3RT10161BB443MA0

The 3RT1016-1BB44-3MA0 is the SIRIUS S00 contactor model with the most auxiliary contacts. It has four sets of permanently engaged contacts (2NO + 2NC) to meet interlocking, indicating, and feedback requirements. The main circuit is rated at 9A AC-3, 4kW at 400V, with a coil of 24V DC and a net weight of approximately 0.2kg, making it suitable for star-delta starting applications.

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Siemens 3RT1016-1BB44-3MA0 24VDC contactor 2NO2NC

Product Positioning

The 3RT1016-1BB44-3MA0 is the S00 miniature contactor in the Siemens SIRIUS 3RT10 series, featuring the most auxiliary contact configurations. It integrates two sets of permanently engaged normally open and two sets of normally closed auxiliary contacts, satisfying multiple control requirements such as interlocking, indication, and feedback in one unit, reducing the hassle of installing additional auxiliary contact sockets. The main circuit maintains the standard 9A, 4kW S00 specification, with a 24V DC coil and screw terminals, suitable for star-delta start circuits or automation equipment requiring multiple signal outputs.

Core Product Advantages and Features

2NO+2NC enriched contact points

It has four built-in permanent connection auxiliary contacts to meet interlocking and signal feedback needs at once.

9A/4kW main circuit

The AC-3 has a rated current of 9A and can switch 4kW three-phase motor loads at 400V.

24V DC coil

The DC coil design makes it suitable for integration with PLC or DC control systems.

Star-shaped Startup Application

Multiple sets of auxiliary contacts are particularly suitable for interlocking circuits such as star-delta start and sequential control.

Screw terminal design

Both the main and auxiliary circuits use screw terminals, making wiring and maintenance quite convenient.

S00 Small Frame

It is compact and weighs about 0.2kg, and can be mounted on a 35mm standard guide rail.

project	Specification
AC-3 rated current (400V)	9 A
AC-3 Rated Power (400V)	4 kW
coil voltage	24 V DC
Auxiliary contact	Permanently connected type: 2 sets of normally open + 2 sets of normally closed (2NO + 2NC)
Extreme number	3 poles
Terminal type	Screw terminals
net weight	Approximately 0.2 kg
External dimensions	Approximately 51×51×76 mm
Frame size	S00

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