Output Circuits; 1: Notification Appliance Circuits - Honeywell Notifier SFP-2402 Instruction Manual

Output Circuits

2.4 Output Circuits
2.4.1 Notification Appliance Circuits
The SFP-2402 provides one Style Y (Class B) NAC (Notification Appliance Circuit) while the
SFP-2404 provides two Style Y (Class B) NACs. Each circuit is capable of providing a maximum
of 2.5 amps of current. Total current drawn from these as well as other DC power outputs cannot
exceed 3.0 amps for the SFP-2402 or 6.0 amps for the SFP-2404 with the optional second
transformer installed (refer to battery calculations section). Each circuit is supervised and power-
limited. Refer to the Notifier Device Compatibility Document for a listing of compatible
notification appliances.
The SFP-2404 NACs can be converted to Style Z (Class A) by installing the optional Class A
Converter module. Refer to "CAC-4 Class A Converter Module (SFP-2404 only)" on page 24.
Notification Appliance Circuit
polarity shown in alarm condition
SFP-2402 & SFP-2404 Series Manual — P/N 51898:F3 8/6/2014
Class B Notification Appliance Circuits (supervised and power-limited)
4.7 K:, ½ watt resistor P/N:71252
Polarized Bell
Polarized Strobe
Polarized Horn
B+ B-
NAC 1
Figure 2.6 NAC Connections
Polarized Bell
Polarized Horn-Strobe
Polarized Horn
Dummy load any unused
circuits (P/N: 71245)
B+ B-
NAC 2
Installation
21