Delta RT Series User Manual

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Chapter 7 : Connection and Wiring
7.1 UPS Connection and Wiring Warnings
When connecting the UPS to the mains and the loads, it is highly recommended that you install
the protective devices. Please refer to the table below.
Model Maximum current of branch breaker
UPS102R1RT0B0B5 15A
UPS202R1RT0B0B5 20A
UPS302R1RT0B0B5 30A
The protective devices must be approved components that meet safety certifications.
The power supplying to the UPS must be single-phase in accordance with the unit's rating label,
and the UPS must be properly grounded.
7.2 External Battery Pack Connection
To increase the battery backup time, you can connect several external battery packs to the UPS.
Please follow the steps below (
Figure 7-1
) and information in
5.6 External Battery Connector
to
complete the connection.
(Figure 7-1: External Battery Pack Connection)
Insert the battery cable into the external battery connector  and firmly fix the battery cable.
Connect the other end to the external battery connector on the Delta external battery pack. Make
sure that the positive cable (+) connects to the positive pole (+) and the negative cable (-)
connects to the negative pole (-).

Delta RT Series Specifications

General

Transfer Time	0 ms
Topology	Online Double Conversion
Output Voltage	220V/230V/240V (selectable)
Input Frequency Range	40Hz to 70Hz
Output Frequency	50 Hz ± 0.1% or 60 Hz ± 0.1%
Waveform	Pure Sine Wave
Battery Type	Sealed Lead-Acid (SLA)
Communication Ports	RS232, USB, Optional SNMP
Phase	Single Phase
Form Factor	Rackmount/Tower
Operating Temperature	0°C to 40°C
Humidity	0% to 95% (non-condensing)
Protection Features	Overload, short circuit, over temperature, battery deep discharge
Storage Temperature	-15 ~ 50 °C (5 ~ 122 °F)