For Reference Only
| Part Number | W51-A121B1-20 |
| LIXINC Part # | W51-A121B1-20 |
| Manufacturer | TE Connectivity Potter & Brumfield Relays |
| Category | Circuit Protection Devices › Circuit Breakers |
| Description | CIR BRKR THRM 20A 125VAC 50VDC |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | W51-A121B1-20 PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Jan 25 - Jan 29 2026(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | W51-A121B1-20 |
| Brand: | TE Connectivity Potter & Brumfield Relays |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Circuit Protection Devices |
| Subcategory: | Circuit Breakers |
| Manufacturer: | TE Connectivity Potter & Brumfield Relays |
| Series: | W51 |
| Package: | Tray |
| Part Status: | Active |
| Mounting Type: | Panel Mount |
| Breaker Type: | Thermal |
| Current Rating (Amps): | 20A |
| Voltage Rating - AC: | 125 V |
| Voltage Rating - DC: | 50 V |
| Actuator Type: | Rocker |
| Number of Poles: | 1 |
| Illumination: | Red |
| Illumination Voltage (Nominal): | - |
| Approval Agency: | - |
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| In Stock | 12628 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $5.34000 | $5.34 |
| 5 | $5.16902 | $25.8451 |
| 10 | $5.00052 | $50.0052 |
| 50 | $3.98307 | $199.1535 |
| 200 | $3.38985 | $677.97 |
| 400 | $3.30510 | $1322.04 |
| 600 | $3.07205 | $1843.23 |
Lixinc will offer the most competitive prices for you, please refer to the quotations.
Please feel free to contact us for details.