3RT2016-1VB42

The Siemens SIRIUS 3RT2016-1VB42 uses a 24V DC coil, operates within a range of 0.85 to 1.85 times the rated voltage, has a built-in rectifier diode and one set of normally closed auxiliary contacts, screw-type terminals, and is rated for AC-3 9A/4kW/400V, making it suitable for DC control circuits.

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Siemens 3RT2016-1VB42 Screw-connected contactor, 24V DC coil, built-in diode.

Product Positioning

The 3RT2016-1VB42 is a DC coil-coupled contactor in the Siemens SIRIUS 3RT2016 screw terminal series. The control coil is rated at 24V DC, with a wide operating voltage range of 0.85 to 1.85 times the rated value (0.85-1.85×Uc). An integrated suppression diode effectively reduces induced surges during coil de-energization, improving the lifespan and stability of drive circuits (such as PLC outputs). This product has one built-in normally closed (NC) auxiliary contact. The main circuit maintains a 3-pole AC-3 rated voltage of 9A, 4kW/400V. The frame is S00, and the product weighs approximately 0.296 kg and measures approximately 50×61.5×77.5mm. Because the auxiliary contact is integrated with the coil, this model cannot be fitted with a separate auxiliary contact module. It is recommended to confirm the actual number of contacts required before purchasing.

Core Product Advantages and Features

24V DC wide range coil

The coil has an operating voltage range of 0.85 to 1.85 times its rated value, and its tolerance to power supply voltage fluctuations is wider than that of a standard DC coil, thus improving its flexibility in field use.

Built-in rectifier suppression diode

The coil integrates a diode, which can absorb the induced surge generated during power failure and protect the PLC output contacts or drive circuit from voltage surge damage.

1 set of normally closed auxiliary contacts

It comes standard with 1 NC auxiliary contact, which is suitable for use as a fault interlock, power failure protection or status feedback signal. However, this model cannot be equipped with an additional auxiliary module.

Screw-type terminal blocks

Both the main circuit and the control circuit adopt the traditional screw terminal design, which has good locking force and wire contact stability, making it suitable for industrial sites that require regular inspection and maintenance.

project	Specification
model	3RT2016-1VB42
series	Siemens SIRIUS 3RT2 series (coupled type)
Extreme number	3 poles
Frame size	S00
AC-3 Rated Current/Power	9A / 4kW (400V)
Control coil voltage	24V DC
Coil operating voltage range	0.85~1.85×Uc
Coil Additional Functions	Built-in rectifier suppression diode
Auxiliary contact	One normally closed (NC) module cannot be added.
Terminal block type	screw type
External dimensions	Approximately 50×61.5×77.5mm
net weight	Approximately 0.296 kg
country of origin	Germany

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