3RT2017-2BB41
The Siemens SIRIUS 3RT2017-2BB41 features a 24V DC coil with one set of normally open (NO) auxiliary contacts, spring-loaded terminal wiring, and the same main circuit specifications as the 2BB42.
Product Positioning
The 3RT2017-2BB41 and 2BB42 are both S00 three-pole contactors with 24V DC coils. Their main circuits are identical (AC-3 400V rated 12A, 5.5kW), differing only in that the auxiliary contacts are replaced with a single set of NO instantaneous contacts. Wiring uses spring-type terminals, making them a standard choice for motor control circuits requiring normally open signal feedback (such as operation indication or timing start).
Core Product Advantages and Features
1 set of NO auxiliary contacts
Normally open instantaneous contacts are convenient for use as operating status indicators, timer triggers, or interlock start signals.
Same chassis and main circuit specifications as 2BB42
The only difference is the polarity of the auxiliary contacts, allowing for flexible replacement based on control logic requirements (NO/NC).
Spring-loaded terminal design
Screwless fastening, fast wiring speed, and not easily loosened by vibration during long-term use.
S00 Standard Framework
Its compact size and standardized mounting holes make it easy to mix and arrange with other contactors of the same series in the distribution box.
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3RT2017-2BB42
The Siemens SIRIUS 3RT2017-2BB42 features a 24V DC coil and one normally closed auxiliary contact (10A AC-12), supporting a wide operating temperature range of -25°C to +60°C.
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3RT2017-2AP04
The Siemens SIRIUS 3RT2017-2AP04 is an AC coil model, 230V AC/50-60Hz, equipped with one set of NC auxiliary contacts, which can be controlled without the need to install a DC power supply module.
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3RT2017-2AF01
The Siemens SIRIUS 3RT2017-2AF01 features a 110V AC coil, one set of normally open auxiliary contacts, weighs only 0.253kg, and has a contact reliability of approximately 100 million operations with only one failure.