SamplexPower STS-30 Owner's Manual - Section 5 |
8 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 9
3. A ¾” cable clamp has been provided (4, Fig. 3.1). Additional ¾” and 1” knockouts
have been provided for convenience. Please ensure that a cable clamp is used for
cable entries.
4. For making firm connections to the terminals (T1 to T6, Fig 3.2) of the Transfer
Relay, please crimp appropriate size of insulated ring / spade lugs on the ends of
the conductors of the cables.
5. Connect the Grounding Conductors (Green / bare wire) of the cables to the spare
Grounding Studs marked (
)
6. Two or more conductors can be spliced together using the appropriate size of
twist-on type of cone shaped, plastic insulated Wire Nut Connector - also called
"Marrette" (See Fig. 5.1). The connector twists over the wires to make a tight
connection around the wires. A square-cut spring inside provides tension on the
wires to hold them secure. As you tighten the wire connector, the spring draws
tighter around the wires.
Fig. 5.1. Twist-on type of Wire Nut Connector.
To splice the wire leads using the Wire Nut Connector, hold the
bare ends of the wires parallel to each other so that the wire
tips are even, then secure with the wire nut. Use the proper size
nut. Manually tighten nuts as tightly as possible. Verify that all
connections are tightened.
5.5 INSTALLATION CONFIGURATIONS
5.5.1 Pre-wired Configuration
This Transfer Switch has been especially pre-wired for ease of connections for setting up
a backup power / UPS (Un-interruptible Power Supply) system with Grid / Shore Power
as the Primary Source and the Inverter as the Backup Source. The System will require an
Inverter, a Battery Charger and batteries. General overview and features for the pre-
wired configuration are given below (Refer to Fig. 5.2).
- Primary AC power of up to 3600 VA (30A at 120 VAC) can be provided by Grid (also
called Shore Power Cord or “Cord” in RVs). This is connected to the Normally Open
Contacts T3 and T4. NEMA-20R Duplex Outlets (3, Fig. 3.1) have been provided
on the side of the unit for ease of connecting a Battery Charger or Converter (on
board Converter in RVs).
- Back-up power of up to 3600 VA (30A at 120 VAC) can be provided from an Invert-
er. A 15A power cord (1, Fig 3.1) with a 15A, NEMA5-15P plug (2, Fig. 3.1) has been
provided to allow easy, pluggable connection to Inverter of up to 1800 VA capacity.
For connecting higher capacity Inverter > 1800A & up to 3600 VA, replace the
wiring with AWG#10/3 and connection arrangement rated for 120 VAC, 30A.