Siemens 3TH2040-0BB4 Contactor Relay – 40E, EN 50011, 4 NO, Screw Terminal, DC Operation 24V
The Siemens 3TH2040-0BB4 Contactor Relay is designed for industrial automation applications, offering reliable switching capabilities with EN 50011 compliance. This relay is ideal for controlling motors and other electrical devices in demanding environments.
Extended Product Type:Relay
Product ID:3TH2040-0BB4
Siemens Type Designation:Relay
Contact Configuration:40E, EN 50011, 4 NO
Operation Type:Screw terminal DC operation 24 VDC
Product Lifecycle:Phased-out product
The Siemens 3TH2040-0BB4 Contactor Relay offers an efficient solution for industrial applications where reliable switching is required. This model is specifically designed for use in direct current (DC) circuits, providing stable performance even under frequent switching conditions. Built with durable materials, it ensures long-lasting operation in harsh environments.
Its EN 50011 compliance guarantees adherence to international standards, making it suitable for integration into existing control systems without the need for additional modifications. The 4 NO contacts provide ample capacity for handling various load requirements, ensuring seamless operation in demanding applications.
Installation is straightforward with the screw terminal design, allowing for secure connections that reduce the risk of loose wiring. Despite being a phased-out product, it remains a popular choice among users who value its proven reliability and performance over newer models.
For those seeking dependable and robust electrical switching solutions, the Siemens 3TH2040-0BB4 Contactor Relay stands out as a top choice.












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