SKU: 66974922744

Tsurumi LB-800A Automatic Submersible Dewatering Pump 1 HP 115V 2 Inch Discharge Smart Relay Electrode Switch 82 GPM 4920 GPH Slimline Design

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Description

Tsurumi LB-800A Automatic Submersible Dewatering Pump 1 HP 115V 2 Inch Discharge Smart Relay Electrode Switch 82 GPM 4920 GPH Slimline DesignMaster Confined Space Dewatering with Tsurumis Intelligent Automatic Slimline Pump Technology When failure is not an option on the job site, the Tsurumi LB 800A Automatic Submersible Dewatering Pump sets the industry standard for reliability and performance. This 1 HP powerhouse is specifically engineered for construction, municipal, and high demand rental applications where space is at a premium. Its innovative "Slimline" design features a diameter

Master Confined Space Dewatering with Tsurumi’s Intelligent Automatic Slimline Pump Technology

When failure is not an option on the job site, the Tsurumi LB-800A Automatic Submersible Dewatering Pump sets the industry standard for reliability and performance. This 1 HP powerhouse is specifically engineered for construction, municipal, and high-demand rental applications where space is at a premium. Its innovative "Slimline" design features a diameter of less than 9 inches, allowing it to fit into pipes as narrow as 8 inches, manholes, and tight excavations where traditional pumps simply cannot go. Moving an incredible 4,920 gallons per hour, the LB-800A is the professional choice for rapid water removal in deep foundations and turbulent environments.

The LB-800A is a "smart" dewatering solution featuring an advanced electrode relay switch. This floatless technology automatically starts and stops the pump by detecting water levels, eliminating the mechanical snags and failures common with traditional tethered floats in cramped conditions. To ensure extreme durability, the pump is built with a urethane semi-vortex impeller and Tsurumi’s patented oil lifter system, providing continuous lubrication to the dual silicon carbide mechanical seals. The top-discharge design forced-cools the motor using the pumped water, allowing for continuous-duty operation and providing superior dry-run capability, making it the most resilient dewatering tool in your inventory.

Key Features

  • Intelligent Automatic Operation: Floatless electrode relay switch detects water levels to start the pump, featuring an internal timer to prevent rapid on/off cycling in rough water.
  • High-Volume Performance: Robust 1 HP motor delivers a massive 82 GPM (4,920 GPH) with an impressive maximum head lift of 59 feet.
  • Slimline Confined Space Design: Compact 8-3/4" diameter allows for easy deployment into 8-inch pipes and narrow manholes.
  • Superior Cooling System: Top-discharge flow-through design uses pumped water to cool the motor, enabling continuous duty and dry-run protection.
  • Industrial Grade Durability: Equipped with a wear-resistant urethane semi-vortex impeller and dual internal mechanical seals with silicon carbide faces.
  • Patented Oil Lifter: Provides consistent lubrication and cooling to seal faces, even if oil levels fall, ensuring a long, trouble-free service life.
  • Extended Reach: Includes a 50-foot heavy-duty power cord for maximum flexibility across large construction and utility sites.

What's Included

  • (1) Tsurumi LB-800A 1 HP Automatic Submersible Pump
  • (1) Integrated Electrode Relay Switch (Automatic)
  • (1) 50-Foot Heavy-Duty Power Cable
  • (1) 2-Inch NPT Discharge Connection

Specifications

Brand Tsurumi Pump
Model Number LB-800A-61
Horsepower 1 HP
Voltage 115V
Discharge Size 2 Inches NPT
Max Flow Rate 82 GPM (4920 GPH)
Max Head Lift 59 Feet
Pump Diameter 8-3/4 Inches
Cable Length 50 Feet
Impeller Type Urethane Semi-Vortex
Operation Type Automatic (Electrode Relay)
Dry-Run Capable Yes

Pro-Tip: To achieve maximum flow and prevent backpressure on the motor, always use a high-quality 2-inch reinforced discharge hose. For the fastest setup in municipal or emergency response applications, equip your discharge with aluminum cam-lock (quick-connect) fittings to ensure a leak-proof, secure connection in seconds under high-pressure conditions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 66974922744

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4.8 ★★★★★
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Verified Purchase
Mark
Charlottesville, US
★★★★★ 1
Poor quality junk
Poor quality. Does not work as advertised. Do not buy this junk.
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Reviewed in the United States on May 14, 2026
J
Verified Purchase
J. Chin
Houston, US
★★★★★ 3
good on 16-inch MacBookPro and ThinkPad but not 13-inch MacBookPro; intermittent USB 3.2 connections
UPDATE 2025-NOV - lowering to 3-stars: Found that only the 2nd USB-C from the right is truly USB 3.2 compliant. Using the same SSD and same USB-C 3.2 cable, only the 2nd port from the right connects at 10Gbps speeds for RTL9210B-chipset enclosure SSDs (and I have tested with 4 different ones). The other 2 ports on this Anker adapter are intermittent, sometimes they connect the SSD as USB 3.0 and sometimes it connects as USB 2.0, for the same SSDs. The odd thing (as possible workaround) is that if we use a USB-C to USB-A female adapter and then use a USB-A to USB-C cable to the same SSD, it now connects at USB 3.0 speed on any of the ports, but transfers only at 5Gbps throughput. Another annoying thing is, this Anker adapter, even after the firmware upgrade, still intermittently "sleeps" or "goes offline" and disconnects from the laptop (does this on both my MacBook and ThinkPad). It does automatically reconnect after a few seconds, but very annoying, and can possibly corrupt drives that are connected when it happens. ORIGINAL REVIEW - 4 stars: USB-C hub is fast, able to transfer 5+ Gbps to SSD. Video display quality is OK for 1440p (when it works). DisplayPort video worked on ThinkPad and 16-inch MacBookPro, but not on 13-inch MacBookPro; connecting to a USB-C connected monitor (video worked without this Anker adapter). USB-C cable length to host computer is long enough. Worth the $30 price I paid ... yes; it served the purpose of having a USB-C hub while still being able to use the USB-C port for DisplayPort video; overall good design.
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Reviewed in the United States on September 10, 2025
S
Verified Purchase
Sam
Lexington, US
★★★★★ 4
Video output does not contain power — caveats and findings for Switch users to whom this may concern
The product works with some caveats, which I initially tried to resolve with an ultimately unsuccessful firmware upgrade. (Anker was responsive via email, much appreciated.) It turns out the product was working to the best of its abilities this whole time, which I will now expound upon. I expect that perhaps another 4-5 people in the world intended to use this in the ways that I did, namely with a Nintendo Switch as the source to various output devices. If you are one of these people who are interested in reading my experience connecting this hub with a Nintendo Switch, my findings are below (after a brief primer). A Brief Primer 1. As you know, the Nintendo Switch can be coaxed to output Dp-Alt video if you can satisify a 39W+ handshake (15V, 2.6A or higher) 2. There are other adapters that will do this and output the video (with ample power) over USB-C, which are useful for powering AR glasses, portable monitors, or desktop USB-C monitors. 3. The limitation of a USB-C Dp-Alt adapter is that it does not also provide USB data ports like the Switch Dock itself, while many USB-C to HDMI dongles include USB-A ports. (But we don't want HDMI out, of course, because using USB-C we can power AR glasses or a portable monitor and send the video signal with one cable.) 4. I surmised that, by chaining a USB-C Dp Alt Adapter to this one (Anker A8340), I could have video output and three USB-C ports. Why do I want USB-C data ports? Since you are like me, you already know it is so I can connect a UAC1 DAC to output USB Audio and power thirsty headphones via a 4.4mm Pentacon balanced headphone jack. I also don't need to convince you of the merits of this versus using the Switch's built in 3.5mm headphone jack. Or say, connecting a wired controller because I don't care for input latency if I can avoid it. My Findings 1. This hub can indeed be chained to a USB-C Dp-Alt adapter and pass through a video signal while also leaving three USB 3.2 data ports for wired devices (yes!) 2. However, as other reviews kindly mention, the video signal outputted by the A8340 does not contain power of any sort. So, if you are intending to plug this into a desktop USB-C monitor which already has/doesn't need power, then everything is awesome. 3. If you are trying to power AR glasses, this won't work unless you add a second USB-C DP-Alt adapter after it, and provide power that way. If you intend to convert the video signal to HDMI or DisplayPort via a USB-C to HDMI or DP cable, these won't work because there is no power for the inline conversion. 4. If you are using a USB-C travel monitor, this will work provided you directly power the monitor via its second USB-C power (if it has one). So in summation, it's possible to get what you want, though you may find the victory pyrrhic. The perfect adapter (which I had hope this was, and may yet exist at a higher price point) basically takes a USB-C Dp-Alt adapter, adds USB-C data ports, and outputs USB-C + power to power AR glasses or a travel monitor. This device nevertheless has its uses, such as the ability to connect multiple USB-C devices to the Switch in handheld mode and charge it, too.
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Reviewed in the United States on January 30, 2025
J
Verified Purchase
Johnny Decay
Belleville, US
★★★★★ 5
Simple and reliable. No Flaws.
Flawless performance so far. I use this item with my iMac, and I'm able to run a 12 channel music interface through it with no noticeable lag.
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Reviewed in the United States on February 27, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
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Reviewed in the United States on May 20, 2026

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