Siemens
Siemens 3RT1944-5AL21 Magnet Coil for Size S3
Siemens 3RT1944-5AL21 Magnet Coil.
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12-Mo Warranty
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12-month warranty
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Same-day dispatch
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Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Activates Size S3 contactors
230V AC operation
50/60 Hz compatible
Screw terminals for secure connections
Part of the SIRIUS series
Product description
The Siemens 3RT1944-5AL21 is a magnet coil designed for SIRIUS Size S3 contactors. It features screw terminals and operates on 230V AC at 50/60 Hz.
This coil is essential for the operation of the contactor, providing the electromagnetic force needed to close the main contacts. It's a critical component for motor starting and load control.
Stanlo Automation, a veteran-owned business, offers this part as surplus. We provide reliable components and expert support for your industrial automation requirements.
Technical specifications
| Type | Magnet Coil |
| For Contactor Size | S3 |
| Voltage | 230 V AC |
| Frequency | 50/60 Hz |
| Terminal Type | Screw Terminal |
| Series | SIRIUS 3RT19 |
Common applications
Motor control
Industrial automation
Power switching
Control panels
Manufacturing equipment
Compatible systems
Siemens SIRIUS 3RT1 Size S3 Contactors
Also known as
Siemens 3RT1944-5AL21 coil
3RT1944-5AL21 contactor coil
Siemens S3 230V coil
Replaces / compatible with
This is a phased-out product. The successor is SIRIUS 3RT2.
Technical note
Expert tip
This 230V AC coil is suitable for Size S3 SIRIUS contactors and should be verified against the contactor's rated coil voltage before installation.What happens next?
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2
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Confirms your part's spec and condition
3
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Frequently asked questions
What is the voltage rating of the Siemens 3RT1944-5AL21 magnet coil?
The Siemens 3RT1944-5AL21 magnet coil is designed to operate at 230 Volts AC, making it suitable for standard industrial power supplies.