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L4 | Float switch | brass body | 316SS float | side wall mounting. | Dwyer Instruments

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Dwyer Instruments L4 Documents

Instruction Manual (English)Instruction Manual (Multilingual)Series L4 Catalog Page L4 More Info

Overview

Details for L4

Dwyer Instruments L4 Magnetic Float Switch Dwyer Instruments' L4 is a dependable magnetic float switch designed for liquid level measurement and control applications. Its rugged construction and high-quality materials make it ideal for use in industrial environments. Key Features and Benefits: - Magnetically actuated for reliable and consistent operation - Float mechanism senses liquid level changes - Provides reliable switch actuation for controlling pumps, alarms, or other devices - Durable construction ensures longevity in harsh industrial settings - Compact design for easy installation in tight spaces Applications: The Dwyer Instruments L4 Magnetic Float Switch is suitable for a wide range of liquid level monitoring and control applications, including: - Level control in tanks and reservoirs - Sump pump control - High-level alarms - Monitoring liquid levels in industrial processes Technical Specifications: - SKU: L4 - Media Compatibility: Most liquids - Max. Pressure: 150 psi - Max. Temperature: 250Â°F - Electrical Rating: 10A, 125VAC/24VDC - Material: Santoprene (float), 316SS (switch body) Our HVAC supply store is your trusted source for Dwyer Instruments' L4 Magnetic Float Switch and other industrial products. We offer competitive prices, fast shipping, and a commitment to providing exceptional customer service. Contact us today to learn more and place your order!

SERIES L4 FLOTECT® FLOAT SWITCH

Magnetically Operated Switch, Leak Proof Body, Explosion-Proof

Rugged and reliable the Series L4 Flotect® Float Switch operates automatically to indicate tank level. Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals. A unique magnetically actuated switching design gives superior performance. There are no bellows, springs, or seals to fail. Instead, the free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm. Float arm hinge design limits the arm angle to prevent vertical hang up.

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Product Applications

Direct pump control for maintaining level
Automatic tank dump operations
Control levels or provide alarms in sumps, scrubber systems, hydro-pneumatic tanks, low pressure boilers, and various water/wastewater treatment processes
Level control
Valve control

Superior performance due to unique magnetically-actuated switching design
Long product life with no bellows, springs, or seals to fail
Avoids clogs using a free-swinging float that attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm
Prevents vertical hang up with float arm hinge design that limits the arm angle

Specifications

Series: L4 FLOTECT® FLOAT SWITCH
Category/Type: Level
Type: Level Switches
Series: L4 FLOTECT® FLOAT SWITCH
Service: Liquids compatible with wetted materials.
Wetted Materials: Float and Rod: 316 SS; Body: Brass or 316 SS standard; Magnet Keeper: 430 SS standard; 316 SS or nickel optional.
Temperature Limits: 4 to 275°F (-20 to 135°C) standard; MT high temperature option 400°F (205°C) [MT option not UL; CSA; ATEX or IECEx]. ATEX and IECExoptions: Ambient temperature -4 to 163°F (-20 to 73°C); Process temperature -4 to 163°F (-20 to 73°C).
Pressure Limit: Brass body 1000 psig (69 bar); 316 SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar). For other floats; see options.
Enclosure Rating: Weatherproof and Explosion-proof. **Listed with UL and CSAfor Class I; Groups C and D; Class II; Groups E; F; and G.ATEX CE 2813 II 2 G Ex db IIB T6 Gb -20°C≤Tamb≤73°C.-20°C≤Process Temp≤73°C.EU-Type Certificate No.: KEMA 03 ATEX 2383.ATEX Standards: EN 60079-0:2012+A11:2013.IECEx Certified: For Ex db IIB T6 Gb -20°C≤Tamb≤73°C. -20°C≤ProcessTemp≤73°C.IECEx Certificate of Conformity: IECEx DEK 11.0071.IECEx Standards: IEC 60079-0:2011; IEC 60079-1:2014.
Switch Type: SPDT snap switch standard; DPDT snap switch optional.
Electrical Rating: UL; FM; ATEX and IECEx models: 10 A @ 125/250 VAC (V~). CSA models: 5 A @ 125/250 VAC (V~); 5 A res.; 3 A ind. @ 30 VDC. MV option: 1 A @ 125 VAC (V~); 1 A res.; .5 A ind. @ 30 VDC. MT option: 5 A @ 125/250 VAC (V~). [MT and MV option not UL; CSA; FM; ATEX or IECEx]
Electrical Connection: UL and CSA models: 16 AWG; 6" (152 mm) long. ATEX and IECEx units: terminal block.
Conduit Connection: 3/4" (19.05 mm) female NPT standard or M25 with -BSPT option.
Process Connection: 1-1/2" (38.10 mm) male NPT or 1-1/2" (38.10 mm) male BSPT standard; 2-1/2" (63.50 mm) male NPT or 2-1/2" (63.50 mm) male BSPT standard optional floats.
Mounting Orientation: Horizontal installation standard; optional vertical top mount.
Deadband: 3/4" (19 mm) for standard float.
Specific Gravity: 0.7 minimum with standard float. For other floats see Options/Accessories page.
Weight: 4 lb 9 oz (2.07 kg).
Agency Approvals: ATEX; CE; CSA; FM; IECEx; UL**.
: **No Housing Option (-NH) has no approvals.