Product Manual

48 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 49
TABLE 3.2 SIZING OF AC INPUT WIRING AND BREAKERS
Model No.
(Rated Output Power
in Inverter Mode)
(Column 1)
Maximum AC Input
Current Limit (Parameter
"GRID MAX CURRENT")
(See Note 1)
(Column 2)
NEC Ampacity = 125%
of Column 2
(See Note 2)
(Column 3)
Conductor Size Based
on NEC Ampacity
at Column 5
(See Note 3)
(Column 4)
Size of Breaker
based on Column 4
(See Note 4)
(Column 5)
EVO-1212F
(1200VA)
20A 25A AWG #12 20A
EVO-1212F-HW
(1200VA)
20A 25A AWG #12 20A
EVO-1224F
(1200VA)
20A 25A AWG #12 20A
EVO-1224F-HW
(1200VA)
20A 25A AWG #12 20A
NOTES FOR TABLE 3.2 - SIZING OF GRID AND BREAKERS
1.
Column 2 indicates the Maximum AC Input Curr
ent 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 curr
ent
(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
.
T
ype of external AC input breaker (for EVO-1212F-HW / 1224F-HW) : Standard circuit
breaker for 120 VAC Load Center/Breaker Panel/Panel Board
SECTION 3 | Installation