Busbar | for connection of automatic circuit breakers | 3P | 10mm² | 63A | Promfactor Baltic WB3-10

Technical Specifications

Standards: IEC/EN 61439-1, IEC/EN 60999-1
Number of poles: 3P (three-phase)
Busbar cross-section: 10 mm²
Rated voltage (Un): 400 V
Insulation voltage (Ui): 500 V
Impulse voltage (Uimp): 4000 V
Rated current (In): 63 A
Frequency: 50/60 Hz
Row spacing: 125 mm
Length: 125 mm
Connection type: Screw (mechanical contact)
Material: High-conductivity copper with PVC insulation
Protection degree: IP20
Operating position: Any
Altitude: ≤2000 m
Operating temperature: -25…+55 °C
Storage temperature: -25…+70 °C
Weight: 75 g
Color: Black

Functions and Purpose

Ensures even phase distribution and contact integrity

Allows quick and convenient connection of multiple switches without separate wires

Reduces thermal load and voltage drop at connections

Applications

For electricians: Ideal for installation in automation cabinets, distribution boxes, and control panels

For engineers: Enables design of reliable three-phase systems with clear current distribution and easy maintenance

For home users: Suitable for use in household electrical distribution boxes for neat and safe switch connections

For industry: Used in production lines, machine control units, and automation systems

Advantages

High-quality copper busbar – excellent conductivity and reduced energy loss

Screw connection – reliable and mechanically durable contact

Wide temperature range – resistant to both cold and heat

Complies with international IEC/EN standards – ensures quality and compatibility

Disadvantages

Not suitable for single-phase connections

Requires precise module width (for 18 mm switches)