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A Square Solutions

Circuit Protection

MCBs, RCCBs, fuses and surge protection

Circuit Protection


At A Square Solutions, we offer comprehensive, high-performance circuit protection solutions designed to safeguard all tiers of electrical infrastructure - from residential consumer units to complex industrial distribution systems. Engineered for maximum reliability, safety, and compliance, our product lineup ensures uninterrupted power continuity and robust equipment protection.

1. Primary Power & Circuit Interruption
Heavy-duty and compact interrupters designed to handle overload and short-circuit currents safely.
- Vacuum Circuit Breakers (VCB) & Air Circuit Breakers (ACB): Robust protection for high-current industrial and main distribution networks.
- Miniature Circuit Breakers (MCB): Reliable overcurrent and short-circuit protection for commercial and domestic applications.

2. Residual Current & Life Safety
Advanced shock and leakage protection to safeguard personnel and prevent electrical fires.
- Residual Current Circuit Breakers (RCCB): Dedicated detection and interruption of earth leakage currents.
- RCBO Combined Units: Integrated, space-saving protection combining the benefits of both an MCB and an RCCB in a single device.

3. Enclosures & Traditional Fuse Gear
Sturdy power distribution hubs and traditional, time-tested fault isolation components.
- Consumer Units & Distribution Boards: Sleek, compliant, and easy-to-install distribution boards for modern residential and commercial settings.
- Fuse Gear & Switch Fuses: Heavy-duty isolation switches designed for safe load-break operations.
- HRC Fuses & Fuse Bases: High Rupturing Capacity fuses providing high-speed clearing of severe short-circuit faults.

4. Surge & Voltage Monitoring Systems
Proactive safeguarding against grid instability, atmospheric disturbances, and phase anomalies.
- Surge Protection Devices (SPD): Defense against transient voltage spikes and lightning surges.
- Overvoltage Protection: Continuous voltage monitoring to shield sensitive electronics from prolonged overvoltage conditions.
- Phase Failure Relays: Critical monitoring to prevent motor burnout caused by phase loss or asymmetry.
- Earth Leakage Relays: Precision monitoring for early detection of insulation degradation in industrial machinery.

Engineered for Reliability
All of our circuit protection components strictly comply with international safety standards, ensuring your assets, operations, and personnel remain fully protected under all load conditions.


  • Miniature Circuit Breakers (MCB)
  • Residual Current Circuit Breakers (RCCB)
  • RCBO Combined Units
  • Consumer Units & Boards
  • Fuse Gear & Switch Fuses
  • HRC Fuses & Fuse Bases
  • Surge Protection Devices (SPD)
  • Overvoltage Protection
  • Phase Failure Relays
  • Earth Leakage Relays

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