3RT1016-1BB42

The Siemens SIRIUS 3RT1016-1BB42 is a small three-pole contactor with an S00 frame. It is rated AC-3 at 9A and can switch 4kW three-phase motor loads at 400V. The coil operates at 24V DC. It has a built-in normally closed auxiliary contact for interlocking or status feedback. It features screw terminal connections, weighs approximately 0.26kg, and has a mechanical life of 30 million cycles.

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Siemens 3RT1016-1BB42 24VDC contactor 1NC

Product Positioning

The 3RT1016-1BB42 is one of the most common 24V DC coil contactors in the Siemens SIRIUS 3RT10 series. Its compact S00 frame, equipped with one set of normally closed auxiliary contacts, makes it suitable for interlocking protection or monitoring of shutdown status. The main circuit AC-3 is rated at 9A, capable of stably switching 4kW three-phase motor loads at 400V. Screw terminal wiring facilitates maintenance, making it a standard choice for small motor circuits such as pumps and fans in DC control panels.

Core Product Advantages and Features

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 DC control power supply systems.

1 set of normally closed auxiliary contacts

It has a built-in 1NC auxiliary contact, which can be used for interlocking protection or status monitoring feedback.

S00 Small Frame

It is compact and lightweight, weighing approximately 0.26kg, and can be mounted on a 35mm standard guide rail.

Screw terminal design

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

High mechanical life

Typical mechanical life reaches 30 million operations, suitable for frequent operation applications.

project	Specification
AC-3 rated current (400V)	9 A
AC-3 Rated Power (400V)	4 kW
coil voltage	24 V DC
Auxiliary contact	Group 1 normally closed (1NC)
Extreme number	3 poles
Casing size	45 (width) × 57.5 (height) × 72 (depth) mm
net weight	Approximately 0.263 kg
Terminal type	Screw terminals
Mechanical life	Typical 30 million times
Protection level	IP20
Frame size	S00

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3RT1016-1BB41

The Siemens SIRIUS 3RT1016-1BB41 is an S00 miniature contactor, belonging to the same 24V DC coil series as the 1BB42. The difference lies in its configuration with one set of normally open auxiliary contacts, suitable for operation indication or start interlock signals. The main circuit has an AC-3 rated capacity of 9A, a power output of 4kW at 400V, and a mechanical life of 30 million cycles.

3RT1016-1AP02

The Siemens SIRIUS 3RT1016-1AP02 is an S00 frame contactor with a coil of 230V AC (50/60Hz). It can be directly controlled by mains power without the need for a control transformer. It has an AC-3 rated current of 9A and can switch 4kW motor loads at 400V. It has one set of normally closed auxiliary contacts and an operating temperature of -25~60°C.