Installation Procedure
15
Connect Line and Load Wiring
ERP-FT is shipped standard with either 24 or 48 relays installed. Depending on customer
requirements the relay type and quantities may vary for custom orders. Three relay types are
available for customer convenience, 20A single pole relay (Aromat WR6161-81), a 20A
double pole relay (Aromat WR6166-81) and a 30A 480V double pole relay (WR6172-84).
Step 1:
Connect “Line” from the circuit breaker to the designated relay.
WARNING:
RISK OF DEATH BY ELECTRIC SHOCK! Failure to disconnect all power
to the panel before working inside the panel could result in serious
injury or death.
De-energize main feed to relay panel and follow appropriate Lockout/
Tagout procedures as described in NFPA Standard 70E. It is important
to note that electrical equipment such as relay panels, can present an
arc flash safety hazard if improperly serviced. This is due to available
large short circuit currents on the feeders of the equipment. Any
work on energized equipment must comply with OSHA Electrical Safe
Working Practices.
Loa
d
Lin
e
Wiring Raceway
Line / Load
terminations for
relays 2, 4, 6... 24.
Control
terminations
AC Input
120V or 277V,
50/60Hz
AC Input
120V or
277V 50/
60Hz
Line / Load
terminations for
relays 1, 3, 5...23
Line / Load
terminations for
relays 25, 27,
29...47
Line / Load
terminations for
relays 26, 28,
30...48