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NOTES FOR TABLE 3.3 - AC OUTPUT WIRING AND BREAKERS
1)
Column 2 indicates the Rated AC Output Current in Inverter Mode
2)
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
/ Panel Board on the load side. Hence, the AC output circuit of the unit is considered to be a
Feeder Circuit for purposes of NEC-2014.
3)
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.
4)
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
Grounding means connecting (bonding) to Earth Ground or to the other designated Ground.
For example, in a motorhome / caravan, the metal frame of the motorhome / caravan is nor-
mally designated as the Negative DC Ground / RV Ground. Similarly, all metal portions of boats
and marine craft are bonded together and called Boat Ground.
Grounding is required for (i) protection against damage due to lightning strike and (ii) protec-
tion against electric shock due to “Ground Fault”. In case of EVO
TM
, “Ground Fault” may
occur due to inadvertent contact between an energized ungrounded current carrying conduc-
tor and exposed metal surface resulting in voltage getting fed to (i) the metal chassis of the
EVO
TM
or (ii) to the metal chassis of the devices connected to EVO
TM
or (iii) to the metal frame/
SECTION 3 |
Installation
Summary of Contents for Evolution EVO-1212F
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