Custom printed panels are non-returnable.
Please upload the image, photo, or logo you would like printed on the LED panel.
Recommended image size:• 600 × 600 pixels or higher resolutionAccepted file formats:• JPG• PNG• PDF
Availability: Low stock: 88 left
Couldn't load pickup availability
Once you receive your order confirmation email, your order will be processed within 2–3 business days (excluding weekends and public holidays).
Installation must be carried out by a qualified electrician.
Ensure power is switched off before installation.
Suitable for indoor use.
The Live DCM240C Double Pole DC MCB is a heavy-duty specialized direct current miniature circuit breaker engineered to provide reliable protection for very high-power DC electrical circuits in heavy industrial solar photovoltaic systems, utility-scale battery storage applications, and heavy industrial DC power distribution networks. Rated at 40 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. 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 high-power DC sources. With its robust construction and precision thermo-magnetic release, the DCM240C ensures equipment protection and operational safety for heavy industrial renewable energy and large-scale DC applications requiring substantial current capacity.
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 demanding DC installations including heavy industrial solar PV and utility-scale battery systems.
C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (200A to 400A), specifically calibrated for DC circuits with moderate inrush characteristics.
Very High-Capacity 40A DC Protection: Ideal for heavy industrial solar PV strings, utility-scale battery banks, large DC motor circuits, and heavy industrial DC power distribution.
Heavy Industrial Focus: Perfect for utility-scale solar farms, large-scale battery energy storage systems, industrial DC distribution boards, and heavy manufacturing DC 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 | DCM240C |
| Device Type | DC Miniature Circuit Breaker (MCB) |
| Pole Configuration | 2 Pole (2P) - Switches Positive + Negative |
| Current Rating (In) | 40 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 (25mm² recommended for 40A) |
| Mounting Type | DIN Rail (35mm) |
| Standards | BS IEC/EN 60898 (DC applications) |
1. What are the primary heavy industrial applications for the DCM240C 40A DC MCB?
Utility-scale solar farm combiner boxes, large-scale battery energy storage systems (BESS), heavy DC motor controls, industrial electrolysis equipment, data center DC distribution, and large manufacturing DC circuits.
2. How does 40A DC protection benefit utility-scale solar installations?
Ideal for protecting large industrial solar strings or combining multiple smaller strings, typically supporting systems up to approximately 1000-1200W per circuit at standard DC voltages, suitable for megawatt-scale solar farms.
3. What is the advantage of 40A rating over 32A for heavy industrial DC systems?
Provides 25% additional capacity for the most demanding industrial applications, essential for utility-scale solar farms, massive battery banks, or systems where 32A circuits would be insufficient.
4. Why is 6kA DC breaking capacity crucial for utility-scale applications?
Large-scale solar arrays and battery banks can generate extremely high fault currents under full load conditions. 6kA rating ensures the breaker can safely interrupt maximum fault current in critical installations.
5. What cable size is mandatory for 40A DC heavy industrial circuits?
10mm² copper conductor minimum. 16mm² strongly recommended for longer runs to minimize voltage drop and power loss in industrial settings. Note that terminals accept up to 16mm², so larger cables require external termination.
