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NOTES FOR TABLE 3.3 - AC OUTPUT WIRING AND BREAKERS
1) Column 1 indicates Model No and Output Power (VA)
2) Column 2 indicates the Rated AC Output Current in Inverter Mode
3) Column 3 indicates NEC Ampacity based on which the output-wiring conductor is sized. This NEC Ampacity is not
less than 125% of the Rated Output Current in Inverter Mode (Column 2). - Refer to NEC-2014 (National Electrical
Code) - Section 215.2(A)(1)(a) regarding Feeder Circuit Conductors. PLEASE NOTE that when the unit is operating in
Inverter Mode, it is considered to be an AC source that is feeding power to the Load Center / Breaker Panel on the
load side. Hence, the AC output circuit of the unit is considered to be a Feeder Circuit for purposes of NEC-2014.
4) Column 4 indicates conductor size for the output side wiring. The size is based on NEC-2014 (National Electrical
Code) - Ampacity Table 310.15(B)(16) for Raceway. Conductor size is based on (i) NEC Ampacity (Column 3),
(ii) conductor temperature of 75°C and (iii) ambient temperature of 30°C / 86°F.
5) Column 5 indicates the Amp rating of breaker. Following should be considered:
a) Ampere rating should not be less than NEC Ampacity (Column 3) - Refer to NEC-2014 (National Electrical Code)
- Section 215.3 regarding over-current protection of Feeder Circuit Conductors
b) Closest Standard Breaker Ampere Rating of 15A has been used - Refer to NEC-2014 (National Electrical Code) -
Section 240.6(A) regarding Standard Ampere Ratings
c) As Standard Breaker Rating does not match the required NEC Ampacity at Column 3 (12.5A), the next higher
Standard Ampere Rating of the breaker (15A) has been used
- Refer to NEC-2014 (National Electrical Code) - Section 240.4(B) regarding over current devices rated 800
Amps or less
d) Type of breaker: Standard circuit breaker for 120 VAC Load Center /Breaker Panel
e) EVO-1212F and EVO-1224F use built-in Breaker (14, Fig 2.1). External 15A Breaker is required to be used for
EVO-1212F-HW / 1224F-HW.
3.10 GFCI PROTECTION FOR VEHICLE APPLICATION
When EVO-1212F-HW and EVO-1224-HW are installed in vehicles, ensure that Ground Fault Circuit Interrupter(s)
are installed in the vehicle wiring system to protect all branch circuits. Details of tested and approved GFCI’s are
given in Table 1.5.
EVO-1212F and EVO-1224F have built-in GFCI outlet.
3.11 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND
INFO
Please read following on-line White Papers for complete understanding of Grounding at www.
samlexamerica.com (Home > Support > White Papers):
• “Grounded Electrical Power Distribution"
• “Grounding System and Lightning / Ground Fault Protection”
SECTION 3 | Installation