRU 1/0-8AWG

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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