Terminal Blocks - Din Rail, Channel

Part Number	Description / PDF	Quantity
9537480000 Weidmuller	CONN TERM BLK FEED THRU 8-16 AWG	4100
1683330000 Weidmuller	CONN TERM BLK FEED THRU 12-30AWG	204700
0474360000 Weidmuller	CONN TERM BLK GROUND 14-22AWG	78100
0210160000 Weidmuller	CONN TERM BLK FEED THRU 12-22AWG	49450
1036760000 Weidmuller	CONN TERM BLK FEED THRU 10-26AWG	109600
1247290000 Weidmuller	CONN TERM BLK DISCONN 12-30AWG	50
1521700000 Weidmuller	FEED-THROUGH TERMINAL, PUSH IN,	100
1683400000 Weidmuller	CONN TERM BLK FEED THRU 12-30AWG	296100
9908510001 Weidmuller	CONN TERM BLK DISCONN 12-26AWG	64925
1880420000 Weidmuller	CONN TERM BLK DISCONN 10-30AWG	321325
1833380000 Weidmuller	WDU 10 WS (WHITE)	45
7914390000 Weidmuller	CONN TERM BLK DISCONN 10-26AWG	34
1016400000 Weidmuller	CONN TERM BLK GROUND 12-26AWG	13300
1770360000 Weidmuller	CONN TERM BLK FEED THRU 10-26AWG	8846800
0279660000 Weidmuller	CONN TERM BLK FEED THRU 10-26AWG	752400
1024200000 Weidmuller	CONN TERM BLK FEED THRU 12-26AWG	6550
0363660000 Weidmuller	CONN TERM BLK FEED THRU 12-26AWG	1000
1806980000 Weidmuller	CONN TERM BLK FEED THRU 10-26AWG	16711800
1706040000 Weidmuller	CONN TERM BLK FEED THRU 12-26AWG	0
0294320000 Weidmuller	CONN TERM BLK FEED THRU 12-24AWG	167300

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

Type	Functional Features	Application Examples
Screw-Type DIN Rail Terminal Blocks	Uses screw clamping for secure wire connections; supports high current ratings	Industrial control panels, HVAC systems
Spring-Clamp Terminal Blocks	Tool-free push-in wiring for fast installation; vibration-resistant	Automation systems, railway signaling
PCB Mount Terminal Blocks	Direct printed circuit board integration; compact design	Telecom equipment, medical devices
Channel Rail Terminal Blocks	Designed for C-shaped channel rails; modular expandability	Power 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

Parameter	Typical Range	Importance
Rated Current	10A - 100A	Determines power transmission capacity
Rated Voltage	250V - 1000V	Defines electrical insulation requirements
Wire Size Compatibility	0.14mm - 300mm	Matches with conductor dimensions
Insulation Resistance	>1000M	Ensures safety and signal integrity
Operating Temperature	-20 C to +70 C	Material 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

Manufacturer	Representative Product	Key Features
Phoenix Contact	PT 10-1.5/HC Series	Modular design with cross-connection capability
Weidm ller	OMNIMATE PCB Terminal Blocks	High-density PCB connectivity
Schneider Electric	Easy Connect DIN Rail Blocks	IP20 protection rating, color-coded wiring
TE Connectivity	DIN-A-MITE Series	Compact 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