DPST Snap Action & Limit Switches 621

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Part RoHS Manufacturer Switch Type Mounting Feature Switch Function Type (Actuator) Contact Function Solderability AC Maximum Rating R Load (Contact) Center Contact Plating Color (Actuator) Housing Material Body Color Angle (Actuator) Dielectric Withstand Volts (V) Terminal Material AC Maximum Rating M Load (Contact) Electrical Life Insulation Resistance Packing Method Body Length/Diameter Body Width Length (Bushing) Sealing Contact Timing Maximum Operating Force Insulator Material End Contact Plating Body Height DC Maximum Rating R Load (Contact) Finish (Actuator) Maximum Operating Temperature Operating Position Maximum AC Contact Current Center Contact Material AC Maximum Rating I Load (Contact) Minimum Operating Temperature Length (Actuator) Terminal Finish Switch Action Maximum DC Contact Current Termination Type Manufacturer Series Contact Resistance Diameter (Bushing) Actuator Travel (mm) End Contact Material PCB Hole Count Maximum DC Contact Voltage Additional Features Maximum AC Contact Voltage Maximum Pre Travel JESD-609 Code Type (Bushing) Terminal Length AC Maximum Power Rating R Load (Contact) Material (Actuator)

D4N-6A72

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ONE-WAY ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

9

250 V

240 V

4 mm

D4B-3A16N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-4A32

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP ROLLER PLUNGER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

6

250 V

240 V

2 mm

D4N-2B80

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

CAT WHISKER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

1.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 15 DEG, T.T.= 15 DEG

240 V

D4N-3ELE

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

FORK LEVER LOCK

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.4 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

240 V

D4N-122H

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-2225

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4B-5111N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-8187

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

PLASTIC ROD

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

1.5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

P.T.= 15 DEG, T.T.= 15 DEG

240 V

D2T-T1

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

PIN PLUNGER

5A@250VAC

100000 Cycle(s)

34.4 mm

12.5 inch

IP40

3.24 N

24.65 mm

6A@30VDC

80 Cel

5 A

-25 Cel

MOMENTARY

6 A

SOLDER

.8

30 V

250 V

D4N-6A20

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-2B25

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-1232

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP ROLLER PLUNGER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

6

250 V

240 V

2 mm

D4N-3162

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ONE-WAY ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

9

250 V

240 V

4 mm

D4N-5E22

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

P.T.= 18 DEG, T.T.= 58 DEG

240 V

D4N-6132

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP ROLLER PLUNGER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

6.5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

6

250 V

240 V

2 mm

D4B-3571N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP ROLLER PLUNGER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

18.63 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

7

14 V

400 V

2 mm

D4B-7170N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP PLUNGER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

18.63 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

7

14 V

400 V

2 mm

D4N-6162

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ONE-WAY ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

9

250 V

240 V

4 mm

D4N-4220

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-322G

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-4B2H

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-2280

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

CAT WHISKER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

1.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 15 DEG, T.T.= 15 DEG

240 V

D4N-4ARE

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

FORK LEVER LOCK

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.4 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

240 V

D4N-5E62

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ONE-WAY ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

9

250 V

240 V

4 mm

D4B-1A15N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

STEEL ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-2BLE

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

FORK LEVER LOCK

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.4 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

240 V

D4N-2B31

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP PLUNGER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

6

250 V

240 V

2 mm

D4N-8B87

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

PLASTIC ROD

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

1.5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

P.T.= 15 DEG, T.T.= 15 DEG

240 V

D4N-8A2G

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

4.5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-912G

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4B-4511N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-2E26

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 18 DEG, T.T.= 58 DEG

240 V

D4B-6A87N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

PLASTIC ROD

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

1.47 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 15 DEG, T.T.=15 DEG

400 V

D4N-8A20

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-3231

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP PLUNGER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

6

250 V

240 V

2 mm

D4B-3511N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-4A2H

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-8ARE

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

FORK LEVER LOCK

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

6.4 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

240 V

D4N-1120

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4B-7A11N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4B-3A11N

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ROLLER LEVER

10A@400VAC

500000 Cycle(s)

43 mm

40 inch

IP67

9.41 N

74 mm

10A@14VDC

80 Cel

10 A

-40 Cel

MOMENTARY

10 A

SCREW

14 V

P.T.= 21 DEG, T.T.= 71 DEG

400 V

D4N-9B2H

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-8172

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ONE-WAY ROLLER LEVER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

9

250 V

240 V

4 mm

D4N-2ARE

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

FORK LEVER LOCK

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

6.4 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

240 V

D4N-5232

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

TOP ROLLER PLUNGER

10A@240VAC

300000 Cycle(s)

56 mm

30 inch

IP67

6.5 N

56 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

6

250 V

240 V

2 mm

D4N-4E2H

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

D4N

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

D4N-3B2G

Omron

SNAP ACTING/LIMIT SWITCH

PANEL MOUNT

DPST

ADJUSTABLE ROLLER LEVER

10A@240VAC

300000 Cycle(s)

31 mm

30 inch

IP67

4.5 N

57.5 mm

2.5A@250VDC

70 Cel

10 A

-30 Cel

MOMENTARY

2.5 A

SCREW

250 V

P.T.= 27 DEG, O.T.= 67 DEG

240 V

Snap Action & Limit Switches

Snap action switches and limit switches are electronic switches that are commonly used in industrial control systems and other applications that require precise and reliable control of mechanical processes.

Snap action switches, also known as micro switches, are electrical switches that use a spring-loaded lever to activate the switch when a certain force or pressure is applied. They are commonly used in applications where a small and precise switch is needed, such as in appliances, vending machines, and automotive control systems.

Limit switches, on the other hand, are electrical switches that are activated when a moving object, such as a conveyor belt or door, reaches a specific position or limit. They are commonly used in industrial control systems to monitor the position of mechanical components and to prevent damage or accidents caused by overrunning or overshooting.

Both snap action switches and limit switches come in a variety of configurations, including normally open or normally closed switches, and can be wired to operate in a variety of ways, such as momentary or latching operation.