Siemens
Siemens 3TH2280-0BB4 Contactor Relay - 80E, 8 NO, DC Operation
Siemens 3TH2280-0BB4 Contactor Relay with 8 NO contacts.
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8 Normally Open (NO) Contacts
24V DC Operation
EN 50011 Standard
45mm Width
Screw Terminals
Product description
The Siemens 3TH2280-0BB4 is a contactor relay designed for DC control circuits, featuring 8 normally open (NO) contacts. It operates with a 24V DC coil voltage and conforms to EN 50011 standards.
This relay is ideal for applications requiring a high number of NO contacts for switching and signaling in DC systems. Its robust construction ensures reliability and longevity in demanding industrial environments. The 45mm width makes it suitable for efficient panel mounting.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TH2280-0BB4. We provide quality automation components and expert service to support your industrial needs.
Technical specifications
| Manufacturer | Siemens |
| Part Number | 3TH2280-0BB4 |
| Type | Contactor Relay |
| Contacts | 8 NO |
| Coil Voltage | 24V DC |
| Width | 45 mm |
| Standard | EN 50011 |
| Operation | DC |
Common applications
DC Control Circuits
Signaling
Automation Systems
Industrial Control Panels
Electrical Assemblies
Compatible systems
Designed for DC control systems and compatible with standard wiring practices.
Also known as
Siemens 3TH2280-0BB4 Contactor
Siemens 24V DC 8 NO Relay
80E DC Contactor Relay
Replaces / compatible with
This is a phased-out product. The successor is the Siemens SIRIUS 3RH21 series.
Technical note
Expert tip
This phased-out 45mm wide contactor relay is designed for 24V DC operation and offers a substantial 8 NO contact configuration.What happens next?
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Frequently asked questions
What is the contact configuration of the Siemens 3TH2280-0BB4 contactor relay?
The Siemens 3TH2280-0BB4 contactor relay features 8 normally open (NO) contacts and is designed for 24V DC operation.