Dwyer Instruments L6EPB-B-S-3-0 Switch

The Dwyer Instruments L6EPB-B-S-3-0 is a rugged, Flotect liquid level switch designed for reliable point level detection in demanding industrial environments. Constructed with a brass upper housing and brass lower housing machined from solid bar stock, this unit eliminates the risk of leaks associated with multi-part bodies. The side wall mount configuration utilizes a polypropylene spherical float and a magnetic coupling mechanism, ensuring there is no mechanical linkage to fail or wear out over time. This SPDT switch is rated for 5A at 125/250 VAC, making it ideal for direct pump control, level alarms in scrubber systems, or boiler low-water cut-off applications. The weatherproof and explosion-proof enclosure is UL and CSA listed for Class I and II hazardous locations, providing critical safety in volatile atmospheres. Designed for horizontal mounting in a 1" line size, it remains sensitive to level changes of less than 0.5 inches, offering high-accuracy process control without requiring a system shutdown for electrical assembly replacement.

• Magnetic Actuation: No mechanical seals or linkages to maintain, reducing potential leak paths and mechanical failure.
• Explosion-Proof Reliability: Rated for hazardous locations (Class I, Groups A-D; Class II, Groups E-G), ensuring safe operation in volatile oil, gas, or chemical environments.
• Serviceable Design: The electrical switch assembly can be swapped without removing the unit from the process piping, minimizing downtime.
• Durable Wetted Parts: The combination of a brass body and polypropylene float provides excellent compatibility with water, oils, and various alcohol-based liquids.
• Compact Profile: Small footprint allows for installation in tight mechanical rooms or within small-diameter process tees.

Is the L6EPB-B-S-3-0 compatible with pressurized systems?
Yes, this specific model is rated for high-pressure environments, typically up to 1000 psig (depending on the polypropylene float limits), making it suitable for hydro-pneumatic tanks and high-pressure boilers.

Can I use this switch for both normally open and normally closed operations?
Yes. Since it features a single pole double throw (SPDT) snap action switch, you can wire it to either open or close a circuit upon liquid rise.

What is the minimum specific gravity required for operation?
The polypropylene spherical float in this configuration is designed to operate in liquids with a minimum specific gravity of approximately 0.9.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.