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8
Features
6
Dry Contacts: 6 Sets of Output Dry Contacts (C1, C2, C3, C4, C5, C6)
Each dry contact supports Normally-Open (NO) or Normally-Closed (NC) signaling.
There are three wiring contact positions per channel (NO, C, NC). Refer to LCD
MENU TREE / SETTINGS / DRY CONTACT section for more information.
• Wiring Gauge: Up to 12 AWG recommended
• Torque Specifications: 13 in•lb (1.47 N•m)
7
Internal Fan
The internal fan reduces operating temperature inside the UPS. The fan runs
continuously when the UPS is running by pulling cool air from the front-side of the
UPS and exhausting warmer air through the UPS rear vents. Do not block input
or output ventilation. The fan can be replaced via the front panel by a trained
electrical technician.
Note: If installing a replacement fan, make sure the fan is of equal size and rating.
8
Grounding Lug
This connector provides a permanent ground connection for the UPS.
• Wiring Gauge: 12 AWG recommended
• Torque Specifications: 13 in•lb (1.47 N•m)
9
Battery Connector
The external battery connector enables the connection of a 48V DC
(SMART1548ET) or 24V DC (SMART1524ET) battery system to the UPS.
10
Rack-Mounting Brackets
The rack mounting brackets enable two-point mounting of the UPS into a 19-inch
equipment rack enclosure. Screws are provided to attach the mounting brackets
to the UPS power module. Rack-mount installation screws and hardware (if
needed) are user-supplied.
11
Battery Temperature Connector
The battery temperature sensor is included with the UPS power module. The
sensor reports temperature of the battery system to the UPS so that the most
efficient charging profile can be used to keep batteries fully charged and increase
battery lifespan. Connect the remote end of the temperature sensor to the
negative terminal of the battery. Connect the other end of the sensor to the BTS
connector on the UPS.
Installation and wiring requires a trained technician.
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