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Installation must be carried out by a qualified electrician.
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Suitable for indoor use.
The Live DCM206C Double Pole DC MCB is a specialized direct current miniature circuit breaker engineered to provide reliable protection for DC electrical circuits in solar photovoltaic systems, battery storage applications, and various DC power distribution networks. Rated at 6 Amps with a C-curve tripping characteristic, this 2-pole breaker safeguards both positive and negative conductors on DC systems up to appropriate voltage ratings at 50/60Hz frequency. It features a 6kA breaking capacity suitable for DC installations. The C-curve characteristic (5-10x In) provides excellent protection for DC circuits while accommodating the characteristics of DC power sources. With its robust construction and precision thermo-magnetic release, the DCM206C ensures equipment protection and operational safety for renewable energy and industrial DC applications.
Specialized DC Protection: Engineered specifically for direct current applications, ensuring reliable arc extinction and protection in DC circuits.
Double Pole Switching: Simultaneously protects and switches both positive and negative conductors, ensuring complete circuit isolation during fault conditions.
6kA DC Breaking Capacity: Reliable fault current interruption for standard DC installations including solar PV and battery systems.
C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (30A to 60A), specifically calibrated for DC circuits with moderate inrush characteristics.
Precision 6A DC Protection: Ideal for small solar PV strings, battery monitoring circuits, control systems, and low-power DC applications.
Renewable Energy Focus: Perfect for solar photovoltaic arrays, battery storage systems, DC distribution boards, and telecom power supplies.
Precision Thermo-Magnetic Release: Thermal bimetal strip for accurate overload protection and magnetic solenoid for instantaneous short-circuit response on both poles.
Superior Arc Extinction: Specialized DC arc quenching technology ensures safe interruption of direct current without sustained arcing.
Extended Operational Life: 8,000 electrical operations for long-term reliability.
Professional Installation: Standard 35mm DIN-rail mounting with IP20 finger-safe terminals.
| Specification | Details |
|---|---|
| Brand | Live |
| Series | DCM |
| Model Number | DCM206C |
| Device Type | DC Miniature Circuit Breaker (MCB) |
| Pole Configuration | 2 Pole (2P) - Switches Positive + Negative |
| Current Rating (In) | 6 Amperes |
| Trip Curve Type | C Curve (5-10 × In) |
| Rated Voltage | DC (consult rating chart) |
| Rated Breaking Capacity | 6kA (6000 Amps) DC |
| Insulation Rating (Ui) | 500 Volts |
| Impulse Withstand (Uimp) | 4000 Volts (1.2/50 µs) |
| Dielectric Test Voltage | 2kV for 60 seconds |
| Protection Mechanism | Thermo-magnetic (both poles) |
| Operating Temperature | -5°C to +40°C (daily average ≤35°C) |
| Calibration Reference | 30°C |
| Storage Temperature | -25°C to +70°C |
| Electrical Lifespan | 8,000 cycles |
| Protection Class | IP20 |
| Terminal Capacity | Up to 16 mm² |
| Mounting Type | DIN Rail (35mm) |
| Standards | BS IEC/EN 60898 (DC applications) |
1. What are the primary applications for the DCM206C 6A DC MCB?
Solar photovoltaic string protection (small panels), battery management systems, DC control circuits, telecommunications power supplies, LED lighting systems, and low-power DC distribution boards.
2. Why is specialized DC protection important for solar applications?
DC arcs are more difficult to extinguish than AC arcs due to no natural zero-crossing point. Specialized DC MCBs like the DCM206C incorporate enhanced arc quenching technology for safe DC interruption.
3. Can this DC MCB be used for both positive and negative switching?
Yes, the 2-pole configuration simultaneously switches both positive and negative conductors, providing complete isolation essential for DC systems and safety during maintenance.
4. What is the typical solar panel configuration for 6A DC protection?
Ideal for protecting small solar strings of 2-4 panels (depending on panel wattage), typically supporting systems up to approximately 150-200W per string at standard DC voltages.
5. What cable size is recommended for 6A DC circuits?
1.5mm² copper conductor minimum. 2.5mm² recommended for mechanical robustness. Both positive and negative conductors must be same size. Suitable for DC applications with proper voltage rating.
