MITSUBISHI ELECTRIC 2033D SERIES UPS systems - Manual (Page 36)

MITSUBISHI ELECTRIC 2033D SERIES UPS
MITSUBISHI
ELECTRIC 2033D SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
3-4
iv. One (1) source feeding the UPS:
(1) Confirm that an external input circuit breaker sized to protect both the converter
input and the bypass line is installed. (Refer to equipment nameplate for current
ratings.) Connect the bypass input power cables from the input service entrance to
the bypass input power terminals, identified as A40, B40, and C40 in Figures 3.2-a,
b. Input cables must be sized for an ampere rating larger than the maximum current
capacity of the UPS. Refer to Table 3.5 for recommended cable sizes.
(2) Using adequately sized conductors per Table 3.5 and referring to the appropriate
figure identified in Figures 3.2-a, b, connect jumper bypass terminals A40, B40,
C40 to converter input power terminals A, B, C as identified in Figures 3.2-a, b.
(3) Referring to Figures 3.2-a, b, connect UPS load terminals A50, B50, C50 and N50
to the load distribution panel. Refer to Table 3.5 for cable sizes.
(4) Connect the external signal terminal block as desired. Refer to section 2.5 and Figure
2.15 for functional description. 12 AWG, or less, shielded conductor is recommended.
NOTES: 1. Confirm that all UPS internal contactors (breakers) "52RC "72B",”52RS”,
and "52C" are open before energizing UPS.
2. UPS power terminals are supplied with stud type fittings. It is recommended
that compression lugs be used to fasten all input/output power cables. Refer to
Table 3.6 for recommended compression lugs and appropriate crimping tool.