3RT1054-6NB36

The Siemens SIRIUS 3RT1054-6NB36 is a large three-pole contactor with an S6 frame. The main circuit has a rated current of 115A (AC-3) and corresponds to approximately 55kW at 400V. The operating mechanism is electronic, and the control power supply is 21-27.3V AC/DC, which is a relatively low voltage 24V level. It also has two normally open and two normally closed auxiliary contacts.

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Siemens SIRIUS 3RT1054-6NB36 Electronic 24V Contactor

Product Positioning

The 3RT1054-6NB36 is a model in the Siemens SIRIUS S6 large contactor electronic series with a lower control voltage. Its control power supply ranges from 21-27.3V AC/DC, making it suitable for panel designs with a primary control voltage of 24V, while maintaining a main circuit carrying capacity of 115A and 55kW. Kenxin Motors can assist in comparing options with similar voltage levels.

Core Product Advantages and Features

S6 Large Contactor Frame

It belongs to the Siemens SIRIUS 3RT10 series S6 frame, and the main circuit can bear large motor loads.

AC-3 rated 115A/55kW

AC-3 is a category with a rated current of 115A, corresponding to a motor power of approximately 55kW at 400V.

Electronic 24V level controlled power supply

The operating mechanism is electronic, and the control power supply is 21-27.3V AC/DC, which belongs to the lower voltage level series.

2NO+2NC auxiliary contacts

It has two sets of normally open and two sets of normally closed auxiliary contacts, which can be used for interlocking and status feedback.

Screw terminal wiring design

The main circuit and control terminals use screw terminals for easy installation and subsequent maintenance and replacement.

Suitable for 24V control panel

The control voltage is close to the common 24V DC signal, simplifying compatibility with existing 24V control systems.

project	Specification
brand	Siemens
series	SIRIUS 3RT10
model	3RT1054-6NB36
Frame size	S6
Extreme number	3 poles
AC-3 rated current	115 A
AC-3 power rating (400V)	55 kW
Control power supply	21-27.3 V AC/DC
Operating mechanism	Electronic
Auxiliary contact	2 NO + 2 NC
Main circuit terminals	Screw terminals
External dimensions (height x width x depth) reference values	172 x 120 x 170 mm

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