System 5ST3 7 Busbar System

With pin connections

Customizable cutting bar

For single-phase or three-phase line protection switches of the series 5SJ6 and 5SY

No additional connection terminal required for multi-wire connection up to 35 mm²

Excellent accessibility for feeder cable

Load

• 50→90 A on the input side/central input for 10 mm²;
• 65→120 A for 16 mm²

Connection type

Pin connection

Material

Cu (10 mm²); 16 mm² fully insulated

Tab separation

18 mm

Standards

DIN 57606, DIN 57659

Siemens Distribution Boards and Accessories

The type B offers an instantaneous short-circuit response level of 3 - 5 x rated current, making it suitable for circuits with moderate input currents, such as incandescent lamps, heating loads, and small/domestic building protection applications. The type C offers a short-circuit response level of 5 - 10 x rated current, making them suitable for circuits with high input currents, such as motor control and fluorescent lighting installations in industrial buildings, where noise could cause an incorrect disconnection if a faster type were used.