SAMLEX AMERICA INC. | 49
SECTION 3 | Installation
LEGEND for Figs 3.9.1(a) and 3.9.1(b)
19(a). Pocket for AC Input/Output Terminals
19(b). Plate to cover pocket 19(a) - The plate is held with 4 mounting screws - M3 (Pitch 0.5 mm) x 6 mm. The plate has 2 holes (27.8 mm/ 1
3/32" diameter) for 3/4" Trade Size Fitting for cable or conduit entry.
20. AC Input/Output Terminal Block
- Terminal hole: 3.5 mm x 3.0 mm for up to AWG #10
- Set Screw: M3 (Pitch 0.5 mm)
21. "INPUT L" - For connecting Line Conductor of AC input wiring
22. "INPUT N" - For connecting Neutral Conductor of AC input wiring
23. "INPUT GND" - For connecting Earth Ground Conductor of AC input wiring
24. "OUTPUT L" - For connecting Line Conductor of output wiring to Electrical Panelboard
25. "OUTPUT N" - For connecting Neutral Conductor of output wiring to Electrical Panelboard
26. "OUTPUT GND" - For connecting Earth Ground Conductor of output wiring to Electrical Panelboard
27. Male/Female Insulated Quick Disconnect for disabling Output Neutral to chassis Ground bond in Inverter Mode (Please see Sections 4.4.1
/ 4.4.2 and Fig 4.1)
28. AC input and output Ground connection to metal chassis - Stud and Nut, M4 (Pitch 0.7 mm)
3.6.3 System Grounding and Output Neutral to Chassis Ground Bond Switching
WARNING!
• In "Inverting Mode" (default condition), the Neutral of the AC output of the unit gets bonded to
the metal chassis of the unit through the internal “Neutral to Chassis Switching Relay” [Relay RY2 in
Fig 4.1].
• In “Charging Mode”, the internal “Output Neutral to Chassis Switching Relay - RY2” disconnects
the Neutral of the AC output connection from the chassis of the unit. The Neutral of the AC output
connection of the unit will get bonded to the Earth Ground through the Neutral to Earth Ground bond
in the AC Breaker Panel/Load Center supplying Grid power / AC output connections of the generator.
• Disabling Neutral to Ground Bond: In some applications, the Output Neutral may be required to
remain isolated from chassis/Ground at all times. For this, automatic Output Neutral to chassis Ground
bond can be disabled by disconnecting the Insulated Male/Female Quick Disconnect [27, Fig 3.9.2(a)]
located in the AC Wiring Compartment in EVO-1212F-HW/1224F-HW. In EVO-1212F/1224F, this
Insulated Male/Female Quick Disconnect is accessible after opening the top cover of the unit.
• System grounding, as required by National / Local Electrical Codes / Standards, is the responsibility of
the user / system installer.
For further details please refer to Sections 4.4.1/ 4.4.2 and Fig 4.1.
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