Siemens 3RU21261FB0 IEC Thermal Overload Relay
The SIEMENS Overload Relay is a three-pole IEC thermal overload relay with frame size S0, featuring integrated bimetallic elements and auxiliary contact form 1NO/1NC. It has a maximum voltage rating of 690V AC and…
SKU 3G-OTH-39641
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS Overload Relay is a three-pole IEC thermal overload relay with frame size S0, featuring integrated bimetallic elements and auxiliary contact form 1NO/1NC. It has a maximum voltage rating of 690V AC and uses screw terminals. This relay is compatible with SIRIUS contactors of frame size S0 and does not include phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RU21261FB0 overload relay used for?
The SIEMENS 3RU21261FB0 is a three-pole IEC thermal overload relay used to protect motors from overcurrent and phase imbalance. It is designed for industrial applications requiring reliable thermal protection, compatible with SIRIUS contactors of frame size S0. The integrated bimetallic elements eliminate the need for separate thermal units.
What are the specifications of the SIEMENS 3RU21261FB0 overload relay?
The SIEMENS 3RU21261FB0 overload relay has frame size S0, auxiliary contact form 1NO/1NC, maximum voltage rating 690V AC, and screw terminals. It includes integrated bimetallic elements and does not offer phase loss sensitivity. It is compatible with SIRIUS contactors of frame size S0.
Where to buy the SIEMENS 3RU21261FB0 overload relay worldwide?
You can source the SIEMENS 3RU21261FB0 overload relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this Siemens thermal protection relay.
How to select the correct SIEMENS overload relay for a motor?
To select the correct SIEMENS overload relay, match the frame size (S0) and voltage rating (690V AC) to your contactor series (SIRIUS). Ensure the auxiliary contact form (1NO/1NC) meets your control circuit needs. The integrated bimetallic elements provide thermal protection without separate units. Consult the motor full-load current for proper setting.
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3G Electric supplies Siemens iec thermal overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
