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Product detail
STM6E Series Electronic Intelligent MCCB
Product overview
◆Circuit breaker has ground fault and thermal analog protection functions, pre-alarm indication over-current indication, load current indication, digital current analysis technology, and it can achieve a higher level of protection.
STM6E and STM6EL series electronic circuit breakers are applicable for low-voltage power systems of AC 50Hz, rated operating voltage up to 1000V and rated operating current from 16A to 800A.
Features
◆Circuit breaker can be equipped with undervoltage release, shunt release, auxiliary contacts, alarm contacts, electric operating mechanism, rotary operating handle and other accessories.
◆Circuit breaker has protection functions of overload long delay, short-circuit short delay and short-circuit instantaneous protection, the user can set the required protection characteristics (user only needs to operate the DIP switch for settings of protection function parameters).◆Circuit breaker has ground fault and thermal analog protection functions, pre-alarm indication over-current indication, load current indication, digital current analysis technology, and it can achieve a higher level of protection.
◆STM6EL series is circuit breaker with residual current protection function.
Panel and function description
Intelligent release panel
Tripping test port (TEST)：
1Tripping test input DC12V(+)
2 Tripping test input DC12V(-)
Panel adjustment knob as follows in turn: IR(A) Isd(x IR) Ii(x IR)
◆IR: Overload long delay tripping setting current; Isd:
◆Short-circuit short delay tripping setting current;
◆Ii: Short-circuit instantaneous tripping setting current;
The rest parameters are set by factory default, or set by remote communication, as follows:
◆tR: Overload long delay setting time, factory default: 60s;
◆tsd: Short-circuit short delay setting time, factory default: 0.1s;
◆Ip: Overload pre-alarm setting current, factory default: 0.85*IR;
Intelligent communication port (COM):
2：Power input DC24V(-) 5：485B-
1：Power supply input DC24V(+)
2：Power supply input DC24V(-)
3：485A+
4：485A+
5：485B-
◆Short-circuit short delay tripping setting current;
◆Ii: Short-circuit instantaneous tripping setting current;
The rest parameters are set by factory default, or set by remote communication, as follows:
◆tR: Overload long delay setting time, factory default: 60s;
◆tsd: Short-circuit short delay setting time, factory default: 0.1s;
◆Ip: Overload pre-alarm setting current, factory default: 0.85*IR;
Intelligent communication port (COM):
2：Power input DC24V(-) 5：485B-
1：Power supply input DC24V(+)
2：Power supply input DC24V(-)
3：485A+
4：485A+
5：485B-
6：485B-
7： Closing and opening common terminal of electric operating mechanism
8：Closing and opening common terminal of electric operating mechanism
9：Opening of electric operating mechanism
10：Closing of electric operating mechanism
7： Closing and opening common terminal of electric operating mechanism
8：Closing and opening common terminal of electric operating mechanism
9：Opening of electric operating mechanism
10：Closing of electric operating mechanism
