LMBD-40P DC MCB 1500V | 6–40A PV & Battery Protection

LMBD-40P DC MCB 1500V | 6–40A PV & Battery Protection

Rated current:6、10、16、20、25、32、40
Poles: 1P、2P、3P、4P
Rated voltage : 1P(500VDC)、2P(1000VDC)、3P(1500VDC)、4P(1500VDC)
Insulation volage: 1500V DC
Rated breaking capacity: 1.5kA
Thermo-magnetic release characteristic: B、C、D
Contact position degree: IP20
Standard: IEC 60947-2

📚 LMBD-40P DC MCB 1500V Manual

Rated current:6、10、16、20、25、32、40
Poles: 1P、2P、3P、4P
Rated voltage : 1P(500VDC)、2P(1000VDC)、3P(1500VDC)、4P(1500VDC)
Insulation volage: 1500V DC
Rated breaking capacity: 1.5kA
Thermo-magnetic release characteristic: B、C、D
Contact position degree: IP20
Standard: IEC 60947-2

📚 LMBD-40P DC MCB 1500V Manual

1. Product Overview

Our DC MCB 1500V is a high‑reliability miniature circuit breaker engineered specifically for 1500V DC applications including solar photovoltaic (PV) arrays, energy storage systems (ESS), EV charging, and industrial DC distribution. It provides critical overload and short‑circuit protection while ensuring safe isolation and durable performance in harsh environments.

2. Key Features

  • Rated Voltage: DC 1500V (suitable for 1500V DC PV/ESS)
  • Rated Current: 6A,10A,16A, 20A, 25A, 32A, 40A
  • Pole Configuration: 2P / 4P
  • Trip Curve: B / C (for DC load & PV protection)
  • Breaking Capacity: 6kA (high DC fault current interruption)
  • Rated Impulse Withstand Voltage (Uimp): 6kV
  • Standards: IEC/EN 60947-2, RoHS compliant
  • Operating Temperature: -25°C ~ +70°C
  • Housing Material: V0 flame‑retardant thermoplastic, anti‑aging & impact‑resistant
  • Arc Extinction: Optimized DC arc quenching for safe 1500V DC interruption

3. Technical Specifications

Standard: IEC 60947-2 GB/T14048.2
Pole 1P 2P 3P 4P
Rated voltage 500V DC 1000V DC 1500V DC 1500V DC
Rated current 6A、10A、16A、20A、25A、32A、40A、
Rated insulation voltage 1000V 1500V
Rated impulse withstand voltage 8kV
Tripping characteristic B/C/D
Electric life 1000 times
Mechanical life 15000 times
Ingress protection IP40;Terminal IP20
Operating temperature -30°C ~ +70°C
Relative humidity ≤95%

4. Wiring diagram

5. Tripping characteristics

dc mcb 1500V B curvedc mcb 1500V C curvedc mcb 1500V D curve

6. Installing Dimensions

dc mcb 1500V sizedc mcb 1500V sizedc mcb 1500V size

7. Applications

  • Solar PV Systems: 1500V DC solar farms & rooftop PV
  • Energy Storage Systems (ESS): Battery banks & UPS
  • EV Charging: DC fast charging stations
  • Industrial DC Distribution: 1500V DC power networks
  • Data Centers: High‑voltage DC power distribution

8. Why Choose Our DC MCB

1500V DC Certified: Designed and tested for 1500V DC systems, compliant with IEC60947-2.

Compact & DIN‑Rail Mount: Space‑saving design for easy installation in PV combiner boxes and control panels.

Reliable DC Protection: Specialized arc quenching ensures safe interruption of DC faults (no zero crossing).

Wide Temperature Range: Stable performance from -25°C to +70°C, ideal for outdoor solar installations.

Global Compliance: CE & RoHS certified for worldwide use.

9. Installation & Safety Notes

  • Install only on DC circuits; do not use for AC.
  • Observe polarity (+/–) during wiring.
  • Use appropriate wire gauge per rated current.
  • For 1500V DC systems, ensure adequate insulation and clearance.

1. Product Overview

Our DC MCB 1500V is a high‑reliability miniature circuit breaker engineered specifically for 1500V DC applications including solar photovoltaic (PV) arrays, energy storage systems (ESS), EV charging, and industrial DC distribution. It provides critical overload and short‑circuit protection while ensuring safe isolation and durable performance in harsh environments.

2. Key Features

  • Rated Voltage: DC 1500V (suitable for 1500V DC PV/ESS)
  • Rated Current: 6A,10A,16A, 20A, 25A, 32A, 40A
  • Pole Configuration: 2P / 4P
  • Trip Curve: B / C (for DC load & PV protection)
  • Breaking Capacity: 6kA (high DC fault current interruption)
  • Rated Impulse Withstand Voltage (Uimp): 6kV
  • Standards: IEC/EN 60947-2, RoHS compliant
  • Operating Temperature: -25°C ~ +70°C
  • Housing Material: V0 flame‑retardant thermoplastic, anti‑aging & impact‑resistant
  • Arc Extinction: Optimized DC arc quenching for safe 1500V DC interruption

3. Technical Specifications

Standard: IEC 60947-2 GB/T14048.2
Pole 1P 2P 3P 4P
Rated voltage 500V DC 1000V DC 1500V DC 1500V DC
Rated current 6A、10A、16A、20A、25A、32A、40A、
Rated insulation voltage 1000V 1500V
Rated impulse withstand voltage 8kV
Tripping characteristic B/C/D
Electric life 1000 times
Mechanical life 15000 times
Ingress protection IP40;Terminal IP20
Operating temperature -30°C ~ +70°C
Relative humidity ≤95%

4. Wiring diagram

5. Tripping characteristics

dc mcb 1500V B curvedc mcb 1500V C curvedc mcb 1500V D curve

6. Installing Dimensions

dc mcb 1500V sizedc mcb 1500V sizedc mcb 1500V size

7. Applications

  • Solar PV Systems: 1500V DC solar farms & rooftop PV
  • Energy Storage Systems (ESS): Battery banks & UPS
  • EV Charging: DC fast charging stations
  • Industrial DC Distribution: 1500V DC power networks
  • Data Centers: High‑voltage DC power distribution

8. Why Choose Our DC MCB

1500V DC Certified: Designed and tested for 1500V DC systems, compliant with IEC60947-2.

Compact & DIN‑Rail Mount: Space‑saving design for easy installation in PV combiner boxes and control panels.

Reliable DC Protection: Specialized arc quenching ensures safe interruption of DC faults (no zero crossing).

Wide Temperature Range: Stable performance from -25°C to +70°C, ideal for outdoor solar installations.

Global Compliance: CE & RoHS certified for worldwide use.

9. Installation & Safety Notes

  • Install only on DC circuits; do not use for AC.
  • Observe polarity (+/–) during wiring.
  • Use appropriate wire gauge per rated current.
  • For 1500V DC systems, ensure adequate insulation and clearance.

Data Download

LVMA low voltage selection manual

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