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Siemens 3RT2027-1FB40 32A Power Contactor - 24V DC Coil with Diode

Siemens 3RT2027-1FB40 32A Power Contactor with 24V DC coil and diode.

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ManufacturerSiemens

Part number3RT2027-1FB40

AC-3e/AC-3 Rating 32A

Power 15 kW / 400 V

Poles 3

Coil Voltage 24 V DC

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Veteran-owned

CAGE: 9NK75

AC-3e/AC-3 Rated 32A Current Rating 24V DC Coil Integrated Diode Combination 1 NO + 1 NC Auxiliary Contacts Size S0

Product description

The Siemens 3RT2027-1FB40 is a 3-pole power contactor suitable for AC-3e/AC-3 duty, rated for 32A and 15kW at 400V. This S0-sized contactor operates with a 24V DC coil and features a built-in diode combination for coil suppression. It includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact and uses screw terminals for connection.

This contactor is ideal for controlling motors and other electrical loads in industrial settings. It finds applications in various automation systems, including conveyor belts, pump controls, and machine tools, where a compact and reliable switching device is required.

Stanlo Automation, a veteran-owned distributor, offers the Siemens 3RT2027-1FB40 surplus power contactor. We provide a cost-effective solution for your automation needs, ensuring quality and prompt delivery.

Technical specifications

AC-3e/AC-3 Rating	32A
Power	15 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	1 NO + 1 NC
Terminals	Screw
Size	S0
Diode	Plugged-in

Common applications

Motor control

Industrial machinery

Automation systems

Control panels

Conveyor systems

Pump controls

Compatible systems

PLC outputs Control panels Automation systems

Also known as

Siemens 3RT2027-1FB40 Contactor Siemens 24V DC Contactor 3RT20 S0 Contactor

Replaces / compatible with

Compatible with Siemens 3RT20 series accessories. The integrated diode suppression is a key feature for specific control circuit requirements.

Technical note

Expert tip

The 3RT2027-1FB40 is suitable for PLC outputs due to its integrated suppression, preventing back EMF from affecting sensitive control electronics.

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Frequently asked questions

What is the function of the diode combination in the Siemens 3RT2027-1FB40?

The plugged-in diode combination in the Siemens 3RT2027-1FB40 acts as a coil suppression circuit. It helps to reduce voltage spikes when the coil is de-energized, protecting control system components.