Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3035288

3035288

Phoenix Contact

CONN TERM BLK FEED THRU 6-16 AWG

24

3036466

3036466

Phoenix Contact

CONN TERM BLK FEED THRU 8-24 AWG

14304050

BN1U-20W

BN1U-20W

IDEC

SPRING-UP TERMINAL BLOCK

60

1SNK506210R0000

1SNK506210R0000

TE Connectivity's Sigma Inductors

AUT SNK SCREW

184

1078991

1078991

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

46

41078.2

41078.2

On-Shore Technology, Inc.

CONN TERM BLK DISCONN 12-22AWG

0

1674300000

1674300000

Weidmuller

CONN TERM BLK FEED THRU 12-30AWG

121313000

1030700000

1030700000

Weidmuller

CONN TERM BLK FEED THRU 12-26AWG

50250

3047413

3047413

Phoenix Contact

CONN TERM BLK FEED THRU 8-24 AWG

20250

1SNK508011R0000

1SNK508011R0000

TE Connectivity's Sigma Inductors

TEST AND MEASUREMENT TB

50

1414019

1414019

Phoenix Contact

CONN TERM BLK FEED THRU 12-30AWG

65

ODL4U

ODL4U

Altech Corporation

CONN TERM BLK FEED THRU 10-22AWG

178850

3044078

3044078

Phoenix Contact

CONN TERM BLK FEED THRU 12-26AWG

792

3211776

3211776

Phoenix Contact

CONN TERM BLK FEED THRU 10-24AWG

1220

1020400000

1020400000

Weidmuller

CONN TERM BLK FEED THRU 6-14 AWG

5152250

3213742

3213742

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

478

3205116

3205116

Phoenix Contact

CONN TERM BLK FEED THRU 16-24AWG

293716150

BN15MW

BN15MW

IDEC

BN SERIES TERMINAL BLOCK

27

DP4-TR

DP4-TR

DINKLE Corporation USA

PUSH IN TERM BLK FEED THROUGH 24

4890

3037164

3037164

Phoenix Contact

CONN TERM BLK FEED THRU 10-28AWG

52

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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