Section 4 - Samlexpower Evolution EVO-1212F Owner's Manual

SECTION 3 |
TABLE 3.2 SIZING OF AC INPUT WIRING AND BREAKERS
Model No.
(Rated Output Power
in Inverter Mode)
(Column 1)
EVO-1212F
(1200VA)
EVO-1212F-HW
(1200VA)
EVO-1224F
(1200VA)
EVO-1224F-HW
(1200VA)
NOTES FOR TABLE 3.2 - SIZING OF GRID AND BREAKERS
1. Column 2 indicates the Maximum AC Input Current which is equal to the maximum in-
ternal current limit of 20A programmable through parameter "GRID CURRENT" (Refer to
Section 4.5.2.2 of Remote Control EVO-RC-PLUS Manual).
2. Column 3 indicates NEC Ampacity based on which the wiring conductor size (Column 4)
is determined. This NEC Ampacity is not less than 125% of the maximum input current
(Column 2) - Refer to NEC-2014 (National Electrical Code) - Section 210.19(A)(1)(a)
regarding minimum Ampacity and size of Branch Circuit Conductors.
3. a. For EVO-1212F-HW and EVO-1224F-HW: Column 4 indicates the wiring conductor
size that has been determined based on NEC-2014 (National Electrical Code) -
Ampacity Table 310.15(B)(16) for Raceway for EVO-1212F and EVO-1224F-HW. This
conductor size is based on (i) NEC Ampacity (Column 3) (ii) conductor temperature of
75°C / 167°F and (iii) ambient temperature of 30°C / 86°F.
b. For EVO-1212F and EVO-1224F: Power may also be supplied through NEMA rated
20A-125V detachable Power Cord (3 conductors, AWG #12) for free air - Ampacity
Table 310.15(B)(17)
4. Column 5 indicates the Amp rating of AC input breaker. EVO-1212F/EVO-1224F have
built-in 20A breaker (15, Fig 2.1). External 20A AC input breaker is required to be
installed for EVO-1212F-HW/1224F-HW. The Amp rating of this breaker is based on the
following considerations:
a. The Amp rating of the fuse has to be ≤ the Ampacity of wire size at Column 4. 20A
rating has been selected based on Column 2.
b. Closest Standard Ampere Rating of Breaker (20A) has been used - Refer to NEC-2014
(National Electrical Code) - Section 240.6(A) regarding over current protection
c. Type of external AC input breaker (for EVO-1212F-HW / 1224F-HW) : Standard circuit
breaker for 120 VAC Load Center/Breaker Panel/Panel Board
Installation
Maximum AC Input
Current Limit (Parameter
"GRID MAX CURRENT")
(See Note 1)
(Column 2)
20A
20A
20A
20A
NEC Ampacity = 125%
of Column 2
(See Note 2)
(Column 3)
25A
25A
25A
25A
Conductor Size Based
on NEC Ampacity
at Column 5
(See Note 3)
(Column 4)
AWG #12
AWG #12
AWG #12
AWG #12
SAMLEX AMERICA INC. | 49
Size of Breaker
based on Column 4
(See Note 4)
(Column 5)
20A
20A
20A
20A