Magnetically Operted Switch, Leak Proof Body, Explosion-proof

Rugged and reliable the Flotect® L4 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.

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 wastewater/sewage treatment processes

SPECIFICATIONS

Service: Liquids compatible with wetted materials.

Wetted Materials:

  Float and Rod: 316SS.

  Body: Brass or 316SS standard.

  Magnet Keeper: 430SS standard, 316SS or Nickel optional.

Temperature Limits: 4 to 275¡ãF (-20 to 135¡ãC) standard. MT high temperature option 400¡ãF (205¡ãC), (MT option not UL, CSA, ATEX or SAA).

Pressure Limit: Brass body 1000 psig (69 bar), 316SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar). For other floats see options on "Options/Accessories" page.

Enclosure Rating: Weatherproof and explosion-proof. Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX

0344

II 2 G EEx d IIB T6 -20¡ãC¡ÜTamb¡Ü75¡ãC, EC-Type Certificate No: KEMA 03 ATEX 2383. SAA: Exd II C T6 (T amb=60¡ãC). IP66 C1 I, Zone I. Also FM approved.

Switch Type: SPDT snap switch standard, DPDT snap switch optional.

Electrical Rating: UL, FM, ATEX and SAA models: 10A @ 125/250 VAC. CSA models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC. MV option: 1A @ 125 VAC; 1A res., .5A ind. @ 30 VDC. MT option: 5A @ 125/250 VAC. (MT and MV options not UL, CSA, FM, ATEX or SAA.).

Electrical Connection: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and SAA units: terminal block.

Process Connection: 1-1/2" male NPT standard, 2-1/2" male NPT required for optional floats.

Mounting Orientation: Horizontal installation standard, optional vertical top mount.

Weight: 4 lb 9 oz (2.07 kg).

Dead Band: 3/4" (19 mm) for standard float.

Specific Gravity: 0.7 minimum with standard float. For other floats see options on "Options/Accessories" page.

Agency Approvals: UL, CSA, FM, CE and ATEX.