Sanitary Switches | McMaster-Carr

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	Environment Environment

High-Pressure Washdown

	Specifications Met Specifications Met

3-A Sanitary Certified

	For Use With For Use With

	Maximum Voltage Maximum Voltage

	Connection Style Connection Style

Threaded

Quick Clamp

	Environmental Rating Environmental Rating

IEC Zone 0 Groups IIC, IIB,
IIA

	Operates On Operates On

Pressure

Vacuum

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Connection Type Connection Type


Pipe	Tube

	System of Measurement System of Measurement

Inch

	For Tube OD For Tube OD

1 1/2"

	Maximum Setpoint Maximum Setpoint

	Connection Flange OD Connection Flange OD

1.984"

2.49"

	Number of Circuits Controlled Number of Circuits Controlled

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

1 Off (Normally Open) or 1 On
(Normally Closed)

1 On (Normally Closed)

	Application Application

Signal

Food Service

	Minimum Setpoint Minimum Setpoint

	Housing Material Housing Material

Stainless Steel

	Electrical Connection Type Electrical Connection Type

Hardwire

M12-A 4-pin

	Industry Designation Industry Designation

SPDT

	Mount Type Mount Type

Clamp On

Screw

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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20 Products

About Brightness

About Light Appearance

About Pressure Switches

3-A certified, these food-safe switches trigger automated controls and alarms when food-processing, pharmaceutical, and biotech lines reach a set pressure. These switches have many features that make them safe for sanitary environments because they reduce the space where bacteria could grow. A sleeve shields internal parts from water and other contaminants. Polished surfaces and smoothly welded seams make cleaning easier. Made of 316 stainless steel, they stand up to harsh cleaners and sanitizers without rusting. Rated IP67 and NEMA 6, they’re dust tight and withstand washdowns and temporary submersion.

Connect them to your line with the same quick-clamp fittings (also known as tri-clamp fittings) that are common on sanitary lines since they’re easy to take apart for cleaning. The quick-clamp end has a diaphragm that protects the switches from corrosive material and covers threads to keep them clean. The diaphragm is filled with 99.5% pure USP food-grade glycerin, which keeps the switch clean if the diaphragm fails. It’s also laser etched with the serial number to reduce crevices.

Twist the adjustable setpoint ring to make quick changes. These switches are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on (normally open) or from on to off (normally closed).

All have a certificate with traceable lot number and material test report.

Wire Leads
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Continuous Pressure, psi	Max. Short-Term Pressure, psi	Accuracy	Max. Switching Current	Process Temp. Range, °F	Connection Material	Width	For Use With	Specifications Met		Each
1 1/2" Tube OD Quick-Clamp Connection
6 to 30	3	30	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	0000000
8 to 60	5	60	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
10 to 100	4	100	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
20 to 200	16	200	1,000	±5%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
2" Tube OD Quick-Clamp Connection
6 to 30	3	30	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2 1/2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
8 to 60	6	60	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2 1/2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
10 to 100	4	100	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2 1/2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000
20 to 200	16	200	1,000	±5%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	2 1/2"	Beverage, Food	3-A Certified 74-07, UL Listed	00000000	000000

Sanitary Pressure and Vacuum Switches

When these 3-A certified switches reach a set pressure or vacuum, they trigger controls and alarms in food-processing, pharmaceutical, and biotech lines. They have a sleeve to shield internal parts from water and contaminants. Their surfaces are polished and their seams are continuously welded, so cleaning is easy and there’s little room for bacteria to grow. Made of 316 stainless steel, these switches stand up to harsh cleaners and sanitizers without rusting. Rated IP67 and NEMA 6, they’re dust tight and protected from washdowns and temporary submersion.

They connect using the same quick-clamp fittings (also known as tri-clamp fittings) that are common in sanitary lines, because they’re easy to take apart for cleaning. This end has a diaphragm that protects from corrosion and covers threads to keep them clean. The diaphragm is filled with 99.5% pure USP food-grade glycerin, reducing the risk of contamination if the diaphragm fails. The serial number is laser etched on the diaphragm to reduce crevices.

All have a certificate with a traceable lot number and material test report.

Setpoint
Pressure, psi	Vacuum, in. of Hg	Approximate Difference Between Setpoint and Reset Point, psi	Maximum Continuous Pressure, psi	Maximum Short-Term Pressure, psi	Accuracy	Maximum Switching Current	Process Temp. Range, °F	Connection Material	For Use With	Specifications Met		Each
Wire Leads
1 1/2" Tube OD Quick-Clamp Connection
0-15	30-0	3	15	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	Argon, Beverage, Diesel Fuel, Food, Gasoline, Hydraulic Fluid, Inert Gas, Natural Gas, Nitrogen, Oil, Oxygen, Water	3-A Certified 74-07, UL Listed	00000000	0000000
2" Tube OD Quick-Clamp Connection
0-15	30-0	3	15	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC	-40° to 212°	316 Stainless Steel	Argon, Beverage, Diesel Fuel, Food, Gasoline, Hydraulic Fluid, Inert Gas, Natural Gas, Nitrogen, Oil, Oxygen, Water	3-A Certified 74-07, UL Listed	00000000	000000

Sanitary Level Switches

Detect when oil rises on water, foam forms on beer, and tanks empty, triggering pumps and valves in food and sanitary lines. These switches are 3-A and European Hygienic Engineering and Design Group (EHEDG) certified since they’re easy to keep clean. Highly polished, they prevent bacteria from growing. They also stand up to hot spraying water, chemicals, and cleaners common to food plants, thanks to their PEEK probe, stainless steel body, BSPP threads, and IP ratings. Their IP67 rating also means they won’t fail if under water temporarily.

To connect to automated systems and remote displays, these switches work with IO Link and 4-20 mA analog output, making them good for hard-to-reach areas. Program the colors on the LED indicator to tell you what the switch is sensing.

USP Class tested, the plastic in these switches won’t leach chemicals. They’re also C-UL listed and CE marked to meet Canadian and European safety standards.

Use quick-clamp adapters to connect these switches to quick-clamp sanitary tube fittings.

Note: Solids and liquids must have a dielectric constant of at least 1.5 to detect them.

For technical drawings and 3-D models, click on a part number.

Switches

Switch

8V DC/36V DC Input Voltage
Pipe Size	Thread Type	Gender	Max. Pressure	Temp. Range, °F	Insertion Dp.	Switch Starting Position	Industry Designation	Output Current, mA	Output	Overall Lg.	Electrical Connection	Environmental Rating		Each
316 Stainless Steel Body
1/2	BSPP	Male	145 psi @ 70° F	-40° to 230°	9/16"	1 Off (Normally Open) or 1 On (Normally Closed)	SPDT	100	NPN, PNP	3 13/16"	M12-A 4-pin	IEC Zone 0 Groups IIC, IIB, IIA IP67 IP69K	0000000	0000000

Quick-Clamp Adapters

Quick-Clamp Adapter

Tube Connection		Pipe Connection
For Tube OD	Flange OD	Pipe Size	Thread Type	Gender	Material	Max. Pressure	Specifications Met		Each
1 1/8"	1.988"	1/2	BSPP	Female	316 Stainless Steel	550 psi @ 70° F	3-A Certified 74-07, CE Marked, EHEDG Certified	0000000	0000000

Sanitary Articulating-Arm Machine Lights

Shine light on machinery and through the sight glass on tanks to inspect food, brewery, chemical, pharmaceutical, and bio-tech processing lines. Made of stainless steel, these lights withstand frequent washdowns with harsh cleaners and sanitizers. With a sealed lens, rounded edges, and polished surfaces, there aren’t any pits and crevices where bacteria and water can get trapped, so you can leave them mounted to machinery during cleaning. The lens will also stand up to bumps without cracking. Rated IP65 and NEMA 4X, these lights are protected against dust, dirt, corrosion, and light rinses.

Using built-in LEDs, these lights last longer, are more efficient, and generate less heat than other light technologies. Their cool light appearance is good for inspecting, and the 25° beam angle casts a narrow beam of light to maximize brightness on the inspection area. Use the articulating arm to aim light where it’s needed. Compared to gooseneck-arm lights, these lights hold their position better, especially around vibration.

These lights have a mechanical switch that when pushed once, will turn the light on for two minutes. When pushed twice, the light will turn on for 30 minutes. When the switch is pushed and held, the light will turn on until the switch is released.

				Base
Voltage	Arm Reach	Arm Adjustability	Head Dia.	Lg.	Wd.	Brightness, lumens	Light Appearance	Wattage	Head Material	Arm Material	Lens Material	Electrical Connection Type		Each
Built-In LED Bulbs
Fastener Mount
12V AC, 12V DC, 24V AC, 24V DC	2 7/8"	Horizontal, Vertical	2"	1 1/4"	1/2"	1,000	Cool (5,000K)	12W	Stainless Steel	Stainless Steel	Glass	Hardwire	0000000	0000000
120V AC, 240V AC	2 7/8"	Horizontal, Vertical	2"	1 1/4"	1/2"	1,000	Cool (5,000K)	12W	Stainless Steel	Stainless Steel	Glass	Hardwire	0000000	000000

Sanitary Lights for Quick-Clamp Fittings

Attach these lights in one of the quick-clamp ports for a clear view of what's inside tanks, filters, and other closed containers used in brewery, pharmaceutical, and food-processing lines. Made with a 316 stainless steel body that is IP65 and NEMA 4X rated, they seal out dirt and dust, and won't corrode from frequent rinsing with harsh cleaners and sanitizers. With rounded edges, polished surfaces, and a fused lens, there aren’t any crevices for water and bacteria to hide in, so you can leave them mounted to machinery during cleaning. The lens doesn’t contain Bisphenol A (BPA), Bisphenol B (BPB), or BPA derivates (BPX), which are chemicals that could contaminate food and beverage applications. These lights also meet ASME BPE, which is a design standard for bioprocessing equipment that helps ensure purity and safety.

You’ll need to make sure your tank has at least two ports, since these lights require their own port. They mount to the port using quick-clamp clamps (not included), while leaving the other port for viewing. Mounting the light this way makes it easy to install and remove for cleaning.

With built-in LEDs, these lights last longer, are more efficient, and generate less heat than other light technologies. Their cool light appearance is good for viewing the contents of stainless steel containers, such as brew kettles and bioreactors. The narrow 25° beam angle concentrates light output through the lens and into the tank. Made of plastic, the lens resists shattering, high temperatures, corrosion, and chemicals. It’s reinforced around the edge with 304 stainless steel, so it won’t chip, crack, and break from the pressure of the quick-clamp fitting. Attach the lens to the body using the included set screws.

Lights

Light

								Lens
Voltage	For Tube OD	Flange OD	End-to-End Lg.	Brightness, lumens	Light Appearance	Wattage	Body Material	Dia.	Material	Electrical Connection Type	Temp. Range, °F	Max. Pressure, psi	Specifications Met		Each
Built-In LED Bulbs
Clamp-On Mount
24V AC, 24V DC	1"	1.984"	6 5/8"	1,000	Cool (5,000K)	12W	316 Stainless Steel	1 1/4"	Plastic	Hardwire	-40° to 170°	150	ASME BPE	000000	0000000
24V AC, 24V DC	2"	2.515"	6 3/8"	1,000	Cool (5,000K)	12W	316 Stainless Steel	1 1/4"	Plastic	Hardwire	-40° to 170°	150	ASME BPE	000000	000000
120V AC	1"	1.984"	6 5/8"	1,000	Cool (5,000K)	12W	316 Stainless Steel	1 1/4"	Plastic	Hardwire	-40° to 170°	150	ASME BPE	000000	000000
120V AC	2"	2.515"	6 3/8"	1,000	Cool (5,000K)	12W	316 Stainless Steel	1 1/4"	Plastic	Hardwire	-40° to 170°	150	ASME BPE	000000	000000

Replacement Sights

Replacement Sight

For Tube OD	Flange OD		Each
1"	1.984"	0000000	0000000
2"	2.515"	0000000	000000

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