Siemens
Siemens 3RT1045-1BB40 SIRIUS Power Contactor
Siemens 3RT1045-1BB40 SIRIUS Power Contactor
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
In Stock — Ready to Ship
Get a price for 3RT1045-1BB40
Response within 1 business hour
12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
80A AC-3 rating
37kW @ 400V
24V DC coil
3-pole configuration
Size S3
Product description
The Siemens 3RT1045-1BB40 is a 3-pole power contactor from the SIRIUS line, rated for AC-3 duty with a current of 80 A and a power of 37 kW at 400 V. It features a 24 V DC coil and is in Size S3. Please note that this is a phased-out product.
This contactor is designed for switching power circuits, typically used for controlling motors and other inductive or resistive loads in industrial applications. Its robust construction ensures reliable operation in demanding environments.
Stanlo Automation, a veteran-owned surplus parts distributor, has this Siemens 3RT1045-1BB40 power contactor available. We are your source for industrial automation components.
Technical specifications
| Part Number | 3RT1045-1BB40 |
| Manufacturer | Siemens |
| Series | SIRIUS |
| Type | Power Contactor |
| AC-3 Rating | 80 A |
| Power | 37 kW @ 400 V |
| Coil Voltage | 24 V DC |
| Poles | 3 |
| Size | S3 |
| Terminal Type | Screw terminal |
| Status | Phased-out |
Common applications
Motor control
Power switching
Industrial machinery
Automation systems
Pump control
Compatible systems
Siemens SIRIUS Motor Starters
Industrial Control Panels
Automation Systems
Also known as
Siemens SIRIUS Contactor 3RT1045
80A 24VDC Contactor
Replaces / compatible with
This is a phased-out product. The preferred successor is the SIRIUS 3RT2038-1KB40.
Technical note
Expert tip
As this is a phased-out part, ensure that spare parts and accessories are still available for the successor model if long-term support is required.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the successor to the Siemens 3RT1045-1BB40 contactor?
The Siemens 3RT1045-1BB40 is a phased-out product. The preferred successor is the SIRIUS 3RT2038-1KB40, which offers updated features and specifications.