Motors with Inherent Overheating Protection
This Standard applies to ac and dc motors with inherent overheating protection
designed to be used in accordance with the Rules of the Canadian Electrical
Code, Part I, as follows:
(a) motors with a voltage rating not exceeding 600 V and with a protective
device connected in the motor circuits;
(b) impedance protected motors with a voltage rating not exceeding 600 V; and
(c) motors with a voltage rating not exceeding 5000 V and having a protective
device connected in an external control circuit with a voltage rating not
exceeding 600 V.
This Standard applies to motors with protective devices that are responsive to
(a) motor temperature alone; or
(b) motor temperature and motor current passing through the device.
These requirements supplement those in CSA Standard C22.2 No.100.
This Standard does not apply to motors with protective devices that are
responsive to current alone.
This Standard does not apply to sealed (hermetic) type motor compressors with
inherent overheating protection.