Siemens
Siemens 3TH2040-0AL2 Contactor Relay - 230V AC, 4 NO
Siemens 3TH2040-0AL2 Contactor Relay - 230V AC
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Same-day dispatch
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Veteran-owned
CAGE: 9NK75
4 NO Auxiliary Contacts
230V AC Coil Voltage
EN 50011 Standard
Screw Terminals
AC Operation
Product description
The Siemens 3TH2040-0AL2 is a 40E series contactor relay, adhering to EN 50011 standards. This relay is equipped with 4 normally open (NO) contacts and operates on AC voltage at 230V AC (50/60 Hz). It features screw terminals for secure electrical connections.
This contactor relay is designed for use in control circuits within industrial automation, motor control, and electrical panel applications requiring multiple NO contacts for signaling.
Stanlo Automation, a veteran-owned surplus parts distributor, offers reliable industrial automation components. We are dedicated to providing quality products and excellent customer service to support your operations.
Technical specifications
| Contacts | 4 NO |
| Coil Voltage | 230V AC (50/60 Hz) |
| Series | 40E |
| Standard | EN 50011 |
| Connection | Screw terminal |
| Operation | AC |
Common applications
Industrial Control
Automation Systems
Motor Control
Electrical Distribution
Compatible systems
Suitable for AC control circuits in automation, motor control, and electrical panel applications.
Also known as
Siemens 40E Relay
3TH2040-0AL2
Replaces / compatible with
This product is phased-out. The successor is SIRIUS 3RH21.
Technical note
Expert tip
The screw terminals ensure a reliable and durable connection, essential for industrial environments.What happens next?
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Frequently asked questions
What is the purpose of the 4 normally open contacts on the Siemens 3TH2040-0AL2 Contactor Relay?
The four normally open (NO) contacts on the Siemens 3TH2040-0AL2 Contactor Relay allow it to switch multiple control signals simultaneously, providing flexibility in complex control circuits.