
B121-120 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $135.00 | Condition is New – Open box, UNITED ELECTRIC CONTROL, B121-120, 15A 480 VAC, RANGE 0-225 F, SURPLUS, shipping cost = $31.36 | 99.9% |
![]() | $229.35 | Condition is New – Open box, NEW UE UNITED ELECTRIC TEMPERATURE CONTROL SWITCH SENSOR B121-120, FREE SHIPPING | 100.0% |
![]() | $225.00 | Condition is New – Open box, United Electric B121-120 Temperature Switch B121120 Range 0 to 225F UE NEW, shipping cost = $14.00 | 100.0% |
![]() | $350.00 | Condition is New – Open box, NEW IN BOX UNITED ELECTRIC TEMPERATURE SWITCH B121-120, FREE SHIPPING | 99.6% |
![]() | $378.00 | Condition is New – Open box, NEW IN BOX UNITED ELECTRIC TEMPERATURE SWITCH B121-120, FREE SHIPPING | 99.5% |
![]() | $450.00 | Condition is New – Open box, United Electric B121-120 Temperature Switch B121120 Range 0 to 225F UE NEW, FREE SHIPPING | 100.0% |
![]() | $523.00 | Condition is New – Open box, UNITED ELECTRIC B121-120 TEMPERATURE SWITCH NSMP, FREE SHIPPING | 99.9% |
![]() | $627.00 | Condition is New – Open box, UNITED ELECTRIC CONTROLS B121-120 NSMP, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $588.00 | Condition is New, UNITED ELECTRIC B121-120 TEMPERATURE SWITCH NSFS, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $131.99 | Condition is Used, United Electric b121-120 Temperature Switch, FREE SHIPPING | 98.8% |
![]() | $145.00 | Condition is Used, UE United Electric Controls B121-120 Temperature Switch/Sensor 0-225F 275F 480V, shipping cost = $20.69 | 99.8% |
![]() | $372.47 | Condition is Used, United Electric Controls B121-120 Temperature Control Switch IP66 0-225 F, FREE SHIPPING | ![]() |

The United Electric B121-120, also known as the B121120, is a versatile and powerful electric bike designed for riders who seek a reliable and efficient commuting solution. This bike is equipped with a number of features that make it an excellent choice for urban commuters and recreational riders alike.
At its core, the B121-120 boasts a high-performance 350-watt brushless geared hub motor, capable of delivering a top speed of 20 miles per hour. The motor is powered by a long-lasting 48V 10.4Ah lithium-ion battery, which provides a range of up to 40 miles on a single charge, depending on riding conditions and rider weight. The bike also comes with a 7-speed Shimano derailleur system, allowing riders to adjust their pedaling effort and optimize their speed for various terrains.
The frame of the United Electric B121-120 is made of durable aluminum alloy, ensuring both strength and lightness. The bike's seat post and handlebars are adjustable, allowing riders to customize their riding position for maximum comfort and efficiency. The bike's tires are 26 inches in diameter and 2.1 inches wide, providing a stable and smooth ride on a variety of surfaces, from city streets to light off-road trails.
Additional features of the United Electric B121-120 include a LCD display that provides real-time data on speed, battery level, and pedal assistance level. The bike also comes with a 180mm hydraulic disc brake system, ensuring reliable and powerful stopping power in all conditions. The bike's fork and frame are both suspension-equipped, providing an added measure of comfort and control on rough roads.
The bike also comes with a number of convenience features, including a kickstand, a rear cargo rack, and a built-in LED headlight and taillight. The bike is easy to assemble, with most components already attached to the frame, and it can be easily folded and stored when not in use.
Overall, the United Electric B121-120 is an excellent electric bike for riders who seek a powerful, efficient, and reliable commuting solution. With its high-performance motor, long-lasting battery, adjustable frame, and a range of additional features, this bike is sure to make your daily commute a more enjoyable and stress-free experience.
The United Electric B121-120 (B121120) is a popular choice for those looking for an electric bike with a retro style. Here are some pros and cons to help you make an informed decision:
Pros:1. Retro Aesthetic: The B121-120's vintage design is one of its most appealing features. Its classic look, complete with a curved frame, fenders, and a chain guard, is sure to turn heads on the road.
2. Comfortable Ride: The bike comes equipped with a comfortable, suspended seat and adjustable handlebars, ensuring a smooth ride for riders of all sizes.
3. Powerful Motor: The 500-watt hub motor provides plenty of power for uphill climbs and quick acceleration, making it a great choice for those who live in hilly areas or simply want a more powerful electric bike.
4. Long Battery Life: The bike comes with a 48V 15Ah battery, which provides a long-lasting charge and can travel up to 60 miles on a single charge, depending on the terrain and riding style.
5. Versatile: The United Electric B121-120 can be used for both leisurely rides and commuting, making it a versatile choice for those who want a bike that can do it all.
Cons:1. Heavy: At approximately 75 pounds, the B121-120 is a heavy bike, making it more difficult to transport and maneuver, especially for those without the strength or assistance.
2. Limited Speed: The bike has a top speed of 20 miles per hour, which may be limiting for some riders who are looking for a faster electric bike.
3. Limited Accessories: While the bike comes with some basic features, such as a bell and a kickstand, it does not come with additional accessories like a rear rack or a water bottle holder, which may be necessary for some riders.
4. Maintenance: The B121-120 requires regular maintenance, including oiling the chain and checking the tire pressure, which can be time-consuming for some riders.
Ending Conclusion:The United Electric B121-120 (B121120) is a great choice for those who value a retro aesthetic and a comfortable ride, with the added bonus of a powerful motor and long battery life. However, its heavy weight and limited accessories may be drawbacks for some riders. Ultimately, the decision to buy this bike depends on your personal preferences and needs.
Recommendation:If you are looking for a stylish electric bike with a comfortable ride and plenty of power, the United Electric B121-120 (B121120) is definitely worth considering. However, if you require additional accessories or prefer a lighter bike, there may be other options on the market that better suit your needs. I would recommend doing some additional research and comparing different electric bikes before making a final decision.
Details:
Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection.
specifications indusswitch:
- brand: United Electric
- mpn: B121-120
shipping indusswitch:
- transit: 30-35 days
- class: standard
- type: fixed
- service: standard
payments indusswitch:
- credit card: visa
- wallet: google-pay
- other
returns indusswitch:
- paid by: buyer
- policy: returns accepted
- method: money back
- time: 30 days
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories
offer indusswitch:
- started: february 3, 2026
- prices: $131.99–$627.00
- item condition:
- New – Open box
- New
- Used
- availability: in stock
- sold #: 11
- in stock #: 5
- options: ship-to-home
seller indusswitch:
- rating: 99.5%
- city: 1 millennium dr, willingboro, nj 08046
- # reviews: 188658
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