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The Notification Appliance Circuits on the SPS or RPS are rated for Special Application and for
regulated 24Vdc operation per UL864, 9th Edition.
When used with the Notification Appliances listed in Table 7 or Table 8, each NAC is rated for 3A,
and total SPS capacity is rated at 9A. This rating is the UL864 Special Application rating.
Appliances listed in Table 7 and in Table 8 are synchronized per UL864, between all NACs on the
SPS, and any NACs on an SPS, RPS or XPS within the same 4100U/4100ES system. This does not
apply if appliances are mixed from both tables. Appliances from Table 7 will be 1/2 second out of
audible sync with appliances from table 8 in the same system. All appliances any given SPS, RPS or
XPS must be from either Table 7 or Table 8, mixing of appliances from both tables is not possible
within a power supply.
For use with Notification Appliances not listed in Table 7 or Table 8, each circuit is rated for 2A
maximum, with a total Notification Appliance load of 4A per SPS. This rating is the UL 864
Regulated 24Vdc rating. Synchronization of strobes and other appliances requires use of the
associated, Listed, compatible Synchronization Module. Consult supplier of Notification
Appliances for synchronization limits and details.
Non-pulsing, linear-type Notification Appliances, such as horns or bells may be used up to the
full rating (3A for each NAC, 9A total for the SPS).
NAC Field Wiring,
Continued
Guidelines
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