ABB S201P-K4NA MCB – 1P+N – K Curve – 4A

ABB S201P-K4NA Miniature Circuit Breaker – 1P+N, 4 A, K Curve

The ABB S201P-K4NA (ABB order code 2CDS281103R0337) is a 1P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P range. It has one protected pole for the phase conductor and a switched neutral, so phase and neutral are disconnected together when the breaker trips or is switched off.

With a 4 A rated current and a K tripping characteristic (instantaneous trip at 8 to 14 × In), it is suited to motors and transformers, combining high inrush tolerance with sensitive overload protection. Thermal tripping protects against overload and electromagnetic tripping against short circuit.

Key Features

• ABB System pro M compact S200P series.
• 1P+N: one protected pole (phase) plus switched neutral.
• 4 A rated current.
• K curve tripping characteristic (8 to 14 × In).
• 230 V AC rated operational voltage.
• Thermal overload and electromagnetic short-circuit protection.
• 35 mm DIN rail mounting.
• S200P range rated up to 25 kA breaking capacity to IEC/EN 60947-2 (value depends on rating).
• Complies with IEC/EN 60898-1 and IEC/EN 60947-2.

Typical Applications

• Single-phase final circuits where the neutral must be switched with the phase.
• Motor circuits, transformers and inductive loads.
• Distribution boards and control panels.