3VA9573-0JB23 - 2-barrel, 3P Lug Kit - 3VA55/65/66

3VA9573-0JB23 -  2-barrel, 3P Lug Kit - 3VA55/65/66

When you’re dealing with high-amperage electrical systems, reliability comes down to one thing: the quality of your connections. The Siemens 3VA9573-0JB23 wire connector kit is designed to eliminate uncertainty at that critical point. Built specifically for SENTRON 3VA5 circuit breakers (3VA55 and 3VA65), this 3-piece connector set helps you create solid, dependable terminations you can trust under load. These TA3.1 circular conductor terminals are engineered for serious performance, supporting both copper and aluminum conductors from 4/0 AWG up to 600 kcmil. That wide range gives you the flexibility to handle demanding installations without compromising safety or efficiency. The dual-cable design also makes it easier to manage complex wiring configurations, especially in tight panel environments where space and precision matter. Whether you’re installing new equipment or upgrading an existing system, this Siemens connector kit delivers the kind of consistency and durability professionals rely on. It’s a small component—but one that plays a big role in keeping your electrical system running smoothly.

Key Features and Benefits

• Purpose-Built for Siemens 3VA5 Breakers
  Designed for seamless compatibility with 3VA55 and 3VA65 models—no guesswork required.
• Supports High-Capacity Conductors
  Accommodates copper and aluminum wires from 4/0 AWG to 600 kcmil, ideal for heavy-duty applications.
• Dual-Cable Connection Design
  Connect two conductors per terminal, giving you flexibility in more complex installations.
• Secure and Consistent Terminations
  Engineered for proper torque application, helping reduce the risk of loose connections and overheating.
• Convenient 3-Piece Kit
  Includes three connectors, making it easy to complete multi-phase or replacement projects efficiently.
• Backed by Siemens Quality
  Part of the trusted SENTRON line, known for dependable electrical performance.

Technical Specifications

• Catalog Number: 3VA9573-0JB23
  
• Product Type: Wire Connector / Circular Conductor Terminal
  
• Terminal Type: TA3.1
  
• Quantity: 3 connectors per kit
  
• Compatible Breakers: Siemens 3VA55, 3VA65
  
• Connection Type: Internal, dual-cable
  
• Conductor Compatibility: Copper and Aluminum
  
• Wire Range:4/0 AWG to 600 kcmil (UL)
  120 mm² to 300 mm² (IEC)
  
• Strip Length: 26 mm (1.02 in)
  
• Tightening Torque: Up to 375 lb-in
  
• Net Weight: 1.174 kg
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• RoHS Compliant – Meets current hazardous substance restrictions
• REACH Compliant – Aligns with EU chemical safety standards
• WEEE Compliant – Supports responsible electronic waste handling
• UL & IEC Standards – Designed to meet recognized international requirements
• Export Classification: EAR99

Where It Works Best

• Industrial power distribution systems with high current demands
• Commercial electrical panels and large-scale building infrastructure
• Switchgear assemblies requiring secure, high-capacity connections
• Motor control centers (MCCs) handling heavy electrical loads
• Facility upgrades where dependable terminations are essential
• Installations using Siemens 3VA55 and 3VA65 circuit breakers
• Applications requiring dual-conductor configurations for added flexibility