Standard: IEC60947-2
Type of trip: Thermo-magnetic
Rated current: 1~63A
Rated voltage: 230/400V~240/415V
Number of poles: 1P,2P,3P,4P
Rated short-circuit breaking capacity: 15kA
Ambient air temperature: -25...+40 ºC
Connection: From top and bottom
ETM1-63UH AC circuit breaker provides reliable short-circuit and overload protection for industrial power systems and photovoltaic solar installations. With an ultimate breaking capacity (Icu) of 15kA, it is designed to withstand high fault currents in 230/400VAC systems, making it an optimal choice for heavy-duty applications. Its compliance with IEC60947-2 ensures global safety standards, while its advanced thermal-magnetic tripping characteristic guarantees precise fault detection and isolation.
Application-Specific Guide for 15kA Breaking Capacity
1. Industrial Power Distribution Systems
ETM1-63UH is ideal for industrial facilities, protecting the main and sub-distribution boards operating at 400/415VAC. Its 15kA breaking capacity ensures reliable performance in environments with high fault current levels, such as factories and warehouses.
Use Cases:
• Protection of motor-driven machinery
• Main and branch circuit breakers in industrial panels
• Backup power distribution systems
2. Commercial Solar Photovoltaic (PV) Systems
For grid-tied PV systems, particularly in large-scale commercial deployments, this circuit breaker handles high current spikes on the AC output side of central or string inverters. Its advanced tripping mechanism ensures inverter safety and prevents potential damage to the grid connection.
Use Cases:
• AC combiner box protection in 30-100kW systems
• Three-phase inverters in commercial solar farms
• AC distribution panels for solar power plants
3. Critical Backup Power Systems
In applications such as data centers and telecommunications, the ETM1-63UH ensures robust protection for sensitive equipment connected to UPS or diesel backup generators. With its high dielectric and impulse withstand voltages, it is a reliable choice for ensuring operational stability during power fluctuations.
Use Cases:
• Uninterruptible Power Supply (UPS) protection
• Diesel generator output circuits
• Industrial battery energy storage systems
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General data |
|
|
Protection |
Overcurrent and short circuit |
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Type of trip |
Thermo-magnetic |
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No. of poles |
1P, 2P, 3P, 4P |
|
Rated Current |
1,2,3,4,5,6,10,16,20,25,32,40,50,63A |
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Rated frequency |
50/60Hz |
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Insulation voltage (Ui) |
415V |
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Pollution degree |
2 |
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Rated operational voltage (Ue) |
1P:230/400VAC,240/415VAC; 2P,3P,4P:400/415VAC 1P: 80VDC; 2P: 125VDC |
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Rated ultimate short circuit breaking capacity Icu (kA) |
15kA |
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Rated service short circuit breaking capacity Ics (kA) |
7.5kA |
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Rated impulse withstand voltage (Uimp) (1.2/50μs) |
6kV |
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Dielectric test voltage |
2kV (50/60Hz, 1 min.) |
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Thermal tripping characteristics |
1.05In No tripping within an hour 1.30In Tripping within an hour |
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Instantaneous tripping characteristics |
8In-12In |
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Mechanical data |
|
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Electrical life |
4,000 Cycles |
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Mechanical life |
20,000 Cycles |
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Contact position indication |
green OFF / red ON |
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Protection degree |
IP20 |
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Reference temperature |
30℃ |
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Operating ambient temperature (with daily average≤35℃) |
-25℃~ +55℃ |
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Storage temperature |
-30℃ ~ +70℃ |
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Installation |
|
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Terminal connection type |
Cable/Pin-type/ Fork-type busbar |
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Terminal block |
Screw press-connected |
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Max. terminal size for cable |
25mm² |
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Max. Tightening torque |
2.5Nm |
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Mounting type |
Mounting on 35mm DIN rail |
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Incoming method |
Bi-Directional |
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