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Siemens 3RT2038-1AP04 80A 3-Pole Contactor, 230V AC 50Hz, 2NO+2NC Aux

Siemens 3RT2038-1AP04 80A 3-pole contactor, 230V AC 50Hz coil, 2NO+2NC aux.

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ManufacturerSiemens

Part number3RT2038-1AP04

Type Power Contactor

Application AC-3e/AC-3

Current Rating 80 A

Power 37 kW / 400 V

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AC-3e/AC-3 rated 80A current capacity 37kW power handling 230V AC 50Hz coil 2 NO + 2 NC auxiliary contacts Removable auxiliary switch

Product description

The Siemens 3RT2038-1AP04 is a powerful 3-pole power contactor engineered for AC-3e/AC-3 duty, handling up to 80A and 37kW at 400V. It features a 230V AC coil specifically tuned for 50Hz frequency. This model is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing greater control and feedback capabilities. The integrated removable auxiliary switch further enhances its application flexibility. Built in size S2 with screw terminals, it ensures reliable and secure connections.

This contactor is extensively used in industrial motor control applications, automation systems, and power distribution circuits where precise switching and extensive signaling are required. Its 50Hz coil frequency makes it ideal for regions with standard 50Hz power grids.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RT2038-1AP04. We are dedicated to providing quality components at competitive prices, helping you optimize your automation investments. Trust Stanlo Automation for dependable service and a wide selection of Siemens contactors.

Technical specifications

Type	Power Contactor
Application	AC-3e/AC-3
Current Rating	80 A
Power	37 kW / 400 V
Poles	3
Coil Voltage	230 V AC, 50 Hz
Auxiliary Contacts	2 NO + 2 NC
Removable Auxiliary Switch	Yes
Size	S2

Common applications

Motor control

Industrial automation

Power switching

Control panels

Manufacturing

HVAC systems

Compatible systems

Control systems requiring 230V AC 50Hz coil voltage, 80A switching, and 2 NO + 2 NC auxiliary contacts.

Also known as

Siemens 3RT2038-1AP04 Contactor 3RT2 Series 50Hz Siemens S2 Contactor 230V 50Hz

Replaces / compatible with

Designed as a direct replacement for Siemens 3RT2 series contactors in S2 frame size with 230V AC 50Hz coils and 2NO+2NC auxiliary contacts.

Technical note

Expert tip

The removable auxiliary switch module allows for easy addition or replacement of auxiliary contacts without needing to remove the main power contactor from its mounting.

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Frequently asked questions

Can the Siemens 3RT2038-1AP04 be used in a 60Hz system?

No, the 3RT2038-1AP04 is specifically designed for 230V AC at 50Hz. Using it on a 60Hz system could lead to incorrect coil operation, overheating, or premature failure. Always match the coil frequency to the available power supply.