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Siemens 3RT2015-1FB41 Contactor with Integrated Diode

Siemens 7A power contactor with 24V DC coil and integrated suppression diode.

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ManufacturerSiemens

Part number3RT2015-1FB41

Type Power Contactor

Series SIRIUS 3RT2

Poles 3

Rated Operational Current AC-3e/AC-3 7 A

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Integrated suppression diode AC-3e/AC-3 rating 3-pole 24V DC coil 1 NO auxiliary contact Size S00

Product description

The Siemens 3RT2015-1FB41 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 7A and 3kW (400V). This model uniquely features an integrated suppression diode for surge protection on its 24V DC coil. It includes one normally open (NO) auxiliary contact and uses screw terminals in a size S00 frame.

The integrated diode offers significant benefits by protecting connected control electronics from voltage spikes generated when the coil is de-energized. This makes it ideal for applications where sensitive PLCs or other control components are present.

Stanlo Automation, a veteran-owned supplier, offers the Siemens 3RT2015-1FB41. We are dedicated to providing high-quality surplus industrial automation parts, ensuring your systems are protected and reliable.

Technical specifications

Type	Power Contactor
Series	SIRIUS 3RT2
Poles	3
Rated Operational Current AC-3e/AC-3	7 A
Rated Operational Power AC-3e/AC-3	3 kW @ 400 V
Coil Voltage	24 V DC
Auxiliary Contacts	1 NO
Terminal Type	Screw Terminal
Size	S00
Integrated Diode	Yes

Common applications

PLC controlled systems

Motor control

Automation panels

Sensitive electronics protection

Power switching

Industrial machinery

Compatible systems

Ideal for use with PLCs and other sensitive control devices that require protection against inductive voltage spikes from DC coils.

Also known as

Siemens 3RT20151FB41 SIRIUS 3RT2 Diode Contactor 7A Surge Protected Contactor 24V DC Contactor with Diode

Replaces / compatible with

This contactor is designed to replace Siemens SIRIUS 3RT2 series contactors in applications where coil surge protection is desired, eliminating the need for external suppressor diodes. It maintains the same electrical ratings and auxiliary contact configuration.

Technical note

Expert tip

The integrated diode on the 3RT2015-1FB41 provides effective transient suppression, simplifying wiring and ensuring compatibility with modern control systems that require coil protection.

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Frequently asked questions

What is the purpose of the integrated diode in the Siemens 3RT2015-1FB41?

The integrated diode in the Siemens 3RT2015-1FB41 acts as a suppression element for the DC coil. When the coil is de-energized, the diode clamps the inductive voltage spike, protecting sensitive control electronics like PLCs from damage.