DC Miniature Circuit Breaker (DC MCB)

Engineered by Zhejiang TMB Electric Co., Ltd. for solar photovoltaic strings, energy storage battery banks, and direct current industrial control. Precision magnetic arc extinguishing up to 1000V DC and 6kA breaking capacity.

Factory Direct Supply

Heavy-Duty DC Protection Devices

Certified low-voltage DC miniature circuit breakers providing rapid overcurrent and short-circuit protection. Designed to handle severe DC arc characteristics with permanent magnetic field blowout chutes.

2P DC MCB 6000A 440V Mini Circuit Breaker

2P DC MCB 6000A 440V Mini Circuit Breaker 3A–63A

2 Pole 440V DC 6kA 3A–63A
$2.48 MOQ: 5 pcs
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2P 1000V DC MCB 80A 100A 125A Circuit Breaker

2P 1000V DC MCB 80A 100A 125A Battery Main Switch

2 Pole 1000V DC 80A–125A High Amp
$4.29 MOQ: 5 pcs
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1P 2P DC MCB 6KA 500V Mini Circuit Breaker

1P/2P DC MCB 6kA 500V Breaker 3A–63A Y Connection

1P / 2P 500V DC 6kA C Curve
$1.26 - $2.51 MOQ: 5 pcs
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DC MCB 6KA 1P 500V Mini Circuit Breaker

DC MCB 6kA 1P 500V Mini Breaker 3A–63A Y Connection

1 Pole 500V DC 3A–63A PV DC
$1.03 - $1.14 MOQ: 5 pcs
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1P 80A 100A 125A DC MCB 250V Circuit Breaker

1P 80A 100A 125A DC MCB 250V Breaker for PV Systems

1 Pole 250V DC 80A–125A C Curve
$2.77 MOQ: 5 pcs
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2P DC MCB 600V 125A Battery Main Switch

2P DC MCB 600V 80A 100A 125A Battery Main Switch

2 Pole 600V DC 80A–125A Storage ESS
$4.22 - $5.54 MOQ: 5 pcs
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DC MCB 1P 125V Circuit Breaker 6000A DIN Rail

DC MCB 1P 125V Circuit Breaker 6000A DIN Rail 3A–63A

1 Pole 125V DC 6kA 35mm DIN
$1.24 - $1.30 MOQ: 5 pcs
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2P DC MCB 1000V Solar Mini Circuit Breaker

2P DC MCB 1000V Solar Mini Breaker 3A–63A for PV System

2 Pole 1000V DC 6kA IEC 60947-2
$2.28 - $2.55 MOQ: 5 pcs
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4P DC MCB 1000V Direct Current Mini Circuit Breaker

4P DC MCB 1000V Direct Current Mini Breaker 3A–63A

4 Pole 1000V DC Multi-String High Voltage
$5.06 MOQ: 5 pcs
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Engineering Specifications

DC MCB Technical Characteristics & Comparison

Manufactured by Zhejiang TMB Electric Co., Ltd. strictly conforming to IEC/EN 60947-2 and IEC/EN 60898-2 international standards for non-polarized and polarized DC circuits.

Product Series Poles (P) Rated Voltage (Ue) Rated Current (In) Breaking Capacity (Icu) Trip Curve Standard Compliance
Standard Solar MCB 1P, 2P 125V / 250V / 500V DC 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A 6,000A (6kA) C Curve (7–10 In) IEC 60898-2, CE
High Voltage PV MCB 2P, 4P 440V / 800V / 1000V DC 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A 6,000A (6kA) C Curve / B Curve IEC 60947-2, CE
Heavy Amp Battery MCB 1P, 2P 250V / 600V / 1000V DC 80A, 100A, 125A 10,000A (10kA) C Curve IEC 60947-2, CE

Magnetic Arc Blowout

Equipped with permanent magnetic elements and enhanced splitter plates to force DC arcs into the extinguishing chamber instantly.

V0 Flame-Retardant

Engineered using virgin PA66 housing material compliant with UL94-V0 high temperature, anti-tracking, and anti-combustion criteria.

Silver Alloy Contacts

Thick welded AgCdO / AgSnO2 contact tips eliminate welding under overload and ensure minimal contact resistance and prolonged electrical life.

Flexible Integration

Standard 35mm DIN rail mounting designed to fit perfectly into combiner boxes, industrial switchboards, and telecom battery cabinets.

Source DC MCB Directly From the Factory

Zhejiang TMB Electric Co., Ltd. supports bulk distribution orders, customized trip configurations, and complete private labeling. Contact our technical sales engineering team today.

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