3RT2017-1KB41

Like the 1KB42, it belongs to the 24V DC, 2.8W coil family. The difference is that the auxiliary contacts are changed to one set of normally open contacts. It is AC-3 12A/5.5kW/400V, weighs approximately 296g, has an insulation voltage of 690V, and is suitable for general starting control circuits.

Share To

Siemens 3RT2017-1KB41 Contactor 24VDC 2.8W 1NO

Product Positioning

The 3RT2017-1KB41 shares the S00 frame and 24V DC coil design with its sibling, the 1KB42. The coil's operating range is 0.7 to 1.25 times the rated voltage, with a closing and holding power of 2.8W. The main circuit has an AC-3 rated capacity of 12A/5.5kW (400V), and the auxiliary contacts have been changed to one set of normally open (NO) contacts, suitable for operational status feedback, start-up interlocking, or counting circuits. Distributor data indicates a net weight of approximately 296 grams and an insulation voltage of 690V. Both the main circuit and control circuit use screw terminals for easy installation in distribution boxes and subsequent maintenance and replacement.

Core Product Advantages and Features

Low power DC coil

The closing and holding power is 2.8W, which is more energy-efficient and generates less heat than traditional standard coils.

Wide operating voltage range

It can engage normally within a voltage range of 0.7 to 1.25 times the rated voltage, and can still operate stably even with a slight drop in power supply voltage.

1 set of normally open auxiliary contacts

It can be used as an operating status indicator or connected to a PLC input point.

Standard S00 installation specifications

The hole spacing and dimensions of the 3RT20 series S00 frame are used, which makes it easy to directly replace and upgrade existing distribution panels.

project	Specification
Product Type	SIRIUS 3RT20 Series Electric Contactors
Rated current (AC-3)	12 A
Rated power	5.5 kW / 400V AC
Extreme number	3P (3 poles)
Frame size	S00 (45mm wide × 58mm high × 73mm deep)
coil voltage	24V DC
Coil operating range	0.7–1.25 × rated voltage
Auxiliary contacts	1 normally open (1NO) group
Auxiliary contact rated current	AC-12 maximum 10A
Terminal type	Screw terminals, compatible with 0.5–4mm² wires.
net weight	Approximately 296 g
Main circuit insulation voltage	690V
Operating temperature range	-25°C to +60°C
Protection level	IP20 (Front)
Major Certifications	UL, CSA, CCC, EAC

Recommend

3RT2017-1KB42

The AC-3 rated 12A/5.5kW/400V, 24V DC coil closing and holding power consumption is 2.8W, operating range is 0.7-1.25 times the rated voltage, net weight is approximately 281.8g, and it complies with IEC 60947-4-1 mirror contact safety specifications.

3RT2017-1JB42

The 24V DC coil has an operating range of 0.7-1.25 times the rated voltage. It is designed to be directly driven by a PLC digital output and does not require an additional auxiliary contact base. It is AC-3 12A/5.5kW/400V, weighs approximately 293g, and has a built-in 1NC.

3RT2017-1JB41

Like the 1JB42, it belongs to the PLC direct drive coil family. The difference is that it has one set of normally open auxiliary contacts, AC-3 12A/5.5kW/400V, operating range 0.7-1.25 times the rated voltage, net weight approximately 294g, and it cannot be fitted with an additional auxiliary contact socket.