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Product Introduction
TM1Z-250, this type of Moulded case DC circuit breakers are suitable for large photovoltaic systems and energy storage systems, with load isolation and overload/short-circuit protection, also for infrequent switching during normal line operation, and can quickly disconnect DC system fault currents to ensure the stable operation of inverters, junction boxes and battery banks.
Yuming Electric’s TM1Z-250 is designed for direct current control circuit applications for the overcurrent protection of appliances or electrical equipment. We are committed to design products that meets the requirement and standards of PV sector.
Product Parameter
Model | TM1Z-250 | |
Rated current In(A) | 125,140,160,180,200,225,250 | |
Rated working voltage Ue(V)DC | 250V, 500V, 750V, 1000V | |
Rated insulation voltage Ui(V) | 1000V | |
Rated impulse withstand voltage Uimp(kV) | 8kV | |
Test pressure for one minute(V) | 3550 | |
Ultimate short circuit breaking capacity(kA)Icu (Ics=75%Icu) | 250V | 20 |
500V | 20 | |
750V | 20 | |
1000V | 20 | |
Mechanical life | Total number of times | 7000 |
Electrical life | Total number of times | 2000 |
Total breaking time (ms) | 20 | 20 |
Mounting position | Any position | |
Availability of isolation characteristics | Yes | |
Standard | IEC60947-2、IEC60947-1、GB14048.1、GB14048.2 | |
Permissible ambient temperature | -25℃~+50℃ | |
Protection class | IP20 | |
Available with accessories | Auxiliary, alarm, sub-excitation, hand-operated, electrically operated, mechanical interlock | |
Arcing distance(mm) | ≧50 | |
Instantaneous action value | 12In | |
Mounting method | Fixed, insertion type | |
Features
It has overload and short-circuit protection. Its purpose is to protect the safety of circuits in solar systems.
It can be used in photovoltaic solar power, UPS, Battery , DC switching power supply system,distribution Apparatusand other applications.
FAQ
Q:Is voltage important for DC breakers?
A:You need to keep the voltage below 32V, but not because the breaker will trip if you have a voltage higher than that. The problem is that if the voltage is too high when the breaker trips, it may not be able to stop the current because of the arcing.
Q:How do I choose an MCCB?
A:Load. The current carrying capacity (In, A) of the circuit breaker should be higher than the expected load in the circuit.
Product Introduction
TM1Z-250, this type of Moulded case DC circuit breakers are suitable for large photovoltaic systems and energy storage systems, with load isolation and overload/short-circuit protection, also for infrequent switching during normal line operation, and can quickly disconnect DC system fault currents to ensure the stable operation of inverters, junction boxes and battery banks.
Yuming Electric’s TM1Z-250 is designed for direct current control circuit applications for the overcurrent protection of appliances or electrical equipment. We are committed to design products that meets the requirement and standards of PV sector.
Product Parameter
Model | TM1Z-250 | |
Rated current In(A) | 125,140,160,180,200,225,250 | |
Rated working voltage Ue(V)DC | 250V, 500V, 750V, 1000V | |
Rated insulation voltage Ui(V) | 1000V | |
Rated impulse withstand voltage Uimp(kV) | 8kV | |
Test pressure for one minute(V) | 3550 | |
Ultimate short circuit breaking capacity(kA)Icu (Ics=75%Icu) | 250V | 20 |
500V | 20 | |
750V | 20 | |
1000V | 20 | |
Mechanical life | Total number of times | 7000 |
Electrical life | Total number of times | 2000 |
Total breaking time (ms) | 20 | 20 |
Mounting position | Any position | |
Availability of isolation characteristics | Yes | |
Standard | IEC60947-2、IEC60947-1、GB14048.1、GB14048.2 | |
Permissible ambient temperature | -25℃~+50℃ | |
Protection class | IP20 | |
Available with accessories | Auxiliary, alarm, sub-excitation, hand-operated, electrically operated, mechanical interlock | |
Arcing distance(mm) | ≧50 | |
Instantaneous action value | 12In | |
Mounting method | Fixed, insertion type | |
Features
It has overload and short-circuit protection. Its purpose is to protect the safety of circuits in solar systems.
It can be used in photovoltaic solar power, UPS, Battery , DC switching power supply system,distribution Apparatusand other applications.
FAQ
Q:Is voltage important for DC breakers?
A:You need to keep the voltage below 32V, but not because the breaker will trip if you have a voltage higher than that. The problem is that if the voltage is too high when the breaker trips, it may not be able to stop the current because of the arcing.
Q:How do I choose an MCCB?
A:Load. The current carrying capacity (In, A) of the circuit breaker should be higher than the expected load in the circuit.
