Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
ATDA4R

ATDA4R

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 10-22AWG

0

ATDB4BK

ATDB4BK

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 10-22AWG

0

ATD1F4R

ATD1F4R

Socapex (Amphenol Pcd)

CONN TERM BLK DISCONN 10-22AWG

0

ATX4G

ATX4G

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 10-22AWG

0

ASMA41BG

ASMA41BG

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 12-22AWG

0

ATB4BG

ATB4BG

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 10-22AWG

0

ATB16

ATB16

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 4-20 AWG

0

ATB25BU

ATB25BU

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 2-14 AWG

0

ATB25BK

ATB25BK

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 2-14 AWG

0

ATD1FL4220BU

ATD1FL4220BU

Socapex (Amphenol Pcd)

CONN TERM BLK DISCONN 10-22AWG

0

ASMA42BR

ASMA42BR

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 12-22AWG

0

ATF4BU

ATF4BU

Socapex (Amphenol Pcd)

CONN TERM BLK DISCONN 10-22AWG

0

ATB95R

ATB95R

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 4/0-2AWG

0

ATTA2BK

ATTA2BK

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 12-24AWG

0

ASBM22

ASBM22

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 14-22AWG

0

ATB10Y

ATB10Y

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 6-20 AWG

0

ASB2R

ASB2R

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 14-22AWG

0

ATB35BG

ATB35BG

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 2-8 AWG

0

ATBB4G

ATBB4G

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 6-22 AWG

0

ATTL2R

ATTL2R

Socapex (Amphenol Pcd)

CONN TERM BLK FEED THRU 12-24AWG

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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