Mircom OpenBAS-HV-NX10 Series Installation Manual page 35

Table 8 Surge Protection on Relay Outputs (Continued)
Type of field Notes
device
High impedance lamps such
as LED lamps require a 15 kΩ
120 VAC LED lamp 1W 5% resistor in parallel to
the lamp to prevent current
leakage.
Install a 120 V MOV surge
protector in parallel with
120 VAC coil
solenoid coil to suppress
noise.
Install a 1N4007 reverse
polarizing diode in parallel
24 VDC coil
with DC solenoid coil to
suppress flyback voltage.
24 VDC lamp N/A
Wiring diagram
120 VAC LED
120 VAC
Neutral
120 VAC coil
120 VAC
Neutral
24 VDC coil
24 VDC
0 V
NC
C
24 VDC lamp
NO
24 VDC
0 V
Field Wiring
NC
C
Controller
NO
NC
C
Controller
NO
NC
C
Controller
NO
Controller
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