FIELD: electrical equipment.
SUBSTANCE: invention relates to the electrical equipment. Circulation pump of the heating system has pump casing (1) with a pump impeller located in it, which is driven by an electric motor, the stator of which is located in motor casing (8) connected to pump casing (1). Electrical line is connected by positioning on wall (36) of the circulation pump of socket (34) and corresponding to socket (34) of plug (35). Plug (35) is essentially parallel to wall (36) and is inserted into socket (34) and has screw clamp (72) that extends when plug (35) is inserted essentially perpendicular to wall (36) and can only be screwed on without plug (35) inserted from front side (54) of plug (35).
EFFECT: technical result is improved reliability.
16 cl, 4 dwg
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