Don't trust what you see on data sheets when choosing power supplies for hot or cold environments.

Electronic connectors are typically the points in a circuit most vulnerable to the effects of corrosion. Those effects can range from reduced current capacity to intermittent or permanent failure of the circuit.

Good stuff here - electric motors reference material for designing and using AC, DC motors. includes reference information about the various types of electric motors and the selection criteria and requirements used for typical mechanical engineering applications