Normally Closed (NC) Level Switches Datasheets

Electric Level Switch -- MS-10
from ABB Measurement & Analytics

The K-TEK MS10 is a Single-pole, Double-throw Electric Switch Capable of Sensing the Liquid Level inside a Process Vessel. The MS10 Requires No Preventative Maintenance as it is Totally Sealed. It Provides either a Normally Open or Normally Closed Dry Contact to Activate External Devices such as... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
Electronic Dual Level Switch -- BLS3000
from Barksdale Control Products

Barksdale's BLS3000 Electronic Dual Level Switches combine three discrete components (dual level switch, pressure transducer, and digital level gauge) into one compact package. The BPS300 is available in three configurations: 1) dual switch points, 2) dual switch points with analog output (4-20 mA... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Maximum Operating Pressure: 43.5
CleverLevel Monitor LBFS Series
from Baumer Ltd.

A multi-purpose sensor: Baumer has developed a versatile solution, the LFBS, to monitor filling levels of containers and tanks in the beverage industry. One version of the sensor in a hygienic design, certified according to EHEDG and 3A, was introduced at the Brau Beviale fair in Nuremberg. The... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Repeatability (Point Level): 0.0394
  • Media Type: Liquid
  • Max Current Rating: 0.0350
Adjustable Float Switches
from BERNSTEIN AG

Up to four encapsulated magnetic sensor elements can be placed in any position at 10 mm intervals in the immersion tube of BERNSTEIN adjustable float switches. Thanks to their extremely user-friendly design, each of these universally used devices can replace several conventional switches. Instead of... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Measuring Range: ? to 39.37
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch
Level Sensors Optical -- VP 01 E
from CARLO GAVAZZI Automation Components

bull; Unmodulated infrared sensor for liquid level detection. • Approved for Ex-applications (DC-types). • Built-in amplifier, Ga-As diode. • Output: Transistor NPN/PNP or SCR, make or break switching. • High chemical resistance to most acids and bases. • VP01/03: Output... [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Switch Type: Solid-state switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
Optical Level Switch -- OPT-A2
from Comus International

Our new range of optical level switches are second to none when it comes to quality and reliability. All units have hermetically sealed electronics with cable entry rated at IP68, an LED status indicator to confirm at a glance the condition of the switch, a standard 2 metre cable with pre stripped... [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Solid-state switch
  • Media Type: Liquid
  • Max Current Rating: 0.1000
Float, Level Sensors -- 374-1000-ND [LS01-1A66-PA-500W from Standex-Meder Electronics]
from Digi-Key Electronics

SENSOR LEVEL FLOAT M8 [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
  • Media Type: Liquid
  • Operating Temp: -22 to 158
Broken Finger Switch -- 205KS120
from elobau sensor technology, Inc.

Broken finger switches with teflon hinge. Switching point with an inclination of α = 12 ° ±3 ° at the top of the switch, measured in the air – Note that the container walls must be at least 3 mm thick. [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
Optical Liquid Level Switch -- OLM01T...
from First Sensor AG

The OLM series offers optical point level detection for a wide range of OEM applications. The optical OLM liquid level switches use solid state technology with no moving parts for highly accurate and reliable measurements. The product range includes switches with microprocessor compatible TTL... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Repeatability (Point Level): 0.0400
  • Media Type: Liquid
  • Switch Type: Solid-state switch
Level Switch -- LS-1755-Series
from Gems Sensors & Controls

All Stainless Steel. FDA Compliant for Contact with Food. High Temperatures and Pressures. Rugged construction suitable for most corrosive liquids, and for high temperatures and pressures. All-stainless steel material of construction complies with FDA food contact regulations. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
LLE Series Liquid Level Sensor with Nickel-plated brass housing, 1/2 inch BSPT and polysulphone sensor; Standard; Type 5; -25 °C to 80 °C; 180 mm lead wires and sleeving -- LLE205000
from Honeywell Safety and Productivity Solutions

The LLE series of enhanced liquid level sensor uses a photo-transistor trigger which provides a digital output that denotes the presence or absence of liquid. This series incorporates reverse polarity, over voltage, short circuit and transient protection. [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Repeatability (Point Level): 0.0394
  • Media Type: Liquid
  • Switch Type: Solid-state switch
Electronic level sensor -- LMC502
from ifm efector inc.

Electronic level sensor, DC PNP/NPN, gold-plated contacts, Probe length: 38 mm, Quick disconnect, gold-plated contacts, 2 switching outputs [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Max Current Rating: 0.1000
  • Media Type: Liquid; Dry material (Bulk solids and powders)
  • Maximum Operating Pressure: 580
Oil Tank Accessories -- Level Temperature Switch NVT
from KTR Corporation

Product features. Electrical level and temperature control. Suitable for mineral oils. Available with 1 or 2 level contacts and with 1 temperature probe. Electrical switch: decreasing level "opener", increasing temperature "opener". Further lengths on request [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Other Type (Special Application)
Brass Full Size Liquid Level Float Switch for Hydrocarbons -- M4300
from Madison Company

The M4300 liquid level switch has a brass stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases within a temperature range of -50 degrees C to 120 degrees C. Applications include fuel tanks, transmissions, and hydraulic systems. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
  • Media Type: Liquid
  • Maximum Operating Pressure: 150
Single Stage Liquid Level Switch -- B-1519 Series
from Oil-Rite Corp.

Single Stage Liquid Level Switches are designed to shut down machinery or turn on warning devices when the liquid supply fails or recedes to a predetermined level. This is especially important in automated plants which demand bearing protection to safeguard against downtime and costly repairs. The... [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
316 Stainless Steel Liquid Level Switch -- LV40 / LV50 Series
from OMEGA Engineering, Inc.

Constructed entirely of 316SS, the LV-40 Single Station Level Switch is specifically designed to withstand the effects of a wide range of chemicals. The unit has a maximum operating temperature of 300F and can be used to meet many level control applications, including medical and water purification... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
Liquid Level Switch -- LLS125
from Plast-O-Matic Valves, Inc.

Series LLS Liquid Level Switch with pivot pin design features SPST reed switch for 120/240 VAC 50 Watt power or optional DC dry circuit for computer/PLC interface. PVC or Noryl body. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST); Single Pole, Double Throw (SPDT) (optional feature)
  • Media Type: Liquid
  • Maximum Operating Pressure: 150
8891267 [LV20-1201 from Flowline, Inc.]
from RS Components, Ltd.

General purpose mini-float level switches provide the user with a reliable and durable mini-float level switch. Suitable for liquid level detection applications such as clean water & chemical solutions. Cost effective reliable vertical switch solution for basic liquid level detection applications. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Max DC Voltage Rating: 120
  • Max AC Voltage Rating: 120
  • Operating Temp: -40 to 176
Chemically Resistant Sensor -- ToughSonic CHEM 10
from Senix Corporation

The ToughSonic CHEM 10 is a chemically resistant ultrasonic sensor designed for applications where corrosive liquids or gasses are present, but it is an excellent choice for benign environments as well. With a maximum range of 10 feet (3 meters), it is the smallest sensor in the ToughSonic CHEM... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Measuring Range: 4 to 120
  • Media Type: Liquid; Dry material (Bulk solids and powders)
  • Switch Type: Electro-mechanical switch (optional feature); Solid-state switch
Liquid Level Sensor, LS01 Series
from Standex-Meder Electronics

Compact single level vertical mount LS01 Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST); Single Pole, Double Throw (SPDT)
Ultrasonic Point Liquid Level Sensor -- LL-01 Sentio Power Loop
from TE Connectivity – Sensors

The LL-01 series ultrasonic Sentio miniature liquid level switches have a compact, cost effective design which allows for convenient integration and highly reliable detection of fluid levels in tanks and equipment. Input power is 5-30 VDC with relay or optional power loop output. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Repeatability (Point Level): 0.0787
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch
Field Adjustable Level Control -- BCPTC80C
from ACT Sensors/Advanced Control Technology, Inc.

Threaded conduit, 1-1/4" npt male, 1/2" npt female [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Solid-state switch
  • Media Type: Liquid
  • Field Adjustability: Field Adjustable Measurement Ranges (10")
Electrolyte Level Sensor -- ELS
from Albér

The Alber ELS is a non-invasive level sensor designed to save you time and money!. ● Designed specifically to comply with the NERC PRC-005 requirements for electrolyte level inspection. ● Eliminate the required quarterly inspection of battery electrolyte levels. ● No alarm …... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Double Pole, Double Throw (DPDT)
Level Float Switch -- LV/E1-127
from Anfield Sensors, Inc.

Compact design, electrical components mounted outside of the tank. Some of the applications: general industrial use, hydraulics, lubrication, process control, food industry, pulp/paper industry, water processing. Description: One part provides two functions, visual level indicator and electrical low... [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Measuring Range: 0.0 to 5
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch
ELS
from Automation Products Group, Inc.

Simple to install & adjust, intrinsic safety [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
CL-10DJ Level Switch -- CL-10 DJ
from Automation Products, Inc.

The Type CL-10DJ Dynatrol ® Level Switch is designed for application to either high or low point level detection of bulk solids. Reliable operation can be achieved with this level control in problem applications where other types of controls may fail to operate at all. Versatile: This control is... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Dry material (Bulk solids and powders)
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
BM 45 Series
from BinMaster, Inc.

For nonhazardous free flowing dry materials, simple yet rugged construction [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Dry material (Bulk solids and powders)
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
Remote Level Indicator -- TruLevel A
from Clark-Reliance Corporation (The)

Trulevel is a direct connected manometric instrument using the slack diaphragm principle to sense and indicate changes in the liquid level for boiler drums, heaters and steam/ condensate applications. [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Measuring Range: 5 to 275
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch; Solid-state switch
Electro-mechanical Liquid Level Switchs -- AKS 38
from Danfoss A/S

AKS 38 is an electro-mechanical liquid level switch designed to provide a reliable, electro-mechanical response to liquid level changes. The simple and basic design ensures long lifetime performance and reliable operation for many applications. Can control liquid level in vessels and accumulators or... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Max Current Rating: 10
ifm efector® Level Sensor -- KN0006
from DME Company

ifm efector ® raises the bar in sensing plastics materials. For years, ifm capacitive level sensors have been a proven solution for applications on loaders, blenders and grinders in the plastics processing industry. Traditional capacitive sensors can detect high-density materials with... [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Switch Type: Solid-state switch
  • Media Type: Dry material (Bulk solids and powders)
  • Max Current Rating: 250
3 Level Custom Float Switch
from FPI Sensors International

FPI Sensors custom level switches are available in a variety of materials, lengths and mounting options making it an ideal choice for many industries and applications. FPI ’s custom liquid level sensor is engineered using the best components and manufacturing techniques to insure a quality,... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Measuring Range: 1 to 235
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch
L001/L002 Series -- L001-0102-0301
from Innovative Solutions

The miniature L001 and L002 afford the lowest cost, smallest sized level switch on the market today combined with unmatched quality, reliability and ease of installation. These solid polypropylene switches are compatible with a broad range of liquids and durable enough to withstand system pressures... [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Pole and Throw Specifications: Single Pole, Single Throw (SPST)
M - Magnetic Level Switches
from KOBOLD Instruments, Inc.

KOBOLD's M-series magnetic level switches are used for the monitoring and control of liquid levels in vessels. These level switches are custom manufactured to customer specifications. The float switches are fitted with a hermetically sealed contact which is situated in the tube. The float sliding on... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Max Current Rating: 0.5000
Oil Level Switch
from Lube USA, Inc.

Used for oil level detection [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Switch Type: Electro-mechanical switch
  • Media Type: Liquid
  • Max Current Rating: 0.5000
Diaphragm Switch -- 7-8100 (G)
from Monitor Technologies LLC

Economical point level detection in bins and hoppers [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Switch Type: Electro-mechanical switch
  • Media Type: Dry material (Bulk solids and powders)
  • Pole and Throw Specifications: Single Pole, Double Throw (SPDT)
Pneumatic Float Valve -- OKC-1536-1
from O'Keefe Controls Co.

The Magnetic Float Valve is an air sensor for detecting liquid level inside a vessel. The float mechanism mounted within the vessel operates a ceramic coated magnet. As the float moves it pivots the magnet. A magnetically actuated sensor on the outside of the solid metal housing reacts to the inner... [See More]

  • Configuration (Normal State): Normally Closed (NC)
  • Maximum Operating Pressure: 350
  • Media Type: Liquid
  • Mounting Options: Side mount
Ultrasonic Liquid Level Detector -- FL50
from Strain Measurement Devices, Inc.

NPT Plastic Point Liquid Level Sensor, Water / fluid detector with Nylon or Polypropylene (PP) housing for a wide range of liquids and has no moving parts. This Ultrasonic Gap sensor is ideal for tough environments. Applications. Fluid levels in tanks/ bilges or other vessels and containers. Fuel... [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC) (optional feature)
  • Measuring Range: ? to 0.2000
  • Media Type: Liquid
  • Switch Type: Solid-state switch
K01 Family Plastic Level Switch -- 0-01-100-03-0
from TEKLAB ELECTRONIC

Fiberglass reinforced body to perform mechanical requirements, prog. timer [See More]

  • Configuration (Normal State): Normally Open (NO) (optional feature); Normally Closed (NC) (optional feature)
  • Repeatability (Point Level): 0.0394
  • Media Type: Liquid
  • Switch Type: Solid-state switch
Float Switch
from Uehling Instrument Company

Float switches are used to trip high/low level alarms, engage relays, control or start/stop pumps, open/close valves etc. They are a simple, inexpensive way to provide independent or redundant setpoints for emergency shut-down or backup. [See More]

  • Configuration (Normal State): Normally Open (NO); Normally Closed (NC)
  • Repeatability (Point Level): 0.0300
  • Media Type: Liquid
  • Switch Type: Electro-mechanical switch