3RT2016-2AP02

What is this contactor typically used for?

This power contactor is typically used for switching three-phase motors and other industrial loads in control panels. It is designed for AC motor duties and is commonly selected for compact starter assemblies where reliable switching and straightforward panel mounting are important.

What are the main switching ratings?

The unit is rated at 4 kW at 400 V in AC-3 duty, with an AC-3 operating current of 9 A at 400 V. It is also rated at 7.7 A at 500 V and 6.7 A at 690 V, with a maximum AC-3 operating voltage of 690 V.

What coil voltage does it require?

This version uses a 230 V AC coil at 50/60 Hz. The Siemens 3RT2016-2AP02 is therefore well suited to panels built around a 230 V AC control supply.

How many poles and auxiliary contacts does it have?

It has 3 main poles with 3 normally open main contacts, plus 1 normally closed auxiliary contact. This makes it suitable for standard motor switching tasks where a basic auxiliary indication or interlock contact is required.

What type of terminals are fitted?

The contactor uses spring-loaded terminals for the main circuit and for the auxiliary/control circuit. This terminal style can help speed up installation and provides a compact connection arrangement inside the panel.

What cable sizes can be connected?

For the main contacts, it accepts 2 x 0.5 to 4 mm² solid or stranded conductors, and 2 x 0.5 to 2.5 mm² finely stranded conductors. For the auxiliary contacts, it accepts 2 x 0.5 to 4 mm² solid or stranded conductors, and 2 x 0.5 to 2.5 mm² finely stranded conductors. AWG 20 to 12 conductors can also be used.

How is it mounted in a control panel?

It is designed for screw mounting or snap-on mounting onto a 35 mm DIN rail. That makes it a practical choice for compact industrial enclosures where quick installation and neat panel layout are important.

What are the physical dimensions?

The contactor measures approximately 70 mm high, 45 mm wide and 73 mm deep. Its compact S00 frame size helps when panel space is limited.

What environmental and protection ratings should be considered?

The front and terminal areas are rated IP20, and the unit is finger-safe on the front. The normal operating temperature range is -25 to +60 °C, storage temperature range is -55 to +80 °C, and the maximum installation altitude is 2,000 metres.

Is it suitable for motor starting applications?

Yes. It is intended for motor switching duties and is commonly used in AC-3 applications. Typical motor power figures include 2.2 kW at 230 V, 4 kW at 400 V and 5.5 kW at 690 V in AC-3 duty.

What is the typical mechanical life?

The contactor has a typical mechanical service life of 30,000,000 operating cycles. This makes it a strong option for applications with frequent switching over an extended service period.

What short-circuit protection is usually paired with it?

For the main circuit, commonly referenced fuse values are 35 A for coordination type 1 and 20 A for coordination type 2, depending on the protection approach used in the installation. For the auxiliary circuit, a 10 A fuse is typically specified.