SMT-S2140A

UL Standard Test Probe Illustrated Impeller of UL 507 Figure 9.2

Stationary fans and permanently connected fans In accordance with 9.1.1, the design and intended use of a stationary fan or of a fan intended to be permanently connected electrically is to be considered when evaluating an enclosure or guard. The impeller of a stationary or permanently connected fan shall be constructed so that it cannot be contacted by the probe illustrated in Figure 9.2. Exceptio...