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Siemens 3RT2045-1AL20 Power Contactor - 80A, 37kW, 230V AC

Siemens 3RT2045-1AL20: 80A, 37kW 3-pole power contactor with 230V AC coil.

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ManufacturerSiemens

Part number3RT2045-1AL20

Rated operational current AC-3e/AC-3 80 A

Rated power AC-3 (at 400 V) 37 kW

Poles 3

Coil voltage 230 V AC 50/60 Hz

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AC-3e/AC-3 rated operation 80A current rating 37kW power capacity 230V AC coil S3 frame size 1 NO + 1 NC auxiliary contacts Screw terminals

Product description

The Siemens 3RT2045-1AL20 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated for 80A and 37 kW at 400V. This S3 frame size contactor operates with a 230V AC coil (50/60 Hz) and includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact. The main circuit connections are made via screw terminals.

This contactor is suitable for a wide range of industrial applications, including motor control, power switching, and general load management. The 230V AC coil voltage is a common standard in many industrial control systems worldwide. Its S3 frame size indicates its capacity for handling substantial electrical loads reliably.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3RT2045-1AL20. We provide access to quality, functional components to ensure your operations continue smoothly. Trust Stanlo Automation for dependable surplus parts and a commitment to helping you maintain your automation systems efficiently.

Technical specifications

Rated operational current AC-3e/AC-3	80 A
Rated power AC-3 (at 400 V)	37 kW
Poles	3
Coil voltage	230 V AC 50/60 Hz
Auxiliary contacts	1 NO + 1 NC
Terminal type	Screw
Frame size	S3

Common applications

Motor control

Power switching

Industrial automation

Control panels

Manufacturing

Machine control

Distribution systems

Compatible systems

Industrial automation systems and motor control applications using 230V AC control circuits.

Also known as

Siemens 3RT2045-1AL20 Contactor SIRIUS 3RT20 Contactor Siemens 80A 230V AC Contactor 3RT2045-1AL20

Replaces / compatible with

This contactor can replace other Siemens SIRIUS 3RT20 series contactors with comparable specifications and a 230V AC coil. It is compatible with standard Siemens auxiliary contact blocks.

Technical note

Expert tip

The 230V AC coil on the 3RT2045-1AL20 is a widely used standard, ensuring broad compatibility in industrial control panels and systems globally.

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Frequently asked questions

What is the coil voltage and frequency rating for the Siemens 3RT2045-1AL20?

The Siemens 3RT2045-1AL20 features a 230V AC coil that is rated for operation at both 50 Hz and 60 Hz frequencies. This makes it suitable for use in various global power systems.