کاتالوگ کلید مینیاتوری های هیمل سری HDBK

کاتالوگ کلید مینیاتوری های هیمل سری HDBK

HDBK Plug-in Miniature Circuit Breaker

جهت دانلود کاتالوگ بر روی لینک زیر کلیک نمایید:

https://cdnfa.com/astshop/4540/uploads/slide/hdbk-catalogue.pdf

HDBK Miniature standard circuit breaker has the following function:
• Short circuit protection
• Overload protection
• Control

Derating Table for Using in High Altitude Area

• IEC60947.2 standard stipulates the relationship between the altitude and the dielectric property.
The altitude below 2,000m does not have significant impact on the properties of the circuit
breaker.
• When the altitude is higher than 2,000m, the air cooling, dielectric property falling and other
conditions must be considered, so the manufacturer shall discuss with the user on the working
conditions or doing special design.
• The following table provides the correct value made for the rated current when the breaking
capacity remains unchanged at the altitude above 2,000m.
Altitude (m) 2000 3000 4000

Dielectric strength 2500 2200 1950

Maximum working voltage (V) 440 440 440

Rated current In 0.96In 0.93In

reference:

https://www.himel.com