3RT2016-2VB41

Belonging to the same V-shaped coil family as the 2VB42, the 2VB41 differs in that the auxiliary contacts are changed to one set of normally open (NO). The other wide-range coil characteristics, housing size and terminal type are exactly the same, making it convenient to select the corresponding version according to the control circuit logic.

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Siemens 3RT2016-2VB41 24VDC Wide Range Coil Contactor AC-3 9A 4kW 1 Normally Open

Product Positioning

The 3RT2016-2VB41, like the aforementioned 2VB42, belongs to the Siemens SIRIUS "V" series of coils. Their main circuit and coil electronics are completely shared: both use an S00 housing, AC-3 9A/4kW, and the coils can normally engage within a voltage range of 0.85 to 1.85 times the rated voltage. They also have built-in diodes to suppress induced electromotive force during switching. The main difference lies in the auxiliary contact logic—following Siemens SIRIUS's customary ordering code rules, 41 represents a normally open (NO) auxiliary contact, and 42 represents a normally closed (NC) auxiliary contact. Therefore, the 2VB41 can directly handle "motor running" signal feedback or applications requiring normally open contacts to trigger subsequent circuits, such as indicator light circuits and PLC input signal acquisition. The spring-loaded terminal design eliminates the need for screw fastening, making it suitable for extensive panel wiring and quick maintenance and replacement.

Core Product Advantages and Features

1 set of normally open auxiliary contacts

Suitable for use as operating status feedback, indicator light circuit, or PLC input signal acquisition; interchangeable with normally closed version according to control logic.

Wide-range coil compatibility

Using the same wide-range coil circuit as the 2VB42, it can stably engage within a voltage range of 0.85 to 1.85 times the rated voltage, adapting to voltage fluctuations in the field.

Spring-loaded quick-connect terminal

Both the main circuit and auxiliary contacts are spring-clamp type, allowing for plug-and-play operation with wires ranging from 0.5 to 4 mm², eliminating the need for screws and tools and shortening wiring time.

Shared S00 chassis

It shares the same 45x70x73mm housing and mounting holes as other coil versions in the same series, facilitating standardized panel design.

project	Specification
Main circuit structure	3-pole normally open (3NO) is suitable for direct starting of three-phase motors.
AC-3 Rated Current/Power	9 A / 4 kW (400V)
Maximum rated operating voltage	690V AC 50/60Hz
Case size	S00 (45 mm wide x 70 mm high x 73 mm deep, consistent across all versions)
Mechanical life	Approximately 30 million cycles.
Installation method	35mm standard DIN rail mounting
Auxiliary contact type	1 NO (Normal Open)
Coil voltage/type	24V DC, wide-range coil (0.85~1.85 times Us), built-in diode
Terminal type	Cage clamp type, wire 0.5~4mm²/AWG 20~12
Auxiliary contact rating	AC-12 10A; AC-15 3A/400V (same as the normally closed version in the same series)
Electrical life	AC-4 approximately 200,000 cycles (4.1A/400V, common value for the same series)
Protection level	IP20
Major Certifications	UL, CSA, CCC, KC, EAC, RCM, RoHS compliant

Recommend

3RT2016-2VB42

The Siemens 3RT2016-2VB42 is a SIRIUS contactor with an S00 housing. It can stably engage with a coil voltage of 0.85 to 1.85 times the rated value. It has a built-in diode to suppress back EMF and is equipped with a set of normally closed auxiliary contacts for easy signal feedback configuration.

3RT2016-2KB42

The German manufacturer calls it Koppelschütz (coupling contactor). The coil is designed for low power consumption and can be directly driven by the PLC digital output point. It has a built-in suppression diode protection output terminal and one set of normally closed auxiliary contacts to feedback the circuit break state.

3RT2016-2MB41-0KT0

The M-shaped coil is a 24V DC wide-range design, capable of stable engagement even with a voltage of 0.85~1.85 times the rated value. It has built-in diode protection, and this coil version is supplied in the market with the part number suffix "-0KT0".