AC & DC Breakers in Lahore Pakistan A DC breaker (Direct Current circuit breaker) is a crucial safety switch for DC electrical systems (like solar, batteries, EVs) that automatically cuts power during overloads or short circuits, protecting equipment; it’s specifically designed to handle the continuous, unidirectional flow of DC, which creates a more challenging, persistent arc than AC, requiring robust arc-quenching features, unlike AC breakers which work with current that naturally drops to zero, making DC breakers vital for safety in renewable energy and DC applications. Key Functions & Characteristics:
Overcurrent Protection: Trips (opens) to stop dangerous current flow from faults.
Arc Quenching: Features specialized mechanisms (chutes, magnetic fields) to extinguish the strong, continuous DC arc that forms when contacts separate.
Polarized/Non-Polarized: Some require specific connection (polarized), while others can be wired in either direction (non-polarized).
Duty Cycle: Designed for emergency use; repeated tripping causes wear, leading to eventual failure, so they aren’t for regular on/off switching.
Application Specific: Essential for solar panels, battery banks (lithium, lead-acid), electric vehicles, and other DC power systems.
Why it’s Different from AC Breakers:
Continuous Current: DC flows in one direction; AC periodically reverses, naturally passing through zero volts, making AC breakers simpler to interrupt.
Arc Energy: The uninterrupted DC arc is more powerful and harder to extinguish, requiring bigger, more robust DC breakers with advanced arc suppression.
Not Interchangeable: Using an AC breaker in a DC system is unsafe as it can fail to interrupt the DC fault current. Explore a wide range of AC and DC circuit breakers, MCCBs, and smart energy meters at. Perfect for residential, commercial, and industrial applications, our A DC Breaker is an essential safety device used to protect electrical circuits from overcurrent conditions, including short circuits and overloads DC Breaker – Taxnele 2P Dc Circuit Breaker 1000V 125Amp. ₨2,700.00 Original price was: ₨2,700.00. ₨2,500.00 Current price is: ₨2,500.00. Quick view · Add to wishlist. DC Breaker – CNC Electric Pakistan Protect your DC circuits from overloads and short circuits with high-quality DC Breakers from CNCelectric.pk. Ideal for solar power systems, industrial DC