INSTALLATION, OPERATION AND MAINTENANCE MANUAL 7
FSPD, TPS4 03, TPS4 09, TPS4 11
Operation
LED Operation
Each SPD contains 1 green LED per phase shown in the appropriate voltage configuration. When the LEDs
are green complete protection is present. Upon MOV stack failure the LED corresponding to the failed mode
will extinguish.
Audible Alarm
Similar to the LEDs the Audible Alarm will sound upon suppression element failure. The Audible Alarm may
be silenced by removing power (where applicable) to the SPD.
Dry Contact
Three 21" 18 AWG wires are included through the nipple as the Dry Contacts. Dry Contacts change state
during inoperative conditions, including loss of power. Any status change can be monitored elsewhere via
Dry Contacts.
• Please note: Dry Contacts are designed for low voltage or control signals only
• Maximum switching current is 2A
• Maximum switching voltage is 240Vac
• Higher energy applications require additional relay implementation outside the SPD
• Yellow or White is Common, Black is Normally Open and Brown is Normally Closed. If the Dry Contacts are
not utilized, insulate lead ends, coil and secure.
Maintenance
SPDs require minimal maintenance. We recommend periodic inspection of diagnostic indicators to ensure
proper operation. We also recommend keeping the SPD clean as appropriate.
Troubleshooting and Service
Please contact Technical Support for any service related issues.
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