Terminal Blocks - Accessories

Image Part Number Description / PDF Quantity Rfq
1676640000

1676640000

Weidmuller

CONN TERM BLK SHIELD TERM BEIGE

0

0318580000

0318580000

Weidmuller

CONN TERM BLK PARTITION RAIL BLU

0

1482460000

1482460000

Weidmuller

CONN TERM BLK LGT PIPE CLR 1POS

0

0571300000

0571300000

Weidmuller

CONN TERM BLK BUSBAR

0

9512280000

9512280000

Weidmuller

CONN TERM BLK EXTENSION TERM

0

1705250000

1705250000

Weidmuller

CONN TERM BLK COVER BLACK 8POS

0

996546

996546

Weidmuller

RDIN C96M RS70

0

1633320000

1633320000

Weidmuller

CONN TERM BLK END PLATE RAIL

0

1327660000

1327660000

Weidmuller

CONN TERM BLK COVER ORANGE 13POS

0

1537800000

1537800000

Weidmuller

CONN TERM BLK TEST PLUG ADAPT

0

0205300000

0205300000

Weidmuller

CONN TERM BLK END PLATE RAIL BRN

0

0130000000

0130000000

Weidmuller

CONN TERM BLK TEST SOCKET

0

1742610000

1742610000

Weidmuller

CONN TERM BLK MT BASE RAIL BG 1P

0

1792520000

1792520000

Weidmuller

CONN TERM BLK END PLATE RAIL BG

0

1792530000

1792530000

Weidmuller

CONN TERM BLK END PLATE RAIL BLU

0

0286500000

0286500000

Weidmuller

STB 18 FOR RSF 1

0

1649610000

1649610000

Weidmuller

CONN TERM BLK TEST ADAPTER

0

1705290000

1705290000

Weidmuller

CONN TERM BLK COVER BLACK 11POS

0

0241760000

0241760000

Weidmuller

CONN TERM BLK TAG BLOCK BG 12P

0

1760070000

1760070000

Weidmuller

CONN TERM BLK MNT BASE RAIL ORAN

0

Terminal Blocks - Accessories

1. Overview

Terminal Blocks Accessories are modular devices used to secure and manage electrical connections in various systems. They include components like terminal covers, marking strips, bridging pieces, and grounding terminals. These accessories enhance safety, improve connectivity reliability, and facilitate maintenance in electrical installations. With the rise of smart infrastructure and Industry 4.0, terminal blocks accessories have become critical in ensuring efficient power distribution and signal transmission across industries.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Terminal CoversProtect against dust, moisture, and accidental contactIndustrial control panels
Marking StripsEnable circuit identification via labelingElectrical cabinets in HVAC systems
Bridging PiecesAllow parallel connections between adjacent terminalsPower distribution blocks
Grounding TerminalsProvide safe earthing paths for equipmentMachinery grounding systems
Fuse HoldersIntegrate circuit protection with terminal blocksControl circuits in renewable energy systems

3. Structure and Components

Typical terminal blocks accessories consist of: - Insulation Housing: Made from flame-retardant thermoplastics (e.g., PA66) - Conductive Elements: Brass or phosphor bronze contacts with tin/silver plating - Clamping Mechanism: Screw-type, spring-cage, or push-in connectors - Identification Features: Laser-markable surfaces or insertable labels - Mounting Base: DIN rail compatible or panel-mount designs

4. Key Technical Specifications

ParameterTypical RangeImportance
Rated Current1-300ADetermines power handling capacity
Rated Voltage50-1000VEnsures insulation safety
Contact Resistance<10m Affects connection efficiency
Insulation Resistance>100M Prevents leakage current
Operating Temperature-40 C to +120 CEnsures reliability in harsh environments
Short-Circuit Withstand10-100kACritical for industrial safety

5. Application Fields

Major industries include:

  • Industrial Automation: PLC control cabinets, motor drives
  • Energy Systems: Solar inverters, wind turbine controllers
  • Transportation: Rail vehicle electrical systems, EV charging stations
  • Telecom Infrastructure: Base station power distribution
  • Building Automation: HVAC control systems, smart lighting

Example: In smart grid substations, grounding terminals protect SCADA systems from surges.

6. Leading Manufacturers and Products

ManufacturerKey ProductsSpecial Features
Phoenix ContactPTFIX seriesModular plug-in system
Weidm llerSAM seriesTool-free connection technology
TE ConnectivityMini Universal seriesCompact 5.0mm pitch
Wago285 seriesCAGE CLAMP spring connection
OMRONV-terminal seriesVibration-resistant screw terminals

7. Selection Guide

Key considerations:

  1. Electrical Requirements: Match current/voltage ratings with system needs
  2. Environmental Factors: Consider temperature, humidity, and vibration
  3. Installation Type: DIN rail vs. PCB mounting
  4. Certifications: UL, CE, RoHS compliance
  5. Maintenance Needs: Choose between screw-type (high reliability) or push-in (fast installation)

Case Study: For outdoor wind turbine control cabinets, specify IP67-rated terminal covers with UV-resistant materials.

8. Industry Trends

Emerging trends include:

  • Miniaturization: 2.5mm pitch terminals for compact devices
  • Smart Integration: IoT-enabled terminals with condition monitoring
  • Modular Systems: Customizable blocks with tool-less assembly
  • Material Innovation: Halogen-free flame-retardant polymers
  • Global Standardization: Unified dimensions per IEC 60947-7

Market growth driven by EV charging infrastructure and renewable energy projects, projected at 6.2% CAGR through 2030.

RFQ BOM Call Skype Email
Top