4
CURRENT TECHNOLOGY
®
CURRENTGUARD
TM
COMPACT INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Confirm that the voltage(s) and service configuration shown on the
CurrentGuard product label are consistent with the voltage and service
configuration of the facility . The model number can be found on the left side
of the CurrentGuard unit . Each model number corresponds to the configurations
printed in Table 1:
Model Number Scheme:
Pre-Installation Checklist
✓
Table 1: Configuration Table
MODEL
NOMINAL
L-N
L-L
CONFIGURATION
VOLTAGE VOLTAGE VOLTAGE
RANGE RANGE
CGC050-120/240-2G
120/240
108-132
216-264
Split-Phase, 3-Wire + Ground
CGC050-120/208-3GY
120/208
108-132
187-229
3-Phase Wye, 4-Wire + Ground
CGC050-277/480-3GY
277/480
249-305
432-528
3-Phase Wye, 4-Wire + Ground
CGC050-240-3DG
240
N/A
216-264
3-Phase Delta, 3-Wire + Ground
Confirm that the environmental conditions are consistent with the following
ranges:
• Ambient Temperatures: Between -40° and +158°F .
• Relative Humidity: Between 5% and 95% non-condensing .
• Altitude: Less than 13,000 feet .
W A R N I N G ! It is recommended that the cover of the
CurrentGuard unit along with its associated cabling be installed prior
to applying power. The monitoring harness, which exits the epoxy
and connects to J2 on the monitor board, contains line voltage when
power is applied to the unit.
Apply power to CurrentGuard by closing the over-current protection device or
switch feeding the suppressor .
Options Suffixes
M
Advanced Monitoring (LEDs, Form “C” Contacts, Audible Alarm)
tnbpowersolutions.com/current_technology
C G C 0 5 0 — 1 2 0 / 2 0 8 — 3 G Y — M
Model
kA Rating
Voltage
Configuration
Monitoring
OPtion
E .g .: CGC050-120/208-3GY-M
