Siemens 3RV1041-4JA10 Motor Starter Protector

Siemens 3RV1041-4JA10 is a Sirius 3RV1 motor starter protector, a compact three‑pole circuit‑breaker style device for direct motor protection in control panels. Sized S3, it provides thermal overload protection (Class 10) and magnetic short‑circuit protection with an adjustable current setting of 45–63 A to match the motor’s full‑load amps. The unit is rated for up to 690 VAC and carries a short‑circuit current rating of 65 kA at 480 VAC, making it suitable for small‑to‑mid‑size motor applications. It uses screw terminals for wiring and is designed for DIN rail mounting; front IP20 protection keeps the terminals guarded in typical panel environments. The 3RV1041‑4JA10 supports optional extensions including auxiliary contacts and motor drive options, and offers phase disturbance recognition for enhanced fault detection. An impulse withstand rating of 6 kV helps tolerate transient spikes, and the device features a rotary ON/OFF handle with lockout and visible trip indication when used as part of the broader 3RV1 family. This motor protector integrates with Siemens Sirius control gear to deliver a compact, field‑serviceable solution for protecting motors in a range of industrial installations.