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Siemens 3RT1945-5AK61 SIRIUS S3 Magnet Coil - 110-120V AC

Siemens 3RT1945-5AK61 SIRIUS S3 magnet coil for dual frequency.

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ManufacturerSiemens

Part number3RT1945-5AK61

Type Magnet Coil

Series SIRIUS

Contactor Size S3

Terminal Type Screw Terminal

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Designed for SIRIUS S3 contactors Dual voltage/frequency operation 110V AC at 50 Hz 120V AC at 60 Hz Screw terminal connections

Product description

The Siemens 3RT1945-5AK61 is a magnet coil engineered for SIRIUS contactors of frame size S3. It operates on 110V AC at 50 Hz or 120V AC at 60 Hz, featuring screw terminals for secure electrical connections. This coil is essential for enabling the contactor to switch power circuits in demanding industrial environments.

This coil is utilized in a wide array of applications, including motor control circuits, power switching, and automation systems within manufacturing facilities, water treatment plants, and commercial buildings. Its dual-frequency capability makes it versatile for installations in regions with different grid frequencies.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Siemens 3RT1945-5AK61. We provide reliable sourcing for obsolete and hard-to-find components to keep your operations running smoothly.

Technical specifications

Type	Magnet Coil
Series	SIRIUS
Contactor Size	S3
Terminal Type	Screw Terminal
Voltage	110 V AC (50 Hz) / 120 V AC (60 Hz)

Common applications

Motor starting

Power switching

Industrial control

Automation systems

HVAC control

Compatible systems

SIRIUS 3RT contactors, Size S3

Also known as

Siemens 3RT1945-5AK61 coil SIRIUS S3 110/120V AC coil Siemens dual frequency contactor coil

Replaces / compatible with

This magnet coil is an accessory for Siemens SIRIUS 3RT contactors, size S3. It is a phased-out product with the SIRIUS 3RT2 series as its successor.

Technical note

Expert tip

This magnet coil is specifically for Siemens SIRIUS S3 contactors and is a phased-out component, with the 3RT2 series being the successor.

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Frequently asked questions

Can the Siemens 3RT1945-5AK61 magnet coil be used with both 50 Hz and 60 Hz power supplies?

Yes, the Siemens 3RT1945-5AK61 magnet coil is designed for dual-frequency operation. It can be used with 110V AC at 50 Hz or 120V AC at 60 Hz power supplies.