3RT2017-2FB41

Siemens 3RT2017-2FB41 DC electromagnetic contactor, 24VDC, 12A/5.5kW, 1NO
Siemens 3RT2017-2FB41 DC electromagnetic contactor, 24VDC, 12A/5.5kW, 1NO

The Siemens SIRIUS 3RT2017-2FB41 features a 24V DC coil with one set of normally open auxiliary contacts, a closing delay of 30~100ms, a release delay of 38~65ms, and a maximum AC-3 lifespan of 750 cycles per hour.

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Siemens 3RT2017-2FB41 DC electromagnetic contactor, 24VDC, 12A/5.5kW, 1NO
Product Positioning

The 3RT2017-2FB41 is a SIRIUS 3RT20 series S00 three-pole contactor. Its main circuit AC-3 specifications are consistent with other contactors in the series (400V/12A/5.5kW). The coil uses 24V DC and has a built-in suppression diode. The auxiliary contacts are a single set of NO instantaneous contacts. A key feature is that the official documentation clearly indicates a DC operating closing delay of 30~100ms, a release delay of 38~65ms, and a maximum allowable switching frequency of 750 times/hour for AC-3, facilitating engineers' precise calculation of control circuit timing.

Core Product Advantages and Features
Clearly indicate the sequence of actions
With a closing delay of 30~100ms and a release delay of 38~65ms (DC), it is suitable for interlocking or synchronous control designs that require precise switching timing.
Maximum switching frequency of 750 times/hour
The permissible operating frequency under AC-3 conditions is clearly defined, which facilitates the assessment of the durability of motors used in applications with frequent start-stop cycles.
24V DC coil, built-in suppression diode
It ensures stable operation while reducing interference from power outage surges on the control circuit.
35mm DIN rail mounting
Meets EN 60715 standard guide rails and is equipped with spring terminals, making on-site installation and replacement faster.
project Specification
Rated operating current (AC-3, 400V) 12 A
Rated operating power (AC-3, 400V) 5.5 kW
Main contact type 3NO (3-pole normally open)
Coil voltage/type 24 V DC, built-in suppression diode
Auxiliary contact 1 NO instantaneous contact
Closure delay (DC) 30 ~ 100 ms
Release Delay (DC) 38 ~ 65 ms
Permissible switching frequency (AC-3) Up to 750 times/hour
Terminal blocks Spring-type terminals
External dimensions (height x width x depth) 70 x 45 x 73 mm
weight 0.315 kg
Installation method 35mm DIN rail (EN 60715)
Mechanical operating life 30 million times
Certification CE, UL, CSA, CCC, KC, EAC, RoHS

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