✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
SJE PumpMaster® SPDT 13 Amp Wide Angle Pump Float Switch, Three-Wire Setup for 120/240V Pumps, Adjustable 7"-36" Range
Mechanically-Activated Wide Angle Float Switch for Automatic Pump Control
SJE PumpMaster SPDT sump pump float switch is a professional-grade, wide-angle float switch designed for reliable automatic pump control in demanding water and wastewater systems. Built with a 3-wire float switch (SPDT) configuration, this unit can be wired for both pump-up and pump-down applications, making it one of the most versatile pump float switches available.
Cleanflow ships across Canada and the USA with fast, reliable delivery so you get the float switch you need, when you need it.
What Is an SPDT Float Switch?
An SPDT (Single Pole Double Throw) float switch allows you to control two different pump actions using one device:
- Pump Down (Normally Open) – Drains water from a tank or sump
- Pump Up (Normally Closed) – Fills a tank or basin
This means one sump pump float switch can handle both operations depending on how it’s wired, reducing the need for multiple switches and simplifying your system.
What This SJE PumpMaster Float Switch Does
This float switch automatically turns your pump on or off based on liquid level inside a tank or pit. As the float rises and falls with water or sewage levels, it activates internal contacts to control pump operation.
It is commonly used in:
- Septic tanks and sewage pits
- Lift stations and wastewater systems
- Water storage tanks
- Industrial liquid handling systems
Unlike basic float switches, the SJE PumpMaster SPDT is designed for direct pump control, not just signal or control panel applications.
Built for Demanding Pump Applications
The SJE PumpMaster is designed for real-world pump loads—not light-duty control circuits.
- Maximum running current: 13 amps
- Maximum starting current: 85 amps
- Handles pumps up to:
- 1/2 HP at 120V
- 1 HP at 230V
This makes it a strong choice for:
- Wastewater systems
- Sewage applications
- High-load pump environments
Unlike cheaper switches, this unit is built to handle the surge current when pumps start.
Designed for Harsh & Turbulent Environments
This SJE PumpMaster float switch is not affected by turbulence or rotation, allowing it to perform reliably in:
- Sewage pits with constant agitation
- Lift stations with high flow
- Industrial tanks with movement
Its high-impact, corrosion-resistant PVC housing is rated for use in water and sewage up to 140°F (60°C).
Adjustable Pumping Range (7" to 36")
The wide-angle design allows for an adjustable pumping range between 7 inches and 36 inches, depending on tether length.
Why this matters:
- Reduces pump short cycling
- Extends pump life
- Improves system efficiency
Longer tether = wider pump cycle
Shorter tether = tighter control
Electrical & Installation Overview
- Voltage: 120V / 230V (single phase)
- 3-wire configuration (SPDT)
- Direct wiring required (no plug)
- Flexible 16-gauge, 3-conductor cable (SJOW, water-resistant)
Installation Notes:
- Must be wired in a dry junction box
- Pump voltage and switch voltage must match
- Professional installation recommended
- Must be used with pumps that have thermal overload protection
Heavy-Duty Construction
- High-impact PVC float housing
- Corrosion-resistant materials
- Stainless steel mounting clamp included
- Designed for long-term use in harsh environments
⚠️ Important Usage Notes
This is critical (and often missed):
- Designed for HP-rated pump loads only
- NOT suitable for:
- low-current applications (<1 amp)
- control/pilot duty systems
Using it outside its intended application can cause premature failure.
Available Options
- Cable lengths:
- 15 ft
- 20 ft
- 30 ft
- Direct wire models only (SPDT configuration)
Technical Specifications
| Specification | Details |
|---|---|
| Switch Type | SPDT (3-wire) wide-angle float switch |
| Voltage | 120V / 230V |
| Max Running Current | 13 amps |
| Max Starting Current | 85 amps |
| Pump Capacity | Up to 1/2 HP (120V), 1 HP (230V) |
| Pumping Range | 7" – 36" adjustable |
| Cable | 16 gauge, 3-conductor SJOW |
| Float Material | High-impact PVC |
| Max Temperature | 140°F (60°C) |
| Application | Water, sewage, wastewater |
Fast Shipping Across Canada & the USA
Cleanflow supplies the SJE PumpMaster SPDT pump float switch across Canada and the United States with fast, reliable shipping. Need help choosing the right float switch? Our team can help.
Looking for SJE Rhombus controls & alarms? We carry a full range of pump control solutions.
Expand Your Pump Control System
Looking to complete your system or simplify installation? These related products work seamlessly with the SJE PumpMaster float switch:
-
SJE PumpMaster Plus Float Switch (Piggyback Plug)
Ideal for plug-and-play installations where hardwiring isn’t required. Perfect for quick replacements and residential pump setups. -
Float Switches & Pump Accessories
Browse float switches, mounting clamps, cable weights, and accessories to customize your system and improve performance. -
Tank Alarm Systems for High/Low Level Monitoring
Add a high water alarm or control panel to monitor liquid levels and prevent overflows, pump failure, or system damage.
Frequently Asked Questions
What is an SPDT float switch?
An SPDT (Single Pole Double Throw) float switch allows you to control a pump in either pump-up or pump-down operation, depending on how it is wired.
What is the difference between pump up and pump down?
- Pump down: empties a tank when liquid rises
- Pump up: fills a tank when liquid drops
Can this float switch be used in septic systems?
Yes, the SJE PumpMaster float switch is designed for both water and sewage applications and works well in septic tanks and lift stations.
What voltage does this switch support?
It supports both 120V and 230V single-phase pump systems.
Does this float switch come with a plug?
No. SPDT models are designed for direct wiring only.
How do I adjust the pumping range?
The pumping range is adjusted by changing the tether length, typically between 7" and 36".
Can this switch handle heavy-duty pumps?
Yes, it supports up to 85 amps starting current, making it suitable for demanding pump applications.
Is this suitable for low-current control systems?
No. This switch is designed for pump loads and should not be used in low-current (<1 amp) control applications.
Manuals & Documentation
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
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