E.g.
Commutator motor featuring a compact construction, optimal cooling system, low noise level, extended service life. Extremely light-weight and easy to handel, allowing a most universal use.
Commutator motor 240, 230 or 110 Volt.
Double insulated according to protection class II, with integral thermal cut-out switch. Splash proof according to IP 44 (type F 417) or IP24 (type F 457).

And lots of other references at www.google.com

колекторен двигател = коллекторный двигатель = commutator motor
(Lingvo 6.0)


DC commutator motor
http://www.cedrat-grenoble.fr/software/speed/speed.htm

AC commutator motor (universal AC/DC motor)
http://www.ed.co.kr/pro_en/eeducation/ed-5300.htm

Hope it can help you.
Best Regards,
Serge

Above explanations are correct but source is available in Bulgarian, so no need to Russian-English translation.

See: Concise Bulgarian - English Polytechnical Dictionary. Publishing House "Technika", Sofia, 1990