Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
1783590000

1783590000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

0

1934790000

1934790000

Weidmuller

WTQ 6/1 EN

100

1730900000

1730900000

Weidmuller

ZSI 2.5/5X25

0

0380570000

0380570000

Weidmuller

CONN TERM BLK FEED THRU 8-22 AWG

0

9528160000

9528160000

Weidmuller

CONN TERM BLK DISCONN ISOLATED

600

C035548

C035548

Weidmuller

CONN TERM BLK FEED THRU 10-22AWG

0

1938820000

1938820000

Weidmuller

WTL 6/1/STB/TNSC/EN

0

9537510000

9537510000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

0

1772950000

1772950000

Weidmuller

CONN TERM BLK ISOLATED 4-14 AWG

0

1768800000

1768800000

Weidmuller

CONN TERM BLK FEED THRU 14-26AWG

50

1021560000

1021560000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

0

1791130000

1791130000

Weidmuller

CONN TERM BLK FEED THRU 16-28AWG

0

0555720000

0555720000

Weidmuller

CONN TERM BLK FEED THRU 2-12 AWG

0

6720000045

6720000045

Weidmuller

ETA 8340 T120 K1K2 AEHO 1A

0

911975

911975

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

3897820000

3897820000

Weidmuller

CONN TERM BLK DISCONNECT

0

0396360000

0396360000

Weidmuller

CONN TERM BLK FEED THRU 12-22AWG

0

0630400000

0630400000

Weidmuller

CONN TERM BLK SLOTTED V-0

200

8010040000

8010040000

Weidmuller

CONN TERM BLK FEED THROUGH BEIGE

0

0059160000

0059160000

Weidmuller

DK 4 RD/35 VARISTOR

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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