Recommended Gfci (Ground Fault Circuit Interruption) Outlets; Ac Terminal Connections (Ms2012, Ms2812, Ms2024, Ms4024, & Ms4048); Figure 2-10, Ac Terminal Block - Sensata Magnum Energy MS Series Owner's Manual

Installation
2.5.3

Recommended GFCI (Ground Fault Circuit Interruption) Outlets

In compliance with UL standards, Sensata tested the following series of GFCIs and found that they
function properly when connected to the inverter's AC output:
• Hubbel #GF520EMBKA
• Leviton 8899-A, N7899, GFNT1, or GNNT2
WARNING: Risk of electrical shock. Use only ground-fault circuit interrupters
[receptacle(s) or circuit breaker(s)] compatible with your MS inverter/charger.
CAUTION: Ground Fault Circuit Interrupters (GFCIs) shall be installed in the RV wiring
system to protect all branch circuits.
2.5.4 AC Terminal Connections (MS2012, MS2812, MS2024, MS4024, & MS4048)
These models have a six-pole AC terminal block and one AC ground terminal to connect the inverter's
AC input and output wiring. This terminal block (Figure 2-10) allows a service/distribution panel (main
panel) to be wired to the inverter's input, and also allows a dedicated panel (sub-panel) between
the inverter's output wiring and the AC loads. To access and view the AC terminal block and ground
terminal, remove the two Phillips screws holding the AC wiring access cover plate (see Figure 1-3,
Item 15). Each connection on the AC terminal block is rated to accept one #14 to #6 AWG (2.1 to
13.3 mm ) CU stranded wire, or two #12 AWG (3.3 mm
2
a M3.5 slotted head screw, and the maximum tightening torque is 16 lbf-in (1.8 N-m).
Info: Figure 2-12 [SI/SO (60A)] uses a #6 AWG (13.3 mm
and splits to two wires to allow 30 amps for each leg (i.e., AC HOT 1 IN and AC HOT 2
IN). IDEAL Industries Inc. (www.idealindustries.com) manufactures a crimp connector
(PN: 412) and a separate insulator (PN: 417) that allow up to two #8 AWG (8.4 mm
wires—with one #6 AWG (13.3 mm
Info: To comply with ABYC requirements for marine installations, the AC terminal has
a stainless steel wire protector to prevent wire damage from the set-screw.
Info: The inverter's NEUT IN and NEUT OUT terminals are electrically isolated from
each other while inverting. If the input and output neutrals must be connected together,
the inverter's neutral-to-ground connection must be disconnected (see Section 2.6.6).
The AC ground terminal can accept one #14 to #6 AWG (2.1 to 13 mm
uses a slotted head screw and has a recommended maximum tightening torque of 45 in-lbf (5.1
N-m). For multiple ground wires, use a pressure or mechanical connector to attach the single wire
from the AC ground terminal to the input and output ground connections.
HOT 1 OUT
HOT 2 OUT
NEUT OUT
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•
) wire to be connected together.
2

Figure 2-10, AC Terminal Block

Cooper VGF15W
) CU stranded wires. Each connection uses
2
) CU wire to carry 60 amps,
2
2
© 2016 Sensata Technologies
)
2
) CU stranded wire. It
HOT 2 IN
HOT 1 IN
NEUT IN
AC GROUND
(In & Out)