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Product Introduction
The TM1Z-125 DC MCCB DC circuit breakers are designed to provide overcurrent protection within appliances or electrical equipment that already provide or do not require branch circuit protection. It is a type of professional DC moulded case circuit breaker that are widely used in solar power systems.
Yuming Electric’s TM1Z-125 has long-delay overload protection and short-circuit instantaneous protection, and is used to distribute power and protect lines and power supply equipment from overload and short-circuit faults.
Product Parameter
Model | TM1Z-125 | |
Rated current In(A) | 20,25,32,40,50,63,80,100,125 | |
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
Suitable for DC applications such as PV,UPS,batteries and data centers etc.
Suitable for large photovoltaic systems, energy storage systems, with load isolation and overload short circuit protection.
Small size, high breaking capacity, short flashover, low temperature rise, etc.
FAQ
Q:Can AC MCCB be used for DC?
A:Only use MCCBs with a DC rating for DC circuits, as the arc cannot be extinguished and the wire will overheat and cause a fire.
Q:Are DC breakers directional?
A:DC currents have a unique "unidirectional" flow of charge, a constant direction, for example in batteries or solar cells, so DC circuit breakers must respect this single direction of charge. Reversing the polarity can lead to safety problems and irreversible damage.
Product Introduction
The TM1Z-125 DC MCCB DC circuit breakers are designed to provide overcurrent protection within appliances or electrical equipment that already provide or do not require branch circuit protection. It is a type of professional DC moulded case circuit breaker that are widely used in solar power systems.
Yuming Electric’s TM1Z-125 has long-delay overload protection and short-circuit instantaneous protection, and is used to distribute power and protect lines and power supply equipment from overload and short-circuit faults.
Product Parameter
Model | TM1Z-125 | |
Rated current In(A) | 20,25,32,40,50,63,80,100,125 | |
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
Suitable for DC applications such as PV,UPS,batteries and data centers etc.
Suitable for large photovoltaic systems, energy storage systems, with load isolation and overload short circuit protection.
Small size, high breaking capacity, short flashover, low temperature rise, etc.
FAQ
Q:Can AC MCCB be used for DC?
A:Only use MCCBs with a DC rating for DC circuits, as the arc cannot be extinguished and the wire will overheat and cause a fire.
Q:Are DC breakers directional?
A:DC currents have a unique "unidirectional" flow of charge, a constant direction, for example in batteries or solar cells, so DC circuit breakers must respect this single direction of charge. Reversing the polarity can lead to safety problems and irreversible damage.
