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The Live DCM463C 4 Pole DC MCB is the highest-capacity specialized multi-pole direct current miniature circuit breaker in the DCM series, engineered to provide comprehensive protection for complex DC electrical circuits requiring simultaneous switching of multiple conductors at absolute maximum power levels. Rated at 63 Amps with a C-curve tripping characteristic, this 4-pole breaker represents the pinnacle of the DCM series, safeguarding DC circuits in applications such as ultra-scale industrial bipolar solar photovoltaic systems, massive DC distribution networks, and critical infrastructure telecommunications. It features a 6kA breaking capacity suitable for the most demanding DC installations. The C-curve characteristic (5-10x In) provides excellent protection for DC circuits while accommodating the characteristics of the highest-power DC sources. With its robust construction and precision thermo-magnetic release, the DCM463C ensures complete circuit isolation and equipment protection for the most complex ultra-scale renewable energy and massive DC applications requiring multi-pole switching at maximum current ratings.
Maximum-Capacity 4-Pole DC Protection: Highest rating in the DCM series for the most demanding DC applications requiring multi-pole switching.
Specialized DC Protection: Engineered specifically for direct current applications, ensuring reliable arc extinction and protection in DC circuits.
4-Pole Switching: Simultaneously protects and switches multiple conductors, ensuring complete circuit isolation in bipolar or multi-conductor DC systems.
6kA DC Breaking Capacity: Reliable fault current interruption for the most demanding DC installations including ultra-scale industrial bipolar solar PV and massive DC systems.
C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (315A to 630A), specifically calibrated for DC circuits with moderate inrush characteristics.
Maximum-Capacity 63A DC Protection: Ideal for ultra-scale industrial bipolar solar PV strings, massive DC distribution networks, critical telecom infrastructure, and complex high-power DC applications at maximum capacity.
Ultra-Scale Focus: Perfect for ultra-scale bipolar solar farms, positive/negative/earth switching, massive DC power distribution, and telecommunications hub networks at peak power levels.
Precision Thermo-Magnetic Release: Thermal bimetal strip for accurate overload protection and magnetic solenoid for instantaneous short-circuit response on all four 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 | DCM463C |
| Device Type | DC Miniature Circuit Breaker (MCB) |
| Pole Configuration | 4 Pole (4P) |
| Current Rating (In) | 63 Amperes (Maximum series rating) |
| Trip Curve Type | C Curve (5-10 × In) |
| Rated Voltage | DC (consult rating chart for bipolar configurations) |
| 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 (all 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 | 16mm² (35-50mm² requires external termination) |
| Mounting Type | DIN Rail (35mm) |
| Standards | BS IEC/EN 60898 (DC applications) |
1. What are the primary ultra-scale applications for the DCM463C 4-pole 63A DC MCB?
Ultra-scale bipolar solar farms, massive DC power distribution centers, telecommunications hub infrastructure, data center main DC distribution, and heavy industrial DC control systems requiring absolute maximum capacity.
2. How does 63A 4-pole protection benefit ultra-scale bipolar solar installations?
Ideal for protecting the absolute largest ultra-scale bipolar solar arrays, typically supporting systems up to approximately 1500-1700W per circuit, ensuring complete simultaneous disconnection of all poles for maximum system safety.
3. What is the advantage of 63A rating as the DCM series maximum for 4-pole applications?
Provides the absolute highest capacity available in the DCM series, essential for the largest-scale solar farms, most extensive telecom infrastructure, or applications where 50A circuits would be insufficient.
4. What are the critical cable considerations for 63A 4-pole DC circuits at maximum capacity?
16mm² copper conductor MINIMUM per pole - this matches the maximum terminal capacity. For any run over 10m, external termination with 35mm² or 50mm² is MANDATORY. All four conductors must be identical size.
5. Why is 63A the absolute maximum for 4-pole DC MCBs in the DCM series?
At 63A, 16mm² cable is at its absolute ampacity limit. Higher currents would cause dangerous overheating. For applications requiring >63A with 4-pole switching, DC MCCBs are the necessary solution.
