3TK2825-1BB40
Buying 3TK2825-1BB40 from Flexa Systems
Buy the Siemens 3TK2825-1BB40 contactor refurbished and in stock, with brand new units available on request, or send yours to Flexa Systems for repair. This Siemens contactor is rated for 24 Vdc with a 6 A current rating and 3 safety contacts, so it belongs in the 24 Vdc safety circuit of a machine control panel. Its three safety contacts are typically wired into the panel's safety chain, so a replacement must carry the same contact count and ratings for the circuit to work as designed. Every refurbished 3TK2825-1BB40 is tested before it ships, carries a 2-year warranty and typically costs 30-60% less than a new one.
Repair option: send in your faulty unit for component-level repair — $270.00 with free diagnostics, a 2-year warranty, and a 5–30 business day turnaround. Repair typically costs 40–70% of a new unit, saving you 30–60%. Learn more about our Siemens repair service.
3TK2825-1BB40 at a glance
| Part Number: | 3TK2825-1BB40 |
| Manufacturer: | Siemens |
| Voltage: | 24 Vdc |
| Current: | 6 AMP |
| Power: | 3 SAFETY CONTACTS |
| Type: | Safety Relay |
| Safety: | Safety relay - up to SIL 3 (IEC 61508) / PL e (ISO 13849-1) |
| Enclosure: | IP20 |
3TK2825-1BB40 FAQ
What should I match before swapping in a 3TK2825-1BB40?
Compare the rating plate on your existing unit with this one. Confirm the 24 Vdc voltage rating, the 6 A current rating and the 3 safety contacts, and make sure the part number is identical before you rewire the safety circuit.
Should I buy a refurbished or brand new Siemens 3TK2825-1BB40?
The refurbished 3TK2825-1BB40 is in stock and costs less. A brand new unit is available on request if your plant's maintenance standards require factory-new safety components.
Can I trade in a failed 3TK2825-1BB40 contactor?
Yes. Use the Trade-In button on this page for a free evaluation. Any credit is applied toward your purchase.
Compatible alternatives
Equivalent units from other manufacturers — all in-stock at Flexa, covered by the same 2-year warranty.









