Circuit breakers 3A

3A MCB for Low-Current Circuits in Industrial and Commercial Panels

The 3a mcb (miniature circuit breaker) is engineered to protect light-load circuits where precise cut-off matters. Whether you're powering signal repeaters, pilot lamps, or automation logic, the 3a circuit breaker ensures selective disconnection without tripping upstream systems.

At Bank of Lamps, we distribute certified mcb 3a models from leading EU manufacturers, with full documentation and logistics across the EU.

Where to Use a 3A Circuit Breaker

• Automation Logic — for PLC I/O feeds or relay coils
   
• Instrumentation Circuits — including sensors, transducers, and analog converters
   
• Emergency Lighting — powering standalone LED markers with limited draw
   
• Fire Alarm & Security — isolating addressable zones or low-power loops
   
• Laboratory and Test Benches — for sensitive single-channel setups
   

In these applications, 3a mcb units balance sensitivity and selectivity — avoiding nuisance tripping in multi-layered systems.

Brands and Technical Variants in Stock

Our 3A miniature breakers come from trusted suppliers, available for immediate dispatch:

• Schneider Electric Acti9 – iC60N and iC60H, B- and C-curve, 6/10kA
   
• Eaton FAZ Series – FAZ-B3 and FAZ-C3, terminal capacity up to 10 mm²
   
• ABB S200 – S201-B3 and S201-C3, type-tested for industrial panels
   
• Hager MBN/C – slim DIN rail design with front-facing terminals
   
• Legrand DX³ – ergonomic toggles and indicator windows for quick diagnostics

All products comply with IEC/EN 60898-1 or 60947-2, ensuring suitability for both residential and industrial boards.

Specs and Setup Notes

• Voltage rating: 230/400V AC (some models also cover 48V DC)
   
• Breaking capacity: typically 6 kA (select variants with 10 kA)
   
• Mounting: 35 mm DIN rail, tool-free replacement possible
   
• Tripping curve: B (ultra-sensitive) or C (standard control loads)
   
• Terminal torque: ~2 Nm, max wire 16 mm² stranded Cu
   

We supply optional auxiliary contacts, busbars, and accessories for panel-ready integration.

Wholesale MCB 3A Supply – EU-Wide Distribution

Bank of Lamps supports installers and B2B contractors with:

• Direct access to 3a circuit breaker stock from 5+ EU-certified brands
   
• Minimum orders from 20 pcs, up to full pallet loads (mixable by type)
   
• Shipments from our 5,100 m² bonded warehouse, EU paperwork-ready
   
• 96+ brands under contract — matched logistics and product tracking
   
• Dedicated B2B focus — no marketplace reselling, no stock gaps
   

We’ve been serving the professional electrical market since 1997 — focused on bulk supply, phased delivery, and real-world integration.