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MITSUBISHI
ELECTRIC
2033C SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
3
-4
MITSUBISHI ELECTRIC 2033C SERIES UPS
NOTES:
1. Confirm that all UPS internal contactors (breakers) "CB1", "CB2", and
"CB3" 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 3.5 for recommended compression lugs and
appropriate crimping tool
Table 3.4 Recommended Cable Size and Torque Requirements
UPS Input Side * 1 Output Side * 1
Capacity (kVA) Cable *
2
Size
Torque
(in. lbs)
Cable *
2
Size
Torque
(in. lbs)
7.5kVA (208V) 8 AWG or larger 180 in. lbs 8 AWG or larger 180 in. lbs
10kVA (208V) 8 AWG or larger 180 in. lbs 8 AWG or larger 180 in. lbs
15kVA (208V) 8 AWG or larger 180 in. lbs 8 AWG or larger 180 in. lbs
20kVA (208V) 6 AWG or larger 180 in. lbs 6 AWG or larger 180 in. lbs
30kVA (208V) 2 AWG or larger 180 in. lbs 2 AWG or larger 180 in. lbs
40kVA (208V) 2/0 AWG or larger 180 in. lbs 2/0 AWG or larger 180 in. lbs
50kVA (208V) 2/0 AWG or larger 180 in. lbs 2/0 AWG or larger 180 in. lbs
*1 - Voltage drop across power cables not to exceed 3% of nominal source voltage.
*2 - Allowable ampere ratings based on 90ﾟC insulation at an ambient temperature of 30ﾟC.
No more than 3 conductors in a raceway without de-rating. Copper conductors assumed.
TABLE 3.5 Crimp Type Compression Lug
WIRE
SIZE
WIRE
STRAND
RECOMMENDATION CRIMP TOOL REQUIRED
BURNDY TYPE Y35 OR Y46
(CODE) CLASS VENDOR CAT. NO. COLOR KEY DIE INDEX
8 B BURNDY YA8C-L2 RED 49
6 B BURNDY YA6C-L3 BLUE 7 / 374
4 B BURNDY YA4C-L3 GRAY 8 / 346
2 B BURNDY YA2C-L BROWN 10
2/0 B BURNDY YA26-L3 BLACK 13
NOTE: When using crimp type lugs, the lugs should be crimped to the
specifications given in the manufacturer's instructions for both crimp tool
and lug.