Non-Incendive Inputs ?

[TwoBlocked]

We will be wiring field devices to a Murphy Centurion panel with "Non-incendive Inputs". It is my understanding that open contacts, such as a level switch that would normally require a conduit seal in a hazardous area, does not require one if it is part of a non-incendive circuit. NEC 2020501.15 (A) (1) Exception (4) "The switch, circuit breaker, fuse, relay, or resistor is part of a nonincendive circuit."

Could I get confirmation or clarification on this, please?