BuyLog Flippingbook MAR 2024
6-25
MOLDED CASE CIRCUIT BREAKERS, BUYLOG SECTION 6
— Circuit breakers for motor protection Main characteristics
Several different factors must be considered when choosing and coordinating the protection and operating devices, e.g.: • the electrical specifications of the motor (type, power rating, efficiency, cosΦ); • the starting type and diagram; • the fault current and voltage in the part of the network where the motor is installed.
Motor protection
XT5
XT6 800
XT7
Frame size
[A]
400 - 600
800 - 1000- 1200
Poles
[No.]
3
3
3
(AC) 50-60Hz [V] 600
600 600
600 600
Rated service voltage
(DC) [V]
600
Versions
Fixed, Plug-in, Withdrawable
Fixed, Withdrawable Fixed, Withdrawable
Rating level
N S
H L
V
X
N S
H S
H L
Trip units for motor protection
–
–
–
–
–
–
– –
– –
– –
– –
– –
– –
MA (MCP)
Ekip M Dip I (MCP)
Ekip M Dip LIU (MPCB)
Ekip M Touch LRIU (MPCB)
–
–
–
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