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Siemens 3RT2016-1KB41 Power Contactor

Siemens 3RT2016-1KB41 3-pole power contactor with 1 NO aux.

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ManufacturerSiemens

Part number3RT2016-1KB41

Type Power Contactor

Manufacturer Siemens

Part Number 3RT2016-1KB41

AC-3e/AC-3 Rating 9 A

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AC-3e/AC-3 rated 9A switching current 24V DC coil Integrated suppressor diode 1 NO auxiliary contact Suitable for PLC outputs No add-on auxiliary switches

Product description

The Siemens 3RT2016-1KB41 is a 3-pole power contactor for AC-3e/AC-3 applications, rated for 9A and 4kW at 400V. It operates with a 24V DC coil (0.7-1.25* Uc) and features an integrated suppressor diode for coil protection. This S00-sized contactor includes one normally open (NO) auxiliary contact, uses screw terminals, and is suitable for PLC outputs, with the limitation that no auxiliary switch can be added.

This contactor is designed for reliable motor control and power switching in automation systems across various industries like manufacturing, material handling, and HVAC. Its direct PLC compatibility simplifies integration into modern control architectures.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2016-1KB41. We are committed to providing high-quality, authentic components to ensure your industrial operations are efficient and uninterrupted.

Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Part Number	3RT2016-1KB41
AC-3e/AC-3 Rating	9 A
Power Rating	4 kW / 400 V
Poles	3
Coil Voltage	24 V DC (0.7-1.25* Uc)
Auxiliary Contacts	1 NO
Terminal Type	Screw
Size	S00
Suppressor Diode	Yes
PLC Output Compatible	Yes

Common applications

Motor control

PLC interfaces

Automation panels

Industrial machinery

Power distribution

HVAC control

Pump applications

Compatible systems

Designed to interface directly with PLC digital outputs.

Also known as

Siemens 3RT20161KB41 Sirius 3RT20 3RT20 Contactor

Replaces / compatible with

Suitable as a direct replacement for Siemens contactors with identical part numbers and specifications. Verify compatibility for specific systems.

Technical note

Expert tip

This model's design prevents the addition of external auxiliary switches, making it ideal for applications with fixed auxiliary contact requirements.

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Frequently asked questions

What is the function of the suppressor diode in the 3RT2016-1KB41?

The integrated suppressor diode in the Siemens 3RT2016-1KB41 serves to absorb voltage spikes generated when the coil is switched off, thereby protecting sensitive electronic components in the control circuit, like PLC outputs.