Zoeller BN53 Automatic Submersible Sump Pump 1/3 HP
- 1/3 HP oil-filled sealed motor
- Cast iron switch case, motor and pump housing
- Passes 1/2 inch particles, vortex impeller
- Tethered float switch, automatic
- 115V with thermal overload protection
- 23 pounds
Updated 5 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A cast iron automatic sump pump with an oil filled motor and tethered float for basement pits. The listing gives no flow rate, lift height or warranty, and a tethered float needs room in the pit.
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ASIN: B00PM8W09OModel: BN53-0032Category: Sump Pumps
Overview
Zoeller builds this submersible sump pump with a cast iron housing and an oil filled motor that sheds heat into the surrounding water. A tethered float switches it on as the pit fills, and a vortex impeller passes small debris.
Cast iron and an oil cooled motor suit pits that run often. The listing omits gallons per hour and lift height, so sizing against your discharge height takes a trip to the maker's chart.
Who it's for
Homeowners with wet basements and standard pits will get a durable automatic pump. Narrow pits or tall discharge runs need a model sized for those conditions.
Pros and cons
- Cast iron housing sheds heat
- Oil filled sealed motor
- Thermal overload protection
- Non-clogging vortex impeller
- Flow, lift and warranty not listed
- Tethered float needs pit width
Performance notes
Pumping capacity depends on discharge height, which the listing does not chart. The oil filled motor and cast iron housing carry heat away, which matters on long run cycles. The tethered float sets on and off levels through its swing.
Specifications
| Brand | Zoeller |
|---|---|
| Model | BN53-0032 |
| Dimensions & fit | |
| Max particle size | 1/2 inch |
| Item weight | 23 pounds |
| Power & efficiency | |
| Horsepower | 1/3 HP |
| Voltage | 115V (specs list 120 volts) |
| Power Source | Ac/dc |
| Construction & materials | |
| Material Type | Cast iron, plastic base |
| Color | Green |
| Included components | |
| Included Components | Product only |
| Unit Count | 1 Count |
| Other details | |
| Switch | Tethered float, automatic |
| Protection | Thermal overload |
| Impeller | Non-clogging vortex |
| Product Style | Model 53 |
Frequently asked questions
How do I maintain the Zoeller BN53?
The listing gives no service schedule. Keep the tethered float free to swing and clear debris from the pit to protect the impeller.
How much water does the Zoeller BN53 pump per hour?
The listing does not give a flow rate or maximum lift. Check Zoeller's performance chart for your discharge height.
Is the Zoeller BN53 automatic?
Yes. A tethered float switch turns it on and off.