Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3213949

3213949

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

232

1402940

1402940

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

28832950

3209594

3209594

Phoenix Contact

CONN TERM BLK GROUND 12-26AWG

3497050

3031746

3031746

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

80

1SNK522060R0000

1SNK522060R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

20

2002-1811/1000-541

2002-1811/1000-541

WAGO

4-CONDUCTOR FUSE TERMINAL BLOCK;

41

3044241

3044241

Phoenix Contact

CONN TERM BLK GROUND 2-14 AWG

100

1020340000

1020340000

Weidmuller

CONN TERM BLK FEED THRU 6-18AWG

50300

3205103

3205103

Phoenix Contact

CONN TERM BLK DISCONN 16-24AWG

2511550

BNH15MW

BNH15MW

IDEC

BN SERIES TERMINAL BLOCK

0

1683430000

1683430000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

161100

1119840000

1119840000

Weidmuller

CONN TERM BLK DISCONNECT 8-22AWG

2800

3210194

3210194

Phoenix Contact

CONN TERM BLK DISCONN 12-26AWG

221

1247420000

1247420000

Weidmuller

CONN TERM BLK DISCONN 12-30AWG

0

1086480

1086480

Phoenix Contact

TERM BLOCK HIGH-CURRENT

10

3209620

3209620

Phoenix Contact

CONN TERM BLK GROUND 12-26AWG

36

1078999

1078999

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

118

3046692

3046692

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

14

2791032

2791032

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

51

CYDLF4LRL6-60V

CYDLF4LRL6-60V

Altech Corporation

DIN TERM BLK SCREW FUSE LED

100

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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