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Siemens 3RT2016-2BB42 3-Pole Contactor | 9A, 24V DC Coil, 1 NC Aux

Siemens 3RT2016-2BB42 3-pole power contactor with 24V DC coil and 1 NC aux.

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ManufacturerSiemens

Part number3RT2016-2BB42

Type AC-3e/AC-3

Current Rating 9A

Power Rating 4 kW / 400 V

Poles 3

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AC-3e/AC-3 rating 9A current capacity 24V DC coil 1 NC auxiliary contact Spring-loaded terminals Size S00

Product description

The Siemens 3RT2016-2BB42 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 9A and 4kW at 400V. This specific model features a 24V DC coil and comes with one normally closed (NC) auxiliary contact. It employs spring-loaded terminals for secure wiring and is housed in a S00 size frame.

This contactor is designed for applications where a normally closed auxiliary contact is required for signaling or interlock functions. It finds use in motor starting circuits, control systems, and power distribution within industries such as manufacturing, material handling, and building automation.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Siemens 3RT2016-2BB42. We provide reliable access to quality components, helping you maintain operational efficiency and reduce downtime. Partner with Stanlo for your automation needs and benefit from our expertise and inventory.

Technical specifications

Type	AC-3e/AC-3
Current Rating	9A
Power Rating	4 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	1 NC
Terminal Type	Spring-loaded
Size	S00

Common applications

Motor control

Control interlocking

Signaling circuits

Power distribution

Manufacturing

Material handling

Building automation

Compatible systems

PLC control circuits Safety interlocks DC control systems

Also known as

Siemens 3RT2016-2BB42 NC Contactor 3RT20162BB42 Siemens Siemens 9A DC Contactor NC S00

Replaces / compatible with

This variant with a normally closed auxiliary contact is suitable for replacing existing Siemens contactors that require NC feedback for control logic. It's compatible with the Siemens 3RT2 series accessory line.

Technical note

Expert tip

The integrated 1 NC auxiliary contact on the 3RT2016-2BB42 can be used for safety interlocks or to provide a status signal to a PLC.

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Frequently asked questions

What type of auxiliary contact does the Siemens 3RT2016-2BB42 have?

The Siemens 3RT2016-2BB42 power contactor is equipped with one normally closed (NC) auxiliary contact. This allows for direct integration into control circuits that require a closed contact when the main power circuit is de-energized.