3RT2016-1BB44

The SIRIUS S00 power contactor features a 24V DC coil with 4 auxiliary contacts (2 normally open + 2 normally closed), AC-3 9A/4kW, and a net weight of approximately 0.338kg. It is suitable for circuits requiring multiple interlocking signals.

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Siemens 3RT2016-1BB44 contactor 24VDC 2NO+2NC 9A

Product Positioning

The 3RT2016-1BB44 is the version with the most auxiliary contacts in the Siemens SIRIUS standard series. It features a 24V DC coil with four built-in auxiliary contacts: two normally open (2NO) and two normally closed (2NC). Compared to models in the same series with only one auxiliary contact, it can simultaneously provide multiple signal outputs, including start-up status feedback, interlock protection, and remote monitoring, reducing the need for additional auxiliary contact modules. The main circuit maintains AC-3 9A, 400V/4kW switching capability. Due to the larger number of auxiliary contacts, the overall net weight is approximately 0.338 kg, slightly higher than single-contact models in the same series. Wiring is done via screw terminals, and the chassis size remains the smallest SIRIUS S00, suitable for control panel designs with limited space but requiring numerous interlock signals.

Core Product Advantages and Features

4 sets of auxiliary contacts (2 NO + 2 NC)

It also provides four sets of signal outputs: two normally open and two normally closed, reducing the need for additional auxiliary modules.

24V DC coil drive

The coil is rated at 24V DC and can be directly driven by the PLC output or control power supply.

AC-3 9A/4kW main circuit

The 3-pole main contacts can directly switch 400V/9A three-phase loads, conforming to IEC 60947-5-1 standard.

Compact S00 housing

Despite the large number of auxiliary contacts, it still maintains the minimum housing size of S00, with a net weight of approximately 0.338kg.

project	Specification
Rated current of main circuit (AC-3)	9 A
Rated power (400V, AC-3)	4 kW
Extreme number	3-pole (3P)
coil voltage	24 V DC
Auxiliary contact	2 NO + 2 NC (4 groups in total)
net weight	Approximately 0.338 kg
Terminal blocks	Screw terminals
Casing Specifications	S00
Product Classification (eClass)	27-37-10-03
Product Categories (ETIM)	EC000066
Environmental protection standards	RoHS compliant (since October 1, 2009)
Place of origin	Germany

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