The brochure covers the most common types of electrical protection for induction motors up to 500 V using fuses, electromagnetic and thermal relays, and circuit breakers. The simplest schemes for switching on protection devices are given. Rules for selection of fuse links and calculation of settings of protection devices are given, illustrated by numerical examples. Describes how to configure security sets. The brochure is intended for a wide range of electricians engaged in the installation and operation of electric drives with asynchronous motors.