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The Live DCM416C 4 Pole DC MCB is a high-capacity specialized multi-pole direct current miniature circuit breaker engineered to provide comprehensive protection for complex DC electrical circuits requiring simultaneous switching of multiple conductors. Rated at 16 Amps with a C-curve tripping characteristic, this 4-pole breaker safeguards DC circuits in applications such as commercial bipolar solar photovoltaic systems, industrial DC distribution networks, and specialized telecommunications infrastructure. It features a 6kA breaking capacity suitable for demanding DC installations. The C-curve characteristic (5-10x In) provides excellent protection for DC circuits while accommodating the characteristics of higher-power DC sources. With its robust construction and precision thermo-magnetic release, the DCM416C ensures complete circuit isolation and equipment protection for complex renewable energy and industrial DC applications requiring multi-pole switching at higher current ratings.
Multi-Pole DC Protection: 4-pole configuration for complex DC systems requiring simultaneous switching of multiple conductors.
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 demanding DC installations including commercial bipolar solar PV and industrial DC systems.
C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (80A to 160A), specifically calibrated for DC circuits with moderate inrush characteristics.
High-Capacity 16A DC Protection: Ideal for commercial bipolar solar PV strings, industrial DC distribution, telecom infrastructure, and complex DC applications.
Bipolar System Focus: Perfect for commercial bipolar solar arrays, positive/negative/earth switching, industrial DC power distribution, and telecommunications networks.
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 | DCM416C |
| Device Type | DC Miniature Circuit Breaker (MCB) |
| Pole Configuration | 4 Pole (4P) |
| Current Rating (In) | 16 Amperes |
| 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 | Up to 16 mm² |
| Mounting Type | DIN Rail (35mm) |
| Standards | BS IEC/EN 60898 (DC applications) |
1. What are the primary commercial applications for the DCM416C 4-pole 16A DC MCB?
Commercial bipolar solar PV systems, industrial DC power distribution networks, telecommunications switching centers, battery banks for UPS systems, and manufacturing plant DC control systems.
2. How does 16A 4-pole protection benefit commercial bipolar solar installations?
Ideal for protecting larger commercial bipolar solar arrays, typically supporting systems up to approximately 400-500W per circuit, ensuring simultaneous disconnection of all poles including earth for complete safety.
3. What is the advantage of 16A rating over 10A for 4-pole DC applications?
Provides 60% more capacity for growing commercial systems, essential for larger bipolar solar arrays, expanded telecom infrastructure, or applications where 10A circuits would operate near their limits.
4. Why is 4-pole switching essential for industrial DC distribution?
Industrial DC systems often use complex configurations with multiple conductors. 4-pole switching ensures complete isolation during maintenance, protecting personnel and sensitive equipment from hazardous voltages.
5. What cable size is recommended for 16A 4-pole DC commercial circuits?
2.5mm² copper conductor minimum per pole. 4mm² recommended for longer runs to minimize voltage drop. All four conductors must be identical size and type for balanced protection.
