3RT2017-1AB01

The Siemens 3RT2017-1AB01 is an S00 miniature 3-pole power contactor with main contacts rated at 12A, 5.5kW/400V, 24V AC (50/60Hz) coil drive, and a built-in set of normally open auxiliary contacts. Weighing only about 232 grams, it is suitable for control box configurations with limited space.

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Siemens 3RT2017-1AB01 AC contactor 12A 5.5kW 24VAC 1NO

Product Positioning

Both 3RT2017-1AB01 and 1AB02 belong to the SIRIUS 3RT2017 series, sharing the S00 frame and AC-3 12A, 5.5kW/400V main contact specifications. The difference lies in the auxiliary contacts, which are normally open (1NO) designed, suitable for circuits requiring a signal that is "conducted only after the contactor actuates," such as operation indicator lights, timer start signals, or PLC input feedback. The control coil is also 24V AC 50/60Hz, and can be used interchangeably with 1AB02 as part number options.

Core Product Advantages and Features

12A/5.5kW main contact specifications

It shares the same main circuit design as the 1AB02 in the same series. The AC-3 is rated at 12A and 5.5kW/400V, which is sufficient to handle the direct starting current of general small and medium-sized motors.

Built-in 1 set of normally open auxiliary contacts

The auxiliary contacts are designed to be 1NO, meaning they only conduct after the contactor is engaged. This makes them suitable for use as operating status indicators, timing start signals, or for linkage with PLC input points.

24V AC standard coil

The coil voltage is 24V AC 50/60Hz, and the operating range is approximately 0.8~1.1 times the rated voltage. It can directly correspond to the secondary output of most control transformers.

Lightweight S00 design

Weighing approximately 232 grams and measuring 45×58×73mm, it is suitable for space configuration within dense distribution panels and machine control boxes.

project	Specification
model	3RT2017-1AB01
Rated current (AC-3)	12 A
Rated power (400V, AC-3)	5.5 kW
Number of poles/main contacts	3 poles, 3 sets of normally open (NO) terminals
coil voltage	24V AC, 50/60Hz
auxiliary contacts	1 normally open (1NO) group
Terminal type	Screw terminals
Shell dimensions (height × width × depth)	58×45×73 mm
net weight	Approximately 232 g
Mechanical life	Approximately 30 million times
Insulation voltage	690 V
Protection level	IP20 (Front)
Ambient temperature	-25°C ~ +60°C
Safety certification	CSA, UL, CCC, KC, EAC

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