Series L6 FLOTECT® Liquid Level Switch

Easy In-wall or External Installation, Up to 2000 psig (138 bar), Compact Size

Surprisingly compact, the Series L6 Flotect® Level Switch is designed and built for years of trouble-free service in a wide variety of process liquid level applications. Operation is simple and dependable with no mechanical linkage as the level switch is magnetically actuated. The float lever pivoted within the body moves when the process liquid displaces the float. A magnet on the opposite end of the float lever controls a second magnet on the switch actuating lever located in the switch housing.

California Residents: Click Here for Proposition 65 WARNING.

Product Applications

Direct pump control for maintaining level
Automatic tank dump operations
Level control
Valve control
Level alarm in sumps, scrubber systems, hydro-pneumatic tanks, boilers, and water/ wastewater treatment processes

View All Product Images

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Build Your Custom Part. Use our Product Configurator

Model	Description	Usually Ships*	Price	Order
L6EPB-B-S-3-A Ships: 5-6 Weeks Price: $364.00	Liquid level switch, 304 SS cylindrical float, side wall mounting, max. pressure 200 psig (13.8 bar), min. S.G. 0.5.	5-6 Weeks*	$364.00	Order
L6EPB-B-S-3-B Ships: 5-6 Weeks Price: $392.00	Liquid level switch, polypropylene spherical float, brass external float chamber (tee), max. pressure 250 psig (17.2 bar), min. S.G. 0.9.	5-6 Weeks*	$392.00	Order
L6EPB-B-S-3-C Ships: 5-6 Weeks Price: $386.00	Liquid level switch, 304 SS spherical float, side wall mounting, max. pressure 350 psig (24.1 bar), min. S.G. 0.7.	5-6 Weeks*	$386.00	Order
L6EPB-B-S-3-H Ships: 5-6 Weeks Price: $441.00	Liquid level switch, 304 SS spherical float, brass external float chamber (tee), max. pressure 250 psig (17.2 bar), min. S.G. 0.7.	5-6 Weeks*	$441.00	Order
L6EPB-B-S-3-O Ships: 5-6 Weeks Price: $315.00	Liquid level switch, polypropylene spherical float, side wall mounting, max. pressure 1000 psig (69 bar), min. S.G. 0.9.	5-6 Weeks*	$315.00	Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator

Specifications

Service:: Liquids compatible with wetted materials.
Wetted Materials:: Float: Solid polypropylene or 304 SS; Lower Body: Brass or 303 SS; Magnet: Ceramic; External Float Chamber (Tee): Matches lower body choice of brass or 303 SS; Other: Lever Arm, Spring, Pin, etc.: 301 SS.
Temperature Limits:: -4 to 220°F (-20 to 105°C) standard, MT high temperature option 400°F (205°C) (MT not UL, CSA, ATEX, IECEx and KC). ATEX compliant AT, IECEx IEC and KC option ambient temperature -4 to 167°F (-20 to 75°C) process temperature: -4 to 220°F (-20 to 105°C).
Pressure Limits:: See model chart on Catalog Page.
Enclosure Rating:: Weatherproof and Explosion-proof. Listed with UL and CSA for Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on SS body models only.) ATEX CE 0344 EX II 2 G EEx d IIC T6 Process Temp ≤ 75°C. EC-Type Certificate No: KEMA 04ATEX2128. ATEX Standards: EN 60079-0: 2009; EN60079-1: 2007. IECEx Certified: For Ex d IIC T6 Gb Process Temp = 75°C. IECEx Certificate of Conformity: IECEx DEK II.0039. IECEx Standards: IEC 60079-00: 2007; IEC 60079-1: 2007. Korean Certified (KC) for Ex d IIC T6 Gb Process Temp=75°C. KTL Certificate Number: 2012-2454-75.
Switch Type:: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating:: UL models 5 A @ 125/250 VAC (V~). CSA, ATEX, and IECEx models: 5 A @ 125/250 VAC (V~); 5 A res., 3 A ind. @ 30 VDC (V~). MV option: .1 A @ 125 VAC (V~). MT option: 5 A @ 125/250 VAC (V~). [MT option not UL, CSA, ATEX, or IECEx].
Electrical Connections:: UL models: 18 AWG, 18" (457.20 mm) long. ATEX/CSA/IECEx models: terminal block.
Upper Body:: Brass or 303 SS.
Conduit Connection:: 3/4" (19.05 mm) male NPT standard, 3/4" (19.05) female NPT or M25 with BSPT option on junction box models.
Process Connection:: 1" (25.40 mm) male NPT or 1" (25.40 mm) male BSPT on models without external float chamber, 1" (25.40 mm) female NPT or 1" (25.40 mm) female BSPT on models with external float chamber.
Mounting Orientation:: Horizontal with index arrow pointing down.
Specific Gravity:: See chart on Catalog page.
Weight:: Approximately 1 lb (.5 kg) without external float chamber, 1.75 lb (.8 kg) with external float chamber.
Agency Approvals:: ATEX, CE, CSA, IECEx, KTL, UL.

Features

Trouble-free service due to compact design
Simple and dependable operation with no mechanical linkage
Leak-proof lower body machined from bar stock
Flexible application use with side wall or direct tee mounting options available to act as an external float chamber
Ideal for demanding outdoor applications with weatherproof and explosion-proof body
Save on maintenance costs with electrical assembly that can be easily replaced without removing the unit from the installation so that the process does not have to be shut down
High accuracy with sensitivity to level changes of less than 1/2" (12 mm)

Options

-MV Gold Plated Contact option for dry circuits.
-MT High Temperature option rated 400°F (205°C). (No listings or approvals, only available on models with stainless steel floats.)
-CSA CSA and UL approved construction, includes weatherproof and explosionpproof junction box.
-AT ATEX approved construction, includes weatherproof and explosion-proof junction box.
"D" DPDT Contacts, change seventh character in model number to "D".
"S" 303 Stainless Steel Upper Body, change fifth character in model number to "S".

Videos

No Contact! When to Use Gold Contact Switches

Liquid in your Housing? How to Prevent Conduit Condensation

Model Chart

EXAMPLE	L6	EP	BB	D	3	O	CSA	B0HB	Series L6EPB-B-D-3-O-CSA-B0HB Flotect® Liquid Level Switch, brass body, DPDT, spherical polypropylene float, side wall mount, CSA approval, with 1-1/2" hex type brass bushing.
SERIES	L6								Flotect® Liquid Level Switch
CONSTRUCTION		EP							Explosion Proof
BODY			BB SS						Brass Stainless Steel
SWITCH TYPE				D S					DPDT SPDT
LINE SIZE					3 4				1" 1" BSPT
FLOAT TYPE & INSTALLATION						O A B C H L S			Spherical Polypropylene, Side Wall Mount Cylindrical 304SS, Side Wall Mount Spherical Polypropylene, Brass External Float Chamber Spherical 304SS, Side Wall Mount Spherical 304SS, Brass External Float Chamber Spherical 304SS, 304SS External Float Chamber Spherical Polypropylene, 304SS External Float Chamber
OPTIONS							AT CSA GL IEC KC MT MV ST TBC TOP		ATEX Approval CSA Approval Ground Leads IECEx Approval Korean Certified High Temperature Gold Contacts Stainless Steel Tag Terminal Block Connector Top Mounted Float
BUSHINGS/ TEES & BUSHINGS								B0HB B0H4 B1HB B1H4 B0HBE B0H4E B1HBE B1H4E TB2BS TB2S TB2B2E TB2SE	1-1/2" Hex Type Brass Bushing 1-1/2" Hex Type 304SS Bushing 2" Hex Type Brass Bushing 2" Hex Type 304SS Bushing 1-1/2" BSPT Hex Brass 1-1/2" BSPT Hex 304 SST 2" BSPT Hex Brass 2" BSPT Hex 304 SST 2" Brass 250# Tee & Bushing 2" 316SS Tee & Bushing 2" BSPT Brass 250# Tee & Bushing 2" BSPT 316 SST Tee & Bushing