Direct Factory Catalog

Circuit Breaker

Reliable AC & DC low-voltage circuit protection engineered in Wenzhou, China. Complying with IEC/EN standards for solar PV arrays, battery energy storage, and industrial distributions.

Industrial & Solar Circuit Breakers

Showing high-demand models designed for distribution panels, motor control, and photovoltaic backup systems.

10 Verified Models Shown
CE Marked TOM7Z 2P DC 1000V DC Solar Molded Case Circuit Breaker MCCB

TOM7Z 2P 1000V DC Solar Molded Case Circuit Breaker (MCCB)

1000V DC 2 Pole Solar PV Overload
$15.22 - $18.61 MOQ: 5 pcs
2P DC B Curve 500V DC Solar Molded Case Circuit Breaker MCCB

2P DC B-Curve 500V DC Solar MCCB Overload Switch Protector

500V DC B Curve Battery & PV
$15.21 - $18.61 MOQ: 5 pcs
Motor Starter Protector 3P Thermal Magnetic Motor Circuit Breaker MPCB

3P Thermal-Magnetic Manual Motor Starter Protector (MPCB)

3 Pole Thermal Magnetic Motor Short-Circuit
$8.84 MOQ: 5 pcs
1P 250V DC MCCB 300A 350A 400A Solar Molded Case Circuit Breaker

1P 250V DC High-Amperage MCCB 300A / 350A / 400A

250V DC Up to 400A Battery Bank Storage
$33.50 MOQ: 5 pcs
Heavy Duty 1P 250V DC Solar Battery Breaker

Heavy-Duty 1P 250V DC Industrial Solar Storage Breaker

DC MCCB High Capacity PV & Inverter Protection
$35.52 MOQ: 5 pcs
TOM7 Series 2P AC MCCB 400V Moulded Case Circuit Breaker

TOM7 Series 2P AC MCCB 400V 100A–250A Power Distribution

400V AC 100A–250A 2 Pole Main Switch
$10.31 - $18.22 MOQ: 5 pcs
CE Marked TO119G 1P 400V Miniature Circuit Breaker

TO119G 1P 400V DIN Rail Modular Miniature Circuit Breaker

400V AC 1 Pole Standard DIN Rail
$3.60 MOQ: 5 pcs
CE Marked WIFI Smart Circuit Breaker TOB1S 63A Short-circuit Protection

TOB1S 63A WiFi Smart Breaker with Over & Under Voltage Guard

220V AC 63A Prepayment Smart App Control
$48.76 - $67.08 MOQ: 5 pcs
Best Seller AC MCB TOB1-63H C Curve 230/400V Mini Circuit Breaker

TOB1-63H C-Curve AC MCB 1P–4P 3A–63A (230V / 400V)

230/400V~ 3–63A 50/60Hz High Breaking
$0.94 - $3.77 MOQ: 5 pcs
CE Marked 2P DC MCB 6000A 440V to 1000V Mini Circuit Breaker

2P DC MCB 440V–1000V Solar Mini Circuit Breaker 3A–63A

Up to 1000V DC 6kA Breaking Photovoltaic String
$2.48 - $4.29 MOQ: 5 pcs

Engineering & Manufacturing Excellence at Zhejiang TMB Electric Co., Ltd.

Located in Liushi, Wenzhou—the low-voltage electrical capital of China—Zhejiang TMB Electric Co., Ltd. manufactures standard-compliant circuit breakers backed by 24 years of specialized engineering. Our fully integrated facility leverages advanced mold tooling, automated contact welding, and rigorous calibration to ensure consistent trip performance under demanding real-world conditions.

Arc Extinction Chamber Design

Optimized 9-to-13 plate magnetic de-ion arc chute design extinguishes DC arcs rapidly under high system voltages up to 1000V DC.

Silver Alloy Contact Riveting

High-grade AgCdO / AgSnO2 contact materials offer outstanding electrical endurance, low contact resistance, and zero contact welding risk.

100% Factory Calibration

Every single miniature and molded case breaker undergoes precision thermal and instantaneous magnetic trip validation prior to export packing.

Looking for Custom Circuit Breakers or B2B Wholesale?

Provide your target specifications, breaking capacity, poles, or request custom OEM brand labeling with test datasheets.

Contact Us