HomeProductsMCCBDC MCCBDC12~1500V 63~320A 2P/3P Molded Case Circuit Breaker MCCB

DC12~1500V 63~320A 2P/3P Molded Case Circuit Breaker MCCB

1. MCCB Specifically Designed for PV and Battery Applications
2P DC MCCBs provide reliable overload, short-circuit protection, and isolation functions for PV systems with rated DC voltages of 12-1500V and rated currents of 400A/450A/500A/630A/700A/800A, featuring a breaking capacity up to 20kA
2. Flame-Retardant Housing with Silver Contacts
The resin enclosure offers high insulation and exceptional flame-retardant properties. Internal conductive components feature silver contacts for low resistance and minimal heat generation
3. Thermal-Magnetic Trip and Non-Polar Design
Precision thermal-magnetic trip technology combined with enhanced DC arc extinction capability ensures safe and reliable disconnection at combiner boxes and inverter inputs. Non-polar wiring and space-saving design enable seamless integration with PV modules
4. DC MCCB Applications
CNLONQ DC molded case circuit breakers serve as essential protective components in PV systems, widely deployed at critical junctions including PV strings, combiner boxes, inverter inputs, and battery energy storage systems
5. EU Certification and Professional MCCB Manufacturer
CNLONQ provides R&D, production, and quality inspection for a full range of molded case circuit breakers. MCCBs are CE, ISO, and GTS certified, compliant with IEC 60947-2 standards
Free DC/AC Design Solution
Product Description & Video
Parameters
Product Parameters
Technical Data
Model LQM3-800PV 2P
Type Moulded Case Circuit Breaker (MCCB)
Pole 2P
Rated voltage  Ue DC1500V AC 690V
Rated Insulation Voltage Ui 1500V
Rated Current In 400A 450A 500A 630A 700A 800A
Frame Degree Rated Current 800A
Rated Impulse Withstand Voltage Uimp 12kV
Breaking Capacity Icu 20kA
Operating BreakingCapacity Ics 20kA
Trip Type Thermal-magnetic
Standard IEC60947-2/GB14048.2
Mechanical Life (times) 5000
Electrical Life (times) 1000
Housing Material Bakelite
Conductor Material Copper
Quality Certificate CE、GTS、ISO9001
Operating Temperature -35℃ to 70℃
Humidity ≤95%
Altitude ≤2000m
Installation Fixed,plug-in
Accessory Function alarm contacts, shunt release, undervoltage release
Size and Weight
Product Size  L*W*H(mm) 250*124*165
Product Weight(kg) 5.345
Individual package Size L*W*H(mm) 258*134*182
Individual package Weight(kg) 5.515
Packaging Details 4 Pcs per carton
Outer box Size  L*W*H(mm) 395*295*280
Outer box Weight(kg) 23.06

Features

Genuine Materials
Genuine Materials
Housing made of flame-retardant insulating PET. Silver contacts, tin-plated copper terminals
Secure Wiring
Secure Wiring
Thickened tinned copper terminals ensure low resistance and reliable wiring
Circuit Protection
Circuit Protection
Provides overload and short-circuit protection with isolation circuit functionality Breaking capacity: Icu=20kA
Flame Retardant
Flame Retardant
UL94V-0 rated, self-extinguishing when removed from flame
Stable Operation
Stable Operation
perates reliably from -35°C to +70°C, dustproof and corrosion-resistant
Non-polarized
Non-polarized
No need to distinguish between positive and negative terminals, accommodating reverse polarity scenarios
Contact CNLONQ for free customization
Contact CNLONQ for free customization
Our dedicated team of engineers will design a customized solar solution tailored to your needs at no charge

Why does your PV system need CNLONQ molded case circuit breakers?

A PV system needs a specialized MCCB like CNLONQ to safely interrupt high-voltage DC power, which is far more hazardous than AC, by effectively quenching dangerous electrical arcs. It provides critical protection for system components against overloads and short circuits, ensures reliable isolation for maintenance, and guarantees compliance with international safety standards.

 

Certifications
ISO 9001
ISO 9001
MCCB CE
MCCB CE
MCCB GTS
MCCB GTS
RoHS
RoHS
Provide a complete PV off-grid and grid-connected protection system
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HomeProductsMCCBDC MCCBDC12~1500V 63~320A 2P/3P Molded Case Circuit Breaker MCCB
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