Procedure For Cable Connections - Mitsubishi 2033C SERIES Owner Technical Manual

MITSUBISHI
ELECTRIC
Note: 40kVA and 50kVA UPS batteries are external to module cabinet.
Please refer to the remote battery supply installation manual.
3.
CAUTION - Do not dispose of battery or batteries in a fire. The battery may
explode.
4.
CAUTION - Do not open or mutilate the battery or batteries. Released electrolyte
is harmful to the skin and eyes and may be toxic.
5. CAUTION - A battery can present a risk of electrical shock and high short circuit
current. The following precautions should be observed when working on batteries:
- Remove watches, rings, or other metal objects.
Use tools with insulated handles.
-
- Wear rubber gloves and boots.
- Do not lay tools or metal parts on top of batteries.
Disconnect charging source prior to connecting or disconnecting battery
-
terminals.
3.4 Procedure for Cable Connections (Refer to Table 3.4 for cable sizes.)
I. Confirm the capacity of the UPS being installed. Identify the input/output power terminal
blocks as shown in the appropriate Figure 3.2 or Figure 3.3-Figure 3.5.
II. Connect the grounding conductor from the input service entrance to the UPS ground bar.
III. Confirm that an external input circuit breaker sized to protect both the converter input and
the bypass lines is installed. Consult equipment nameplate for current ratings. Connect
the AC power source cables from the input service entrance to the UPS' INPUT power
terminals identified as A, B, C and N in Figure 3.3-Figure 3.5. Input cables must be sized
for an ampere rating larger than the maximum current capacity of the UPS.
IV. Refer to Table 3.4 for recommended cable sizes. Referring to Figure 3.3-Figure 3.5,
connect UPS' OUTPUT load terminals A, B, C and N to load distribution panel.
V. Connect external signal terminal block as needed. Refer to section 2.2 and Figure 2.3 for
functional description. 12 AWG, or less, shielded conductor is recommended.
2033C SERIES UPS
OWNERS / TECHNICAL MANUAL
MITSUBISHI ELECTRIC 2033C SERIES UPS
Page Number:
3-3