bonitron M3460UC, Customer Reference Manual

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M3460
40
Table 6-5: M3460 Model Specifications for 230
– 480 VAC Systems
DC B
US
C
URRENT

B
ACKPLATE
S
IZE
C
IRCUIT
C
ONFIGURATION
R
ECOMMENDED
F
USE
R
ATING

SCCR
R
ATINGS
D
RIVE
B
US
STORAGE
BUS
85 A R10 2-stage 80 A, 700 V 125 A, 600 V
10 kA

127 A R10 2-stage 125 A, 700 V 200 A, 600 V
170 A R9 4-stage 175 A, 700 V 250 A, 600 V
255 A R11 4-stage 250 A, 700 V 400 A, 600 V
340 A R11 4-stage 350 A, 700 V 500 A, 600 V
18 kA

425 A R11 4-stage 400 A, 700 V 600 A, 600 V

The input power source must be capable of handling a 2-second current surge at twice the nominal rating
for the M3460. Maximum duty cycle is 1% at full rated load.

Fuses recommended for use with the M3460 are Gould-Shawmut A70QS series, Buss FWP series, or
equivalent semiconductor fuses. These are required for UL 508C compliance.

Suitable for use on a circuit capable of delivering not more than 10,000 RMS symmetrical amperes, 700
volts maximum when protected by recommended fuses.

Suitable for use on a circuit capable of delivering not more than 18,000 RMS symmetrical amperes, 700
volts maximum when protected by recommended fuses.
6.2. E
FFICIENCY
/ P
OWER
C
ONSUMPTION
All M3460 modules are 93% efficient or better at full load. Power consumption in
standby mode is less than 200W.
6.3. B
RANCH
C
IRCUIT
P
ROTECTION AND
W
IRE
S
IZING
The following information is supplied for assistance in selecting the appropriate field
wiring sizes and power source fuse ratings for the M3460:
•
Wire size must be coordinated with circuit protection devices and IR drop of wire.
It is NOT necessary to size wire for continuous duty. Maximum allowed duty cycle
for the M3460 is 1%.
•
For branch circuit protection, steady state Class J time delay or equivalent fusing
should be used to support the requirement for 2-second 2x surge capability for
M3460 models. The recommended minimum current rating for the power source
fusing is listed in Table 6-7, based on the DC bus current rating of the M3460.
•
The field wiring sizes listed in Table 6-7 ensure a

10V drop for wire lengths of

100 feet and are compatible with the recommended steady state circuit branch
protection fusing listed. The wire gauge selected for field wiring to the M3460
should be equal to or greater than that listed in Table 6-7.
•
Use copper wiring rated 75°C or equivalent for field wiring terminals.
•
These devices do not provide motor overload protection.
Table 6-7: M3460 Input Power Wiring Sizes and Fusing
M3460R
DC B
US
C
URRENT
R
ATING
M
INIMUM
C
IRCUIT
B
RANCH
P
ROTECTION
F
USING
(C
LASS
J T
IME
D
ELAY
)
R
ECOMMENDED
F
IELD
W
IRING
S
IZES
85 Amps 70 Amps 4 AWG
127 Amps 100 Amps 2 AWG
170 Amps 125 Amps 1/0 AWG