China Suppliers CNKA offers bulk molded case circuit breakers (DC MCCBs) that are suitable for DC power grid circuits, with a rated voltage range from DC250V to DC1000V and a rated current from 10A to 1250A. These MCCBs provide overload long delay protection and short-circuit instantaneous protection, making them ideal for distributing electrical energy and safeguarding lines and power equipment against overloads, short circuits, and other faults. The circuit breaker's casing is made of durable plastic material.
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TECHNICAL DATA |
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Type |
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YTTM1-125/PV2 |
YTTM1-250/PV2 |
YTTM1-400 |
YTTM1-630 |
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Pole |
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2P |
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Max Rated Current |
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125A |
250A |
400A |
630A |
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Electrical Characteristics |
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Rated Working Voltage |
Ue |
500V DC |
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Rated Current |
In(A) |
63A,80A,100A,125A |
125A,160A,200A,250A |
315A |
500A |
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Rated Insulated Voltage |
Ui |
550VDC |
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350A |
630A |
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Rated Impulsed Voltage |
Uimp |
8KV |
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400A |
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1Min Power Frequency WithstandVoltage |
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3.8KV |
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Ultimate Breaking Capacity |
Icu |
15kA |
20kA |
25kA |
35kA |
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RunBreaking Capacity |
Ics |
15kA |
20kA |
25kA |
35kA |
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Protection |
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Thermal Magnetic Type |
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Tripping Type |
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Control And Indication |
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Optional |
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Control Manual |
Direct(RHD) |
Optiona |
164.5×79.5×118mm |
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Extended(ERH) |
Optional |
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Mode MOD |
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Optional |
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Shunt Release(SHT) |
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Optional |
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Auxiliary Release |
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Yes |
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Terminal End Cover |
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Yes |
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Interphase Barriers |
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Service Life/Cycle Operation |
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Mechanical |
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10000 |
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Electrical |
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2000 |
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Size(L×W×H) |
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150.5×64.5×119mm |
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Ingress Protection |
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All Sides IP40,Connection Terminal IP20 |
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Installation Environment |
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Comply With |
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IEC60947-2/GB14048.2 |
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Storage Temperature |
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-40℃~+85℃ |
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1. The operating mechanism features quick closing and quick breaking functions.
2. In the contact arc extinguishing system, the dynamic and static contacts utilize the principle of parallel conductors. The static contacts are H-shaped and designed to repel, enabling rapid breaking under high current. Components made from high arc-resistant materials are installed around the dynamic and static contacts to facilitate rapid arc extinguishing.
3. The structure is compact and the volume is small.
4. Various models, including thermal magnetic, leakage current, DC, and intelligent types, share unified overall dimensions.
5. Accessories can be independently installed, allowing users to easily open the accessory cover to install or replace them.
6. Mechanical and electrical interlocking can be installed between two circuit breakers.
7. The operation is safe and reliable with zero or short flashover.
8. Easy to use, allowing for on-site installation by users.
Molded case DC circuit breakers are ideal for DC power grid circuits with rated voltages from DC250V to DC1000V and rated currents from 10A to 1250A. These circuit breakers feature an operating mechanism that quickly achieves closing and breaking functions. Their compact structure and small volume make them highly convenient to use.
Address
Jingtai Testing Equipment, Xiangyang Industrial Zone, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province
Tel
