16 Terminal Switches | McMaster-Carr

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Number of Circuits Controlled

Number of Terminals

Actuator Style

Rotary

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Wire Connection

Switch Action

Switch Starting Position

System of Measurement

Inch

Shaft Diameter

1/4"

Panel Cutout Diameter

Switching Voltage

Switch Designation

Material

Overall Diameter

Input Voltage

Mounting Location

Switching Current

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Electrical Connection

Tab

Terminal

Export Control Classification Number (ECCN)

EAR99

Depth Behind Panel

13/16"

Shaft Length

1 1/2"

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DFARS Specialty Metals

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10 Products

About Electrical Switches

Choose a switch with the right trigger type, number of inputs, and control functions to power your equipment.

Rotary Switches

For 13/32" Panel Cutout Dia.

Control multiple devices with one switch. Turn the shaft to change switch positions. Each position closes a set of contacts per circuit, so you can select between multiple devices on one or more circuits.

Switches for 13/32" panel cutout diameter require a knob.

						Shaft
No. of Circuits Controlled	Switch Action	No. of Positions	No. of Terminals	Dp. Behind Panel	O'all Dia.	Lg.	Dia.			Each
Plastic
With Tab Terminals for 13/32" Panel Cutout Dia.
4	Stays Switched (Maintained)	3	16	13/16"	1"	1 1/2"	1/4"	2.5 A @ 125 V AC, 0.35 A @ 125 V DC	65865K34	000000

Safety Relays

Receive signals from safety monitoring relays or controllers to switch devices off and on because of a system failure. Also known as force-guided or mechanically linked contacts, the interlocking opposing contacts on these relays cannot be open or closed at the same time. To keep your system from receiving false switching signals, the interlocking opposing contact must remain open even if a contact welds closed.

IP20 rated, they have recessed terminals that prevent fingers and other objects from touching live circuits. These relays have been tested to safety standards that can help you achieve your system's PL (performance level) and SIL (safety integrity level). Choose a relay with a PL and SIL rating to meet the needs of your system. Higher ratings indicate greater safety protection. As your system becomes more complex, you generally require a higher safety protection level. Mount them to 35mm DIN rail (also known as DIN 3 Rail).

Relays that meet SIL2 are tested for applications with a probability of failure of 0.1% to 1%. They’re often used for emergency shutdowns, and fire, gas, and overpressure detection.

SIL2, PLd Max. System Safety Rating

With Screw Terminals—DIN-Rail Mount
Number of Terminals	Input Voltage	Control Current, mA	Switching Current @ Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	Features		Each
6 Circuits Controlled with 4 Off (Normally Open) and 2 On (Normally Closed)—6PDT-4NO/2NC
16	120V AC	10	6 A @ 240 V AC	250V AC	3.4"	0.9"	3.9"	Interlocked Opposing Contacts, Recessed Terminals, LED Indicator	6242N118	0000000
16	24V DC	42	6 A @ 240 V AC	250V AC	3.4"	0.9"	3.9"	Interlocked Opposing Contacts, Recessed Terminals, LED Indicator	6242N119	000000
6 Circuits Controlled with 5 Off (Normally Open) and 1 On (Normally Closed)—6PDT-5NO/1NC
16	24V DC	42	6 A @ 240 V AC	250V AC	3.4"	0.9"	3.9"	Interlocked Opposing Contacts, Recessed Terminals, LED Indicator	6242N121	000000

Safety Relays with Diagnostic Capabilities

Control and diagnose issues with safety-critical circuits. These relays have a microprocessor that monitors safety components, such as emergency stops and light curtains, and sends a signal to stop the operation if a failure is detected and restart when the issue is resolved. They also help with diagnostic tasks because of their feedback circuit, which allows basic relays to communicate their status back to the safety relay. These relays have a duplicate set of input and output signals, so they’ll still stop the controlled device if one of the inputs fails.

IP20 rated, they have recessed terminals which prevent fingers and other objects from touching live circuits. These relays have been tested to multiple safety standards and can help achieve PL, SIL, or CAT system ratings. They also meet ISO and IEC standards for machine safety.

Mount them to 35 mm DIN rail (also known as DIN 3 Rail) for fast installation.

Relays and auxiliary contact blocks with delayed safety outputs are often used where power must be maintained after an input signal is received. For example, after a stop button for a machine is pressed, the guard door will stay locked until the machine cycle is finished.

Auxiliary contact blocks (sold separately) allow you to control more components, such as signaling devices or basic relays.

Safety Relays

Relay

Relay with Time Delay

2 Circuits Controlled
Number of Terminals	Input Voltage	Switching Current @ Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	For Use With	Max. System Safety Rating	Features		Each
2 Safety Outputs with 2 Off (Normally Open) and 2 Delayed Safety Outputs with 2 Off (Normally Open)
16	24V DC	3 A @ 240 V AC 3 A @ 24 V DC	250V AC 250V DC	3.9"	0.9"	4.5"	Emergency Stops, Light Curtains	PLe, SIL3	Time Delay	6322N15	0000000
2 Safety Outputs with 2 Off (Normally Open) and 1 Signal Output with 2 On (Normally Closed)
16	24V AC, 24V DC	5 A @ 240 V AC 5 A @ 24 V DC	250V AC 250V DC	3.9"	0.9"	4.5"	Two-Hand Switches	PLe, SIL3	__	6322N16	000000
3 Safety Outputs with 2 Off (Normally Open) and 1 Signal Output with 2 On (Normally Closed)
16	240V AC	3 A @ 240 V AC 2.5 A @ 24 V DC	250V AC 250V DC	3.9"	1.8"	4.5"	Emergency Stops	PLe, SIL3	__	6322N13	000000
3 Circuits Controlled
3 Safety Outputs with 2 Off (Normally Open) and 1 Signal Output with 2 On (Normally Closed)
16	24V DC	4 A @ 230 V AC 4 A @ 24 V DC	240V AC	3.9"	0.9"	4.5"	Emergency Stops	PLe, SIL3	__	6322N19	000000

Auxiliary Contact Blocks for Relays with DC Input Voltage

Auxiliary Contact Block with Time Delay

5 Safety Outputs
Number of Terminals	Input Voltage	Switching Current @ Voltage	Max. Switching Voltage	Ht.	Wd.	Dp.	Features		Each
16	24V DC	2.5 A @ 24 V DC 3 A @ 240 V AC	250V AC, 250V DC	3.9"	0.9"	4.5"	__	6322N22	0000000
4 Delayed Safety Outputs
16	24V DC	3 A @ 240 V AC 3 A @ 24 V DC	250V AC, 250V DC	3.9"	0.9"	4.5"	Time Delay	6322N18	000000