LS-32-090 Brass/Buna Float Switch – SPDT, 1/8″ NPT, 8VA, 150 PSI

Description

The LS-32-090 Brass and Buna Float Switch is a compact, economical, and highly reliable liquid level sensor engineered for a broad range of applications where cost-efficiency, durability, and precise fluid control are required. Designed for use in both commercial and industrial environments, this float switch combines a robust brass stem and housing with a resilient Buna-N (nitrile rubber) float, delivering exceptional performance in a variety of fluid media.

Thanks to the chemical compatibility of Buna-N, the LS-32-090 is particularly well-suited for use in lubricating oils, hydraulic fluids, gasoline, diesel fuel, and water-based liquids. The material offers excellent buoyancy, wear resistance, and stability across a wide operating temperature range—ensuring the float maintains its performance even after prolonged exposure to demanding environments.

The brass body offers strong corrosion resistance in non-aggressive fluids and provides mechanical strength for applications requiring rugged construction. With a maximum pressure rating of 150 PSI, this float switch can be installed in pressurized systems, including tanks, gearboxes, coolant systems, and reservoirs. It supports fluid temperatures from -40°F to 230°F in oils and up to 180°F in water, making it ideal for systems exposed to fluctuating conditions or continuous thermal cycling.

This model includes 24-inch PVC-insulated lead wires for secure, moisture-resistant electrical connections and straightforward integration into control panels or automation systems. The float switch uses a Single-Pole Double-Throw (SPDT) reed switch, allowing for flexible wiring configurations to support both normally open (NO) and normally closed (NC) operation. Configuration is as simple as inverting the float during installation—offering convenient adaptability for various applications.

Applications for the LS-32-090 range from fluid level monitoring in tanks and reservoirs to oil level detection in engines, compressors, and hydraulic equipment, making it an ideal solution for OEMs, maintenance teams, and system integrators. This switch is UL Recognized, providing assurance of safety, quality, and compliance in regulated environments.

Designed for long service life with minimal maintenance, the LS-32-090 delivers consistent, accurate fluid level detection for systems that require dependable performance without the higher cost of stainless steel alternatives.

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* The dry state can be changed from Normally Open to Normally Closed by inverting the float.

Dry State: The condition of the reed switch when the tank is dry.
N.O.: Normally Open
N.C.: Normally Closed
SPST: Single Pole Single Throw
SPDT: Single Pole Double Throw