Circuit Breakers & Switching Equipment – Complete Protection for Electrical Installations

RCD protection – essential for every installation

Residual current devices protect against electric shock by detecting the smallest current leakage to earth. Standard values like 30mA provide personal protection, while 0.5A is intended for equipment and property safety. Products such as the FID SKLOPKA 63/0.5A ETI combine code-compliant protection with long-term reliability – brands like ETI and FID are synonymous with quality in this category.

Understanding current characteristics

The amperage rating on a breaker (e.g. 40A, 63A) indicates the maximum current the device can safely interrupt. For residential installations, values of 25-40A are typically sufficient, while commercial buildings require 63A and above. Never select a breaker with a lower current rating than needed – this can cause overheating and fire.

Installation type determines protection type

Type AC breakers are most affordable but respond only to alternating leakage currents. Type A recognizes DC components as well, essential for modern homes with LED lighting and electronics. For industrial spaces with motor drives, considering MOTORNA switching equipment with additional resistance to pulsed currents is mandatory.

Enclosed or modular construction

Modular breakers mount on DIN rail inside a distribution panel and occupy a standardized number of modules (typically 2-4). KUTIJA complete solutions include pre-assembled distribution boxes with built-in breakers, ideal for renovation projects. When building a new installation, modular equipment allows simple upgrades without complete replacement.

Regular testing and maintenance

Test RCD protection monthly by pressing the TEST button – if the breaker doesn't trip, it must be replaced immediately. Monitoring enclosure temperature under load reveals excessive contact resistance before failure occurs. Professional insulation resistance measurements every three years extend the lifespan of the entire installation.

Selection and Pricing

We offer 22 products from 3 brands across 1 sellers. Prices range from 650 to 7,500 RSD.