The busbar system with pin-type connections can be used for all 5SL6 and 5SJ6 miniature circuit breakers KS and 5SY miniature circuit breakers with or without mounted auxiliary switch (AS) or fault signal contact (FC). Busbars in 10 and 16 sq-mm versions are available. With bars that can be cut to length, the 5ST37 busbar system can be tailored to any requirements. The extremely flexible 5ST36 busbar system with fixed lengths also enables installation in any length as the busbars can be overlapped. Siemens Sentron™ Pin Busbar, Standard, Series: 5ST, For Use With: 2-Phase 2-Pole Miniature Circuit Breaker with AS or FC, 5SY4 and 5SY5 Supplementary Protectors, 400 VAC Voltage Rating, 80 A Amperage Rating, Copper, 214 mm L x 18 mm W