Huawei SmartACU2000B Quick Manual page 7

The following table describes the components to be configured in the fiber ring networking scenario.
Location Component
LAN switch (optional)
Fitting
Smart array
bag for
controller
optical
ring
switching
Miniature circuit
breaker (MCB)
Box-type
Three-
transformer
phase
power
switch
NOTE
Select either an MCCB or a knife fuse switch as the three-phase power switch. If you select an

MCCB, ensure that the let-through energy of the MCCB meets requirements. The breaking
capacity depends on the limited short-circuit current on the low voltage side of the box-type
transformer.
Models of the components inside the box-type transformer are specified by the box-type

transformer vendor.
Recommended Model or
Specifications
UT-H605 or ES1000
Low-speed
optical FTLF1323P1BTR-HW
module
PLCLC5S-ST3P302-HW, LC-LC-
Optical
S2-L2, 3ECA1031LCLC002-01-F,
jumper
or LP-LP-2S-P-SM-002
Recommended rated current: 32 A;
number of poles: 2
When the rated AC voltage on

the low-voltage side of the box-
type transformer is less than or
equal to 500 V, the rated voltage
of the knife fuse switch should
be greater than or equal to 500
V.
When the rated AC voltage on

Knife fuse the low-voltage side of the box-
switch type transformer is greater than
(solution 1) 500 V and less than or equal to
800 V, the rated voltage of the
knife fuse switch should be
greater than or equal to 800 V.
Recommended rated current of

the fuse: 32 A; rated current of
the knife fuse switch box ≥ 32 A;
number of poles: 3 (3 fuses for
each knife fuse switch box)
When the rated AC voltage on

the low-voltage side of the box-
type transformer is less than or
equal to 500 V, the rated voltage
of the molded case circuit
breaker (MCCB) should be
greater than or equal to 500 V.
When the rated AC voltage on

MCCB the low-voltage side of the box-
(solution 2) type transformer is greater than
500 V and less than or equal to
800 V, the rated voltage of the
MCCB should be greater than or
equal to 800 V.
Let-through energy ≤ 1.26 x 10

2
A s
Recommended rated current: 32

A; number of poles: 3
6
6
Component
Quantity
Source
1
Can be 2
purchased
from Huawei
8
1
Scenario

with a
double-
column
Prepared by
transformer:
the customer
1
Scenario

with a dual-
split
transformer:
2