Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Extreme Networks SDR-240-48 Power SupplyThe Extreme Networks SDR 240 48 Power Supply is a robust, DIN rail mounted power solution engineered for reliable performance in demanding network environments. This 240 W unit delivers a steady 55 V DC output, providing clean, stable power to a wide range of network devices while fitting neatly into standard equipment cabinets. Built for industrial use, it combines compact form factor with durable construction to support continuous operation in data
The Extreme Networks SDR-240-48 Power Supply is a robust, DIN rail-mounted power solution engineered for reliable performance in demanding network environments. This 240 W unit delivers a steady 55 V DC output, providing clean, stable power to a wide range of network devices while fitting neatly into standard equipment cabinets. Built for industrial use, it combines compact form factor with durable construction to support continuous operation in data centers, telecom closets, and edge deployments.
- High-capacity 240 W continuous output. Designed to power multiple devices or high-demand equipment in congested racks, the SDR-240-48 ensures ample headroom for even demanding configurations. Its generous power reserve helps prevent voltage droop during surge conditions or transient load spikes, keeping critical networking gear running without interruption.
- Global input compatibility for versatile deployments. The power supply accepts a broad range of input voltages including 120 V AC and 230 V AC, as well as DC inputs at 124 V DC and 370 V DC. This versatility makes it ideal for multinational installations, field upgrades, or mixed-power environments where equipment may be relocated or repurposed across regions without needing adapters or separate power rails.
- 55 V DC output designed with safety in mind. A 55 V DC output provides a safer, lower-risk power delivery to sensitive networking gear, helping to minimize shock hazards while still delivering robust performance. The regulated 55 V DC output supports consistent operation for a range of switches, routers, and telecom appliances, reducing the likelihood of voltage-related equipment resets or instability.
- DIN rail mounting for fast, tool-free installation. The SDR-240-48 is purpose-built for DIN rail integration, enabling quick installation in standard telecom and IT enclosures. The compact footprint saves valuable cabinet space, and its modular design simplifies field servicing and future upgrades, making it easier to scale your network power infrastructure as requirements evolve.
- Energy-efficient design lowers cooling costs and extends equipment life. With a focus on high efficiency, this supply minimizes heat generation within the cabinet, reducing the burden on cooling systems and contributing to a more stable thermal environment. The improved thermal performance can extend the lifespan of connected devices and decrease total cost of ownership over time.
Technical Details of Extreme Networks SDR-240-48 Power Supply
- Product type: DIN Rail Power Supply
- Model: SDR-240-48
- Brand: Extreme Networks
- Input voltage range: 120 V AC, 230 V AC, 124 V DC, 370 V DC
- Output voltage and power: 55 V DC, 240 W
- Mounting: DIN Rail compatible for quick installation in standard enclosures
- Efficiency and protection features: High-efficiency design intended to minimize waste heat and optimize energy usage (specific efficiency ratings may vary by configuration and regional standards)
- Applications: Suitable for powering a variety of networking devices, including switches, routers, and other network infrastructure components that require reliable DC power
How to install Extreme Networks SDR-240-48 Power Supply
- Prepare the enclosure: Ensure the equipment rack or cabinet has adequate space and proper airflow to accommodate the SDR-240-48 and its load. Confirm that the enclosure is grounded and compliant with local electrical safety standards.
- Power down and isolate: Before handling any power connections, switch off all power sources to the chassis and disconnect from the main power supply to prevent accidental energization.
- Mount on DIN rail: Align the SDR-240-48 with the DIN rail in the enclosure and secure it using the appropriate mounting clips or screws. Verify that the unit is firmly seated and does not slide along the rail.
- Connect input power: Attach the appropriate input connectors for your region (120 V AC or 230 V AC, or the designated DC input). Ensure correct polarity for DC inputs and use proper wire sizing and cable management to minimize resistance and heat buildup.
- Wire the output to your load: Connect the 55 V DC output to the power input terminals of your networking devices, observing correct polarity and using secure, rated connectors. Route cables to prevent interference and maintain tidy cable management within the enclosure.
- Inspect and test: Double-check all connections for tightness and correct routing. Reconnect the main power, power on the system, and verify that the SDR-240-48 powers up correctly and delivers stable 55 V DC to the connected devices. If available, monitor device indicators or use a multimeter to confirm voltage stability.
Frequently asked questions
-
Q: What devices can the SDR-240-48 power?
A: It is designed to provide 55 V DC power to networking equipment such as switches, routers, and other DC-powered devices that require a reliable 240 W supply. Always verify device voltage and current requirements against the unit’s 55 V DC, 240 W capability to ensure compatibility. -
Q: Does this power supply support both AC and DC inputs?
A: Yes. The SDR-240-48 supports multiple input configurations, including 120 V AC, 230 V AC, as well as DC inputs at 124 V DC and 370 V DC, enabling flexible deployment in diverse environments around the world. -
Q: Is the power supply suitable for DIN rail installations?
A: Absolutely. The SDR-240-48 is specifically designed for DIN rail mounting, providing a compact, space-saving power solution ideal for telecom closets, data centers, and industrial IT racks. -
Q: What are the safety benefits of a 55 V DC output?
A: A 55 V DC output reduces safety risks while delivering stable, regulated power to sensitive equipment. This voltage level is commonly used in many networking devices, balancing performance with safety in enterprise environments. -
Q: Can the SDR-240-48 help reduce energy costs?
A: Yes. Its high-efficiency design minimizes waste heat, which can lower cooling requirements in dense cabinets and reduce overall energy consumption over time without compromising performance.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1119 reviews
Sort
Product Reviews
★★★★★ 5
Excelente
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
★★★★★ 5
Great way to control TV and radio in one room from an easy chair in another room!
I help a 96 year old blinded vet with tech support -- and as his health worsens, needed to make his TV, his radio, and the audio switch that selects what audio should go into his hearing aids via Bluetooth work from his easy chair in his living room. All the equipment is in his bedroom. This IR repeater system installed quickly and easily and works perfectly. Now he can summon ball games, news, or whatever he wants without fear of getting up and falling down. A perfect solution!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Magic!!!
I am no tech expert but these little guys are magic! We had just put in a wall of built-ins and desperately wanted to hide our cable box behind a cabinet, but with it being infrared this would not work without these little repeaters! First off I just have to say that the Sewell customer service is off the charts. You actually get to speak to a real person right away, no annoying menu after menu trying to get help. They helped us so much when we hit a couple snags. Here are a couple things that I figured out that I hope will help others. First you can hide both of these little discs, they both come with tiny little eyes that can attach to your tv and cable box or whatever you are trying to use them for, and they are nearly invisible. Second, don’t get nervous when you plug them into the power outlet and the lights don’t come on, this is ok and they aren’t supposed to stay on, they kind of blink here and there, and only when you use your remote. Third, we have an Altice One cable box (not the mini, just a regular cable box) and it was impossible to find the eye to attach the emitter’s eye (Side note: we had to put the emitter disc on top of the cable box because we couldn’t fit the emitter disc pointing in front of cable box. The directions give you both options though and you can basically put it anywhere as long as the eyes attach). The phone trick did not work on this particular cable box. But after trying about a dozen different spots on the front of the box we finally got it to work by putting the eye right on where the digital clock numbers are. I put it basically right on top of the colon (:). Cable vision was no help with this so I hope this can save others from our frustration. After we found the eye everything came together and worked perfectly! No more do we need to keep the cabinet open to change channels… it’s a miracle!!! Hope these little guys work forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2022
★★★★★ 4
Good product, expensive price, poor adhesive
Premium packaging for a premium device. Useful for IR remote signal delivery with extra functions on the side. Price though is luxury for it’s use. Used this for a Logitech Harmony hub control of an non-smart electric fireplace. Setup is a breeze but only if you’re tech savvy. Highly recommend to watch the YouTube video for information on all it’s application. There a many other cheaper devices similar to this available on Amazon that I could have used for the same application. If you have a need for multiple control within the same vicinity of other devices, this may be more useful for you. However, if you plan on utilizing an IR repeater/extender for only a single device and would like to save some money, don’t buy this one. This device works quite well though. Have had no issues achieving the effect needed. Only four stars due to the poor adhesive on the emitter attachment. As stated earlier, I used this on an electric fireplace with a glass surface. I used the attachable emitter to the front glass sensor where the IR receiver was located on the fireplace. After only one day, the emitter attachment fell off even though I made sure the glass was thoroughly cleaned prior to adhering it. Otherwise a good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2019
★★★★★ 5
Denon avr ir remote port works great with sewell products
I bought a new entertainment center with glass doors and wasn't getting good signal range with the door closed. Plus i couldnt get a good of line site, since this cabinet was shorter than the orginal, and the location for my avr was further to the left than before and now my line of sight to the receiver was blocked from other parts of the room due to high couch back.
I tried a couple different cheap $10 devices that used stick on transmitters/receiver buttons but they were clumsy and didn't provide me a total solution for my room layout.
Works fantastic with a denon x1800 receiver (and many other models). It works directly with the denon's ir remote port in the back of the avr port. The solution is actually quite simple.
Plug a stereo 3.5 mm male to male plug in the denon ir port in the back of the avr and and the other end to the orange emitter box(puck). The pics are about the size of an oreo double stuff cookie Tuck the orange box/puck away whereever and plug the power in. The box doesn't need to seen or be pointed towards anything. It's location is only limited by the length of your stereo cable and access to AC power
Put the blue box puck anywhere in the room where you have general line of sight to it from where you will be using your remote, and plug power in. In my case, its sitting on top of one of my tower speakers. From there it clears the back of the couch and can see from the family room, eat-in kitchen area, and the kitchen beyond.
Done.
I didn't need or use any of the included emitter or transmitter cables, though if you dont have a denon, or other brand avr with an ir port to plug into , or also want to hide the blue puck ( in which case attach the included sensor cable), you'll need them. But for denon users with an ir port, you just use the two pucks and their usb power adapters. Simple.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026