EATON 3-Phase Busbar Adapter B3.1/2-PKZ0 for PKZ0 Motor Protective Circuit Breakers, 63 A, 690 V AC, 3-Pole, IP20 (044945)

This 3-phase busbar adapter from Eaton's PKZ0 accessory line provides a direct, tool-free connection between three PKZ0 motor protective circuit breakers and a standard 12 mm busbar system. It consolidates power distribution in motor control centers and industrial control panels, eliminating complex wiring and reducing installation time. Rated for up to 63 A and 690 V AC, it ensures reliable performance in demanding three-phase applications.

Advantages

The B3.1/2-PKZ0 simplifies assembly with its integrated plug-in connection to the breaker and clamp connection to the busbar. Its compact design saves space, while the high-grade insulating plastic and copper construction guarantee durability and electrical safety. The adapter supports three devices simultaneously, enabling efficient group mounting and a neat, organized panel layout.

Suitable for

• Three-phase motor protection circuits using Eaton PKZ0 breakers
• Industrial control panels and motor control centers
• Applications requiring a 12 mm busbar system with up to 63 A and 690 V AC
• Installations where fast, maintenance-friendly connections are essential

Key specifications

• Product type: Busbar adapter
• Compatible with Eaton PKZ0 motor protective circuit breakers
• Number of devices supported: 3
• Phase configuration: 3-phase
• Busbar system compatibility: 12 mm busbar
• Rated operational voltage (Ue): max. 690 V AC
• Rated operational current (Ie): max. 63 A
• Mounting type: Direct busbar mounting
• Degree of protection: IP20
• Standards: IEC/EN 60947
• Material: High-grade insulating plastic, copper
• Number of poles: 3-pole
• Connection to breaker: Integrated plug-in connection
• Connection to busbar: Clamp connection
• Operating temperature: -25°C to +55°C

Recommendations

For optimal performance and safety, pair this adapter with Eaton PKZ0 motor protective circuit breakers and a compatible 12 mm busbar system. Ensure the panel provides adequate ventilation and that the ambient temperature remains within the specified range. Always follow local electrical codes and standards during installation.