Siemens SIRIUS Innovation 3-Pole Contactor, 4kW, 9A - 3RT2 Series - 3RT2016-1AP01 This robust contactor from Siemens' SIRIUS Innovation range provides a simple switching and protection solution for high-power loads in industrial environments. It works by making or breaking a power circuit, so you can use it as a motor starter. Thanks to thermoplastic housing, this is a durable and impact-resistant choice that won't break under pressure. With a wide operating temperature range of between -25°C and +60°C, you can rely on the unit to work effectively in harsh environments. It comes complete with a 10A fuse to prevent electric shock from short circuits. • Power rating of 4kW makes it suitable for heavy-duty industrial applications
• 6kV surge rating to handle sudden voltage spikes and ensure electrical safety
• Standard snap-on DIN rail mounting saves on installation time
• IP20 (ingress protection) rating for resistance to dust and objects larger than 12mm in size What's the difference between a contactor and a relay? The main difference between a contactor and a relay is that a contactor is typically intended for 3-phase circuits while a relay is used with single-phase circuits.