
NR421 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $99.95 | Top Pick! Condition is New, Siemens NR421 Series A Fusible Vacu-Break Enclosed Disconnect Switch **NOS**, FREE SHIPPING | ![]() |
![]() | $100.00 | Condition is New, Siemens NR-421. 3R, shipping cost = $15.73 | 97.8% |
![]() | $115.00 | Condition is New, HOUSTON STOCK NEW SIEMENS NR421 DISCONNECT SWITCH 30A 240V NEMA 3R FREE SHIPPING, FREE SHIPPING | 100.0% |
![]() | $308.75 | Top Pick! Condition is New, Siemens NR421R - 30A General Duty Enclosed Switch, Same Day Shipping, New, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $20.71 | Condition is Used, Siemens 581369 Control Board Orginal Electronics AZ234951 NR421, FREE SHIPPING | 99.0% |
![]() | $49.99 | Condition is Used, I-T-E SIEMENS NR421 DISCONNECT SWITCH 30A 240V NEMA 3R 3 Phase 3HP 7.5HP Charity, FREE SHIPPING | 99.4% |
![]() | $78.97 | Top Pick! Condition is Used, I-T-E SIEMENS NR421 Enclosed Switch 30A 240V 3 Phase Type 3R Indoor/Outdoor Box, shipping cost = $14.48 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $40.00 | Condition is New – Open box, I-T-E SIEMENS NR421 Enclosed Switch 30A 240V 3 Phase Type 3R Indoor/Outdoor Box, FREE SHIPPING | 100.0% |
![]() | $28.00 | Condition is New – Open box, I-T-E SIEMENS NR421 Enclosed Switch 30A 240V 3 Phase Type 3R Indoor/Outdoor Box, shipping cost = $20.00 | 100.0% |
![]() | $325.00 | Condition is New – Open box, SIEMENS NR421R SER. A NSMP, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $22.84 | Condition is Neu: Sonstige (siehe Artikelbeschreibung), 3pcs Relay No421 Siemens V23080-B1007-A302 24V 1 NO BISTABLE 16Amp, shipping cost = $46.41 | 99.9% |



The Siemens NR421 i-t-e Disconnect Switch is a robust and reliable electrical device designed for a variety of applications, including charity events and other electrical needs. This 30A switch is capable of handling 240 volts and is compatible with Nema 3R enclosures, making it suitable for indoor or outdoor use in damp or dry locations.
The Siemens NR421 is engineered with a phase-3HP motor, ensuring smooth and efficient operation. It features a handle that is easy to operate, even with gloves on, and is designed to withstand frequent use. The switch is also equipped with a manual reset mechanism, which allows for safe and easy resetting in the event of an overload or short circuit.
The Siemens NR421 is built to last, with a high-quality, corrosion-resistant construction that can withstand harsh environments. It is UL listed and meets all relevant safety standards, providing peace of mind for users. With its powerful and reliable performance, the Siemens NR421 i-t-e Disconnect Switch is an excellent choice for any electrical application, especially for charity events and temporary power needs.
Pros of purchasing a Siemens NR421 I-T-E Disconnect Switch 30A 240V Nema 3R:1. High-quality material: Siemens is a reputable brand known for producing durable and reliable products. This disconnect switch is made from high-quality materials, ensuring long-lasting performance.
2. Safety features: The switch is equipped with safety features such as overcurrent protection and ground fault protection, ensuring safety while in use.
3. Easy installation: The Nema 3R rating means the switch is suitable for outdoor use, and it has a compact design that makes it easy to install.
4. Versatile: The switch can handle up to 3HP and 7.5HP loads, making it suitable for a wide range of applications.
Cons of purchasing a Siemens NR421 I-T-E Disconnect Switch 30A 240V Nema 3R:1. Price: Compared to some other brands, Siemens products can be more expensive. This switch may be pricier than some other options on the market.
2. Limited customization: While the switch is versatile, it may not offer as many customization options as some other models.
Recommendation:If you are looking for a reliable and durable disconnect switch for your outdoor electrical application, the Siemens NR421 I-T-E Disconnect Switch 30A 240V Nema 3R is a great option. The safety features, ease of installation, and versatility make it a worthwhile investment, even if it is a bit more expensive than some other options. However, if you are on a tight budget, you may want to consider other options that offer similar functionality at a lower price point. Ultimately, the best choice for you will depend on your specific needs and budget.
Details:
What you see is exactly what you'll receive. Hazardous voltage , will cause severe injury or death. Turn off switch before removing or installing fuse. Suitable for use as service equipment.
Vac-break switch with contacts. Type 3r indoor/outdoor.
specifications indusswitch:
- brand: Siemens
- mpn: Nr421
- port type: Power
- type: Nr
- current rating: 30a
- coil voltage: 240v
- fuse type: Switch
- material: Metal
- suitable for: Exterior, Interior, Wall, Nema 3r
returns indusswitch:
- policy: no returns
seller indusswitch:
- rating: 99.3%
- # reviews: 2312
- city: madison, wisconsin
payments indusswitch:
- wallet: apple-pay
- other
- cash
- credit card: discover
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories
shipping indusswitch:
- class: economy, expedited
- service: economy, usps priority mail, usps priority mail express flat rate envelope
- type: fixed
- carrier: usps
- transit: 4-9 days
offer indusswitch:
- in stock #: 5
- availability: in stock
- sold #: 23
- options: ship-to-home
- prices: $22.84–$325.00
- item condition:
- New
- Used
- New – Open box
- Neu: Sonstige (siehe Artikelbeschreibung)
- started: november 11, 2024
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