Power-Limited Wiring Requirements Installation
HPFF12 NAC Expander — P/N 53576:B3 10/1/2018 27
2.5.2 Power-Limited Wiring, FACP Cabinet
HPFF12CM(E) Power-Limited Wiring, EQBB-D4 Backbox
Knockout for
Power-limited wiring
Output circuits and
Auxiliary Output:
Power-limited
Battery connections:
Non-power-limited
Relay Contacts:
Non-power-limited
Knockout for
Non-power-limited
wiring
Knockout for
Power-limited wiring
AC Power:
Non-power-limited
(See Figure 2.19 for
wiring detail.)
Maintain 0.25" in. vertical
separation where
power-limited and
non-power-limited circuits
appear to “cross”
Figure 2.18 Power-Limited Wiring Example: EQBB-D4 with HPFF12CM(E)
Input Circuits:
Power-limited
Output circuits and
Auxiliary Output:
Power-limited
Knockout for
Non-power-limited
wiring