3RT2016-1HB42

SIRIUS S00 interface type power contactor, 24V DC coil driven, fixed with 1 set of normally closed auxiliary contacts that cannot be added, AC-3 9A/4kW, net weight approximately 0.298kg, designed specifically for PLC output direct drive applications.

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Siemens 3RT2016-1HB42 Interface Contactor 24VDC 1NC 9A

Product Positioning

The 3RT2016-1HB42 is a power contactor in the Siemens SIRIUS 3RT20 series, suitable for direct drive by PLC digital outputs. It has a coil voltage of 24V DC and a fixed set of normally closed (1NC) auxiliary contacts, which are factory-installed and cannot be fitted with additional auxiliary contact modules. This design makes it particularly suitable for applications requiring simplified wiring and direct triggering of the main circuit from the controller output, such as on/off control of small motors, solenoid valves, or heater circuits. The main circuit maintains a switching capacity of AC-3 9A, 400V/4kW. The entire unit utilizes the smallest SIRIUS S00 housing, weighing approximately 0.298 kg, facilitating installation within existing distribution boxes.

Core Product Advantages and Features

PLC output direct drive design

The 24V DC coil can be directly driven by the PLC digital output point, simplifying the control circuit wiring.

Fixed 1NC auxiliary contact

One set of normally closed auxiliary contacts is factory-defined and cannot be further equipped with auxiliary contact modules. It is suitable for status monitoring or interlocking applications.

AC-3 9A/4kW switching capability

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

Lightweight S00 casing

Net weight approximately 0.298kg, standard outer frame 45×58×73mm, suitable for DIN rail or screw mounting.

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
Coil operating range	0.7–1.25 times the rated voltage
Auxiliary contact	1 NC, factory fixed and cannot be retrofitted.
net weight	Approximately 0.298 kg
Rated insulation voltage	690 V
Enclosure protection rating	IP20
Terminal blocks	Screw terminals
Dimensions of the outer casing (width × height × depth)	45×58×73 mm
Casing Specifications	S00
Operating ambient temperature	-25°C ~ +60°C
Safety certification	CE, UL, CSA, CCC, EAC
Place of origin	Germany

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3RT2016-1HB41

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