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Description
3P 20A DC MCB TOMC7-63 is suitable for extreme environmental conditions, fast breaking, with excellent shock resistance and vibration resistance.
It provide accurate overload and short-circuit protection for conductors and connected equipment, and it is suitable for extreme environmental conditions.
3P 20A DC MCB TOMC7-63 also can provide over-current and short-circuit protection for 3KV DC circuits.
20A DC MCB Special Tips
1. 20A DC MCB is for non-professional operation by those untrained, and no maintenance is required.
2. Choose a suitable trip curve and install it correctly. MCB will trip and close its protected circuit when a fault occurs, thereby providing protection against electric shock.
3. It is recommended to install special devices on the upstream line of the MCB, such as surge protection devices, lightning arresters, etc., to prevent potential surge voltage and current from appearing on the power input side.
4. Satisfying conditions and applications as mentioned above, MCB with “ON-OFF” indicating device is considered suitable for isolation function.
| Model Name | TOMC7 |
| Pole No: | 3 |
| Rated voltage: | DC550V |
| Rated current(A): | 20 |
| Tripping curve: | B, C, D |
| Rated short-circuit capacity(lcn): | 6kA |
| Rated frequency: | 50/60Hz |
| Energy limiting class: | 3 |
| Rated impulse withstand voltage: | 6.2kV |
| Electro-mechanical endurance: | ≥ 6000 |
| Connection terminal: | Screw terminal / Pillar terminal with calmp |
| Connection capacity: | Rigid conductor up to 25mm² |
| Fastening torque: | 2.0Nm |
| Installation: | On symmetrical DIN rail 35mm / Panel mounting |
| Standards | IEC 60947-2, IEC 60898-1, EN60898-1 , AS/NES 60898.1 |
| IP degree of protection | IP40 for modular enclosure conforming to IEC 60529 |
| IP20 conforming to IEC 60529 | |
| Operating altitude | 2000 m |
| Ambient air temperature for operation | -35°Cto +70°C |
| Type | Width 9 mm modules | ||||
| 2P | Rating (In) | B Curve | C Curve | D Curve |
6 |
| 1A | TOMC7-63/3/B1 | TOMC7-63/3/C1 | TOMC7-63/3/D1 | |
| 3A | TOMC7-63/3/B3 | TOMC7-63/3/C3 | TOMC7-63/3/D3 | ||
| 5A | TOMC7-63/3/B5 | TOMC7-63/3/C5 | TOMC7-63/3/D5 | ||
| 6A | TOMC7-63/3/B6 | TOMC7-63/3/C6 | TOMC7-63/3/D6 | ||
| 10A | TOMC7-63/3/B10 | TOMC7-63/3/C10 | TOMC7-63/3/D10 | ||
| 16A | TOMC7-63/3/B16 | TOMC7-63/3/C16 | TOMC7-63/3/D16 | ||
| 20A | TOMC7-63/3/B20 | TOMC7-63/3/C20 | TOMC7-63/3/D20 | ||
| 25A | TOMC7-63/3/B25 | TOMC7-63/3/C25 | TOMC7-63/3/D25 | ||
| 32A | TOMC7-63/3/B32 | TOMC7-63/3/C32 | TOMC7-63/3/D32 | ||
| 40A | TOMC7-63/3/B40 | TOMC7-63/3/C40 | TOMC7-63/3/D40 | ||
| 50A | TOMC7-63/3/B50 | TOMC7-63/3/C50 | TOMC7-63/3/D50 | ||
| 63A | TOMC7-63/3/B63 | TOMC7-63/3/C63 | TOMC7-63/3/D63 | ||
