Sieyuan DC Molded Case Circuit Breaker product photo.
Sieyuan DC Molded Case Circuit Breaker product photo.

GB

IEC

DC Molded Case Circuit Breaker

SYM6Z series DC molded case circuit breakers are suitable for DC systems with rated working voltage DC 1500 V and below and rated working current 500 A and below, with the functions of main circuit overload/short-circuit protection, making, breaking, and isolation. Typical application scenarios include energy storage, photovoltaics, data centers and DC distribution.

  • Reduced Installation Footprint

  • Low Power Consumption

  • High Breaking Capacity

Product Highlights

Reduced Installation Footprint

Reduced Installation Footprint

Dedicated two-pole DC product, 50% smaller in size, enabling cabinet miniaturization.

Low Power Consumption

Low Power Consumption

Overall power consumption reduced by 60% compared with conventional counterparts, boosting power supply efficiency.

High Breaking Capacity

High Breaking Capacity

Reliable breaking at 50kA (DC 1000V) to prevent fault escalation.

Technical Specification

Rated Operating Voltage Ue

DC1500V

Rated Operating Current Ie

250A, 320A, 400A, 500A

Rated Impulse Withstand Voltage Uimp

12kV

Rated Ultimate Short-Circuit Breaking Capacity Icu

30kA(DC1500V, τ=2ms)/50kA(DC1000V)

Rated Service Short-Circuit Breaking Capacity Ics

25kA(DC1500V, τ=2ms)/50kA(DC1000V)

Mechanical Endurance

10000

Electrical Durability

1000