SQUARE D
SQUARE D Alternator Liquid Level Switch Close On Rise
A liquid-level switch for open tanks that closes the circuit when the float rises, rated 10 A at 460 V AC with a stainless-steel float and steel body
- TypeLight Switch
- Color/FinishBlack
- Closes on rising liquid level to protect equipment
- 10 A contact rating handles up to 600 A motor loads
- Steel body with stainless-steel float resists corrosion
- Operates from -22 to 220 °F in harsh environments
- Open tank mounting simplifies installation and maintenance
Alternator Liquid Level Switch
The Square D alternator liquid level switch monitors fluid levels in open tanks and closes its contacts when the float rises. It is built for industrial maintenance teams and OEMs who need a reliable DPST-4NC switch rated at 10 A and 460 V AC for motor-control circuits up to 5 hp at 240 V three-phase.
Sustained-load behaviour
The switch operates continuously across a temperature span of -22 to 220 degrees F and carries a maximum current of 600 A within its NEMA 1 enclosure. Stainless-steel float construction resists corrosion during long-term immersion, while the steel body withstands mechanical vibration in pump and alternator installations.
Installation notes
The unit mounts directly on an open tank with an overall length of 10.32 in, a float travel of 1 1/4 in, and a float diameter of 7 in. Clearance of at least 4.5 in in height and 4.69 in in width is required; installers must verify tank dimensions and wiring for the close-on-rise logic before commissioning.
Highlights
- Closes on rising liquid level to protect equipment
- 10 A contact rating handles up to 600 A motor loads
- Steel body with stainless-steel float resists corrosion
- Operates from -22 to 220 °F in harsh environments
- Open tank mounting simplifies installation and maintenance
Specifications
| Brand | Square D |
|---|---|
| Type | Light Switch |
| Color/Finish | Black |
Questions about this item
How much heat can the switch handle when it runs continuously in a hot engine compartment?
The operating temperature range is -22 degrees to 220 degrees F, so it is rated for sustained high-heat environments.
What electrical supply must already be present for this 10 A DPST switch to function?
It requires a 460 V AC circuit and is rated for 120 V single-phase up to 2 hp, 240 V single-phase up to 3 hp, and 240 V three-phase up to 5 hp.
Will the 10.32 in overall length and open-tank mounting fit the existing bracket on an older alternator?
The switch measures 10.32 in long, 4.5 in high and 4.69 in wide with an open-tank mount and 1 1/4 in float travel; compare those dimensions to your current bracket.
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