An EPS 4-Pole MCB is a miniature circuit breaker that simultaneously protects four conductors — typically three phases plus neutral — and is widely used in three-phase power distribution in residential, commercial, and light industrial electrical panels. It provides overload and short-circuit protection with a combination of thermal (for overload) and magnetic (for short circuit) trip mechanisms built in. These breakers are usually DIN-rail mounted and available in various current ratings to suit different load requirements.
EPS MCBs support Type B or Type C trip curves, allowing selection based on expected load characteristics (Type B for lighting and general small loads, Type C for mixed loads with moderate inrush currents). Models are designed to withstand a 6 kA fault level at 240/415 V AC, making them suitable for typical electrical installations.
Four-Pole Protection: Simultaneously disconnects all phases + neutral for safe isolation and protection
Thermal + Magnetic Trip: Protects against sustained overloads and sudden short circuits.
Multiple Ratings: Choose appropriate current rating to match load demands (e.g., 16 A for small circuits vs 63 A for larger feeds).
DIN-Rail Mount: Standard installation in electrical distribution boards.
Protection of three-phase motors and machinery
Circuit protection in three-phase power panels
Feed protection for commercial and industrial distribution
Main switch or sub-circuit protection in large residential electrical boards
Tip: When selecting a 4-Pole MCB, match the current rating (e.g., 20 A, 32 A, 40 A) and trip curve to the type of load and wiring protection requirement. For example, heavier inductive loads might benefit from a Type C curve to avoid nuisance tripping.
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