SKU: KC3E/350A
ONESTO DIN RAIL 50A 3KA 3P CIRCUIT BREAKER
ONESTO DIN RAIL 50A 3KA 3P CIRCUIT BREAKER
In stock
Description
Description
The Onesto 50 A 3P 3 kA Mini Circuit Breaker is a heavy‑duty, triple‑pole protective device designed for three‑phase or multi‑phase electrical systems requiring robust current handling and reliable fault protection. With a 50 A rating per pole and a 3 kA breaking capacity, this breaker ensures that overloads or short‑circuit events are safely interrupted — protecting wiring, equipment and connected devices from potential damage.
Its 3‑pole configuration disconnects all three live conductors at once, providing complete circuit isolation — an essential safety feature when dealing with three‑phase supplies or multi‑phase loads. The thermal‑magnetic tripping mechanism provides dependable protection against overloads and faults, while the C‑curve characteristic gives it the flexibility to handle both resistive and inductive loads (such as motors or heavy machinery) without nuisance trips.
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Type: Miniature Circuit Breaker (MCB), Triple‑Pole (3P)
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Rated Current (In): 50 Amps (per pole) — ideal for heavier 3‑phase circuits or multi‑phase loads requiring 50 A protection per phase.
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Number of Poles / Configuration: 3‑pole — disconnects all three live conductors simultaneously, providing full three‑phase isolation.
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Breaking Capacity (Icu / Ics): 3 kA — safely interrupts overloads or short‑circuit fault currents up to 3000 A.
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Rated Operational Voltage (Ue): 415 V AC (standard for 3‑phase supply) — suitable for residential, commercial, or light‑industrial three‑phase networks.
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Tripping Mechanism: Thermal‑magnetic (time‑current protection) — provides overload and short‑circuit protection.
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Tripping Curve / Characteristic: Commonly “C‑curve” (or similar, depending on batch) — good balance between sensitivity to overloads and tolerance for inrush currents (e.g. motors, inductive loads).
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Mounting / Form Factor: DIN‑rail mount (standard 35 mm rail) — easy installation into standard 3‑phase distribution boards or breaker panels.
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Protection Provided: Overload protection & short‑circuit protection — safeguards wiring, wiring infrastructure, and connected equipment against faults.
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Typical Applications: 3‑phase circuits in residential, commercial, or light‑industrial settings; power supply lines for motors, machinery, heavy‑duty outlets, sub‑panels or general 3‑phase equipment requiring 50 A per phase protection.
Dimensions
Dimensions
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- H:
- Cord:
- Ceiling Cup:
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