3RT2017-2BB42

Siemens 3RT2017-2BB42 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NC
Siemens 3RT2017-2BB42 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NC

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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Siemens 3RT2017-2BB42 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NC
Product Positioning

The 3RT2017-2BB42 is a SIRIUS 3RT20 S00 series three-pole contactor with a 24V DC coil. The main circuit has an AC-3 rated capacity of 12A and can control a 5.5kW load at 400V. It is equipped with one set of NC instantaneous auxiliary contacts (AC-12 rated 10A). Wiring uses spring clip terminals and supports DIN rail or panel mounting. The applicable temperature range is -25°C to +60°C. It is one of the commonly used basic contactors for motor on/off control in production lines.

Core Product Advantages and Features
24V DC coil with NC auxiliary contacts
The normally closed instantaneous contact is rated at 10A (AC-12), which is convenient for connecting in series with interlocking circuits or fault monitoring circuits.
DIN rail and panel dual-purpose mounting
Supports standard rail mounting or direct panel locking, allowing for flexible selection of installation methods depending on the panel configuration.
Wide temperature range -25°C to +60°C
It can adapt to the ambient temperature changes in general factories and outdoor power distribution boxes, and has high operational stability.
Spring clip terminal wiring
The screwless locking design speeds up wiring efficiency and is less prone to loosening due to vibration even after long-term use.
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
Auxiliary contact 1 NC, rated current 10A (AC-12)
Terminal blocks Spring clip terminal
Installation method DIN rail/panel mounting
Operating temperature range -25°C ~ +60°C
Insulation voltage 690 V
weight Approximately 0.31 kg
Frame size S00

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