Terminal Blocks - Din Rail, Channel

Image Part Number Description / PDF Quantity Rfq
3050413

3050413

Phoenix Contact

CONN TERM BLK DISCONN 16-24AWG

27

3031212

3031212

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

2147483647

3031089

3031089

Phoenix Contact

CONN TERM BLK FEED THRU 14-26AWG

94

0340720000

0340720000

Weidmuller

CONN TERM BLK DISCONN 10-22AWG

0

2715571

2715571

Phoenix Contact

CONN TERM BLK FEED THRU 14-30AWG

0

1SNK522150R0000

1SNK522150R0000

TE Connectivity's Sigma Inductors

POW SNK SCREW

10

3211861

3211861

Phoenix Contact

CONN TERM BLK DISCONN 10-24AWG

6575800

3005015

3005015

Phoenix Contact

CONN TERM BLK FEED THRU 8-26 AWG

7862100

XW5T-S6.0-1.1-1BL

XW5T-S6.0-1.1-1BL

Omron Automation & Safety Services

TB SCREW 6MM 1:1 1TIER BLUE

50

2051500000

2051500000

Weidmuller

FEED-THROUGH TERMINAL, PUSH IN,

0

3213739

3213739

Phoenix Contact

CONN TERM BLK GROUND 14-26AWG

71

3074444

3074444

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

0

1039600000

1039600000

Weidmuller

CONN TERM BLK FEED THRU 8-26 AWG

1132500

1770390000

1770390000

Weidmuller

CONN TERM BLK GROUND 10-26AWG

462000

8670520000

8670520000

Weidmuller

CONN TERM BLK FEED THRU 10-26AWG

50100

1413036

1413036

Phoenix Contact

CONN TERM BLK FEED THRU 12-28AWG

3424450

3000564

3000564

Phoenix Contact

CONN TERM BLK DISCONN 10-24AWG

52

AS2.5/G

AS2.5/G

Altech Corporation

ANGULAR SPRING CLAMP 25A600V22-1

99

1415115

1415115

Phoenix Contact

CONN TERM BLK FEED THRU 10-26AWG

0

2714271

2714271

Phoenix Contact

CONN TERM BLK FEED THRU 8-26 AWG

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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