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Safety Limit Switch

D4N

Upgraded Safety Limit Switches Based 
on the Popular D4D, Providing a Full 
Lineup Conforming to International 
Standards

Lineup includes three contact models with 2NC/1NO and 3NC 

contact forms in addition to the previous contact forms 1NC/

1NO, and 2NC. Models with MBB contacts are also available.

M12-connector models are available, saving on labor and 

simplifying replacement.

Standardized gold-clad contacts provide high contact reliability.

Can be used with both standard loads and microloads.

Conforms to EN115, EN81-1, and EN81-2 (slow-action models 

only).

Lineup includes both slow-action and snap-action models with 

Zb contacts.

Certified standards: UL, EN (TÜV), and CCC

Model Number Structure

Model Number Legend

1. Conduit size

1: Pg13.5 (1-conduit)
2: G1/2 (1-conduit)
3: 1/2-14NPT (1-conduit)
4: M20 (1-conduit)
5: Pg13.5 (2-conduit)
6: G1/2 (2-conduit)
7: 1/2-14NPT (2-conduit)
8: M20 (2-conduit)
9: M12 connector (1-conduit)

2. Built-in Switch

1: 1NC/1NO (snap-action)
2: 2NC (snap-action)
A: 1NC/1NO (slow-action)
B: 2NC (slow-action)
C: 2NC/1NO (slow-action)
D: 3NC (slow-action)
E: 1NC/1NO (MBB contact) (slow-action)
F: 2NC/1NO (MBB contact) (slow-action)

3. Head and Actuator

20: Roller lever (resin lever, resin roller)
22: Roller lever (metal lever, resin roller)
25: Roller lever (metal lever, metal roller)
26: Roller lever (metal lever, bearing roller)
2G: Adjustable roller lever, form lock (metal lever, resin roller)
2H: Adjustable roller lever, form lock (metal lever, rubber roller)
31: Top Plunger
32: Top Roller Plunger
62: One-way roller arm lever (horizontal)
72: One-way roller arm lever (vertical)
80: Cat whisker
87: Plastic rod
RE: Fork lever lock (right operation)
LE: Fork lever lock (left operation)

Note:

Contact your sales representative for details on models 
with safety standard certification. 

Be sure to read the 

“Safety Precautions” 

on page 18

and the 

“Precautions for All Safety Limit Switches”

 .

1  2     3 

D4N-

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http://www.ia.omron.com/

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(c)Copyright OMRON Corporation 2007   All Rights Reserved. 

Summary of Contents for M12 connector --- --- D4N-9E22

Page 1: ...2 conduit 8 M20 2 conduit 9 M12 connector 1 conduit 2 Built in Switch 1 1NC 1NO snap action 2 2NC snap action A 1NC 1NO slow action B 2NC slow action C 2NC 1NO slow action D 3NC slow action E 1NC 1NO MBB contact slow action F 2NC 1NO MBB contact slow action 3 Head and Actuator 20 Roller lever resin lever resin roller 22 Roller lever metal lever resin roller 25 Roller lever metal lever metal roller...

Page 2: ...nnector D4N 9131 D4N 9231 D4N 9A31 D4N 9B31 2 conduit Pg13 5 D4N 5131 D4N 5231 D4N 5A31 D4N 5B31 G1 2 D4N 6131 D4N 6231 D4N 6A31 D4N 6B31 M20 D4N 8131 D4N 8231 D4N 8A31 D4N 8B31 Roller plunger 1 conduit Pg13 5 D4N 1132 D4N 1232 D4N 1A32 D4N 1B32 G1 2 D4N 2132 D4N 2232 D4N 2A32 D4N 2B32 1 2 14NPT D4N 3132 D4N 3232 D4N 3A32 D4N 3B32 M20 D4N 4132 D4N 4232 D4N 4A32 D4N 4B32 M12 connector D4N 9132 D4N ...

Page 3: ... D4N 4E31 D4N 4F31 M12 connector D4N 9E31 2 conduit Pg13 5 D4N 5C31 D4N 5D31 D4N 5E31 D4N 5F31 G1 2 D4N 6C31 D4N 6D31 D4N 6E31 D4N 6F31 M20 D4N 8C31 D4N 8D31 D4N 8E31 D4N 8F31 Roller plunger 1 conduit Pg13 5 D4N 1C32 D4N 1D32 D4N 1E32 D4N 1F32 G1 2 D4N 2C32 D4N 2D32 D4N 2E32 D4N 2F32 1 2 14NPT D4N 3C32 D4N 3D32 D4N 3E32 D4N 3F32 M20 D4N 4C32 D4N 4D32 D4N 4E32 D4N 4F32 M12 connector D4N 9E32 2 cond...

Page 4: ...NPT D4N 3180 D4N 3280 D4N 3B80 M20 D4N 4180 D4N 4280 D4N 4B80 2 conduit G1 2 D4N 6180 D4N 6280 D4N 6B80 M20 D4N 8180 D4N 8280 D4N 8B80 Plastic rod 1 conduit G1 2 D4N 2187 D4N 2287 D4N 2B87 1 2 14NPT D4N 3187 D4N 3287 D4N 3B87 M20 D4N 4187 D4N 4287 D4N 4B87 2 conduit G1 2 D4N 6187 D4N 6287 D4N 6B87 M20 D4N 8187 D4N 8287 D4N 8B87 Actuator Conduit size Built in switch mechanism 2NC 1NO Slow action 3N...

Page 5: ...circuit protection device This fuse is not built into the Switch UL CSA UL508 CSA C22 2 No 14 A300 Q300 Certification body Standard File No TÜV Product Service EN60947 5 1 certified direct opening 1 UL 2 UL508 CSA C22 2 No 14 E76675 CQC CCC 3 GB14048 5 2004010305105973 Item Utilization category AC 15 DC 13 Rated operating current Ie 3 A 0 27 A Rated operating voltage Ue 240 V 250 V Rated voltage C...

Page 6: ...000 000 operations min Degree of protection 1 IP67 EN60947 5 1 Durability 2 Mechanical 15 000 000 operations min 5 Electrical 500 000 operations min 3 A resistive load at 250 VAC 3 300 000 operations min 10 A resistive load at 250 VAC Operating speed 1 to 500 mm s D4N 1120 Operating frequency 30 operations minute max Contact resistance 25 m max Minimum applicable load 4 1 mA resistive load at 5 VD...

Page 7: ...ut in the lever and rotary shaft to prevent the lever from slipping against the rotary shaft There are resin lever and metal lever types Cover The cover with a hinge on its lower part can be opened by removing the screw of the cover which ensures ease of maintenance and wiring Size Box 1 conduit 2 conduit Yes Yes Yes Yes Yes Yes Yes Yes Yes Contact spring Return spring Fixed contact NC Fixed conta...

Page 8: ...NC contacts 11 12 have a certified direct opening mechanism The terminals 11 12 and 33 34 can be used as unlike poles 11 31 12 32 Zb ON Stroke 11 12 31 32 Only NC contacts 11 12 and 31 32 have a certified direct opening mechanism The terminals 11 12 and 31 32 can be used as unlike poles 33 34 11 21 12 22 Zb ON Stroke 21 22 33 34 11 12 Only NC contacts 11 12 and 21 22 have a certified direct openin...

Page 9: ...2 5 9 0 2 26R 18 20 0 1 22 0 1 14 2 Snap action 1NC 1NO 2NC Slow action 2NC 3NC Note Variation occurs in the simultaneity of contact opening closing operations of 2NC 2NC 1NO and 3NC contacts Check contact operation 1 Only for snap action models 2 Reference value 3 For safe use always make sure that the minimum values or greater are provided Model Operating characteristics D4N 120 D4N 220 D4N B20 ...

Page 10: ...P 20 0 1 22 0 1 14 2 31 5 21 5 20 5 20 5 2 15 0 05R mounting holes Conduit cap Two 4 0 15 dia holes Depth 5 0 One way Roller Arm Lever Horizontal D4N 1 62 D4N 2 62 D4N 3 62 D4N 4 62 D4N 9 62 Operating direction 12 5 dia 5 resin roller 30 14 8 23 3 13 5 19 5 0 2 11 0 2 11 0 2 20R 10 2 22 0 2 31 max 47 0 2 2 5 9 0 2 OP 20 0 1 22 0 1 14 2 55 31 5 21 5 2 15 0 05R mounting holes Conduit cap Two 4 0 15 ...

Page 11: ...min 3 20 N 20 N 20 N 20 N Model Operating characteristics D4N A31 D4N C31 D4N E31 D4N F31 D4N A32 D4N C32 D4N E32 D4N F32 D4N A62 D4N C62 D4N E62 D4N F62 D4N A72 D4N C72 D4N E72 D4N F72 Operating force OF max 6 5 N 6 5 N 5 0 N 5 0 N 1 These PT values are possible when the NC contacts are open OFF 2 These PT values are possible when the NO contacts are closed ON 3 Only for MBB models 4 Reference va...

Page 12: ...ith the roller lever set at 32 mm 2 This PT value is possible when the NC contacts are open OFF 3 This PT value is possible when the NO contacts are closed ON 4 Only for MBB models 5 Reference value for MBB models only 6 Reference value 7 For safe use always make sure that the minimum values or greater are provided Release force RF min 0 4 N Pretravel PT 2 18q to 27q PT 2nd 3 44q PT 4 27 5q to 36 ...

Page 13: ... 27 2 21 5 22 0 2 31 max 55 47 0 2 2 5 9 0 2 26R 90 18 20 0 1 22 0 1 14 2 47 max 20 5 20 5 Conduit cap Two 4 0 15 dia holes Depth 5 0 Cat Whisker D4N 1 80 D4N 2 80 D4N 3 80 D4N 4 80 1 2 dia stainless steel wire 2 15 0 05R mounting holes 30 31 5 11 0 2 21 5 22 0 2 31 max 55 47 0 2 2 5 9 0 2 50 1 PT 143 1 20 0 1 22 0 1 14 2 20 5 20 5 Sealing cap 16 6 dia Conduit cap Two 4 0 15 dia holes Depth 5 0 Pl...

Page 14: ...afe use always make sure that the minimum values or greater are provided Model Operating characteristics D4N 120 D4N 220 D4N B20 D4N D20 D4N 122 D4N 222 D4N B22 D4N D22 D4N 131 D4N 231 D4N B31 D4N D31 D4N 132 D4N 232 D4N B32 D4N D32 Operating force OF max 5 N 5 N 6 5 N 6 5 N Release force RF min 0 5 N 0 5 N 1 5 N 1 5 N Pretravel PT 18q to 27q 18q to 27q 2 mm 2 mm Overtravel OT min 40q 40q 4 mm 4 m...

Page 15: ...ler lever set at 31 mm 3 Only for snap action models 4 Reference value 5 For safe use always make sure that the minimum values or greater are provided Model Operating characteristics D4N 162 D4N 262 D4N B62 D4N D62 D4N 172 D4N 272 D4N B72 D4N D72 D4N 12G D4N 22G D4N B2G D4N D2G 1 D4N 12H D4N 22H D4N B2H D4N D2H 2 Operating force OF max 5 0 N 5 0 N 4 5 N 4 5 N Release force RF min 0 8 N 0 8 N 0 4 N...

Page 16: ... 39 3 1 27 2 42 0 2 3 56 max 47 25 dia 2 5 5 4 9 0 2 18 20 0 1 40 0 1 42 0 1 22 0 1 90 26R 47 max 39 0 2 Conduit cap Two 4 0 15 dia holes Depth 5 0 Cat Whisker D4N 5 80 D4N 6 80 D4N 7 80 D4N 8 80 1 2 dia stainless steel wire 2 15 0 05R mounting holes 30 Cap 20 5 11 0 2 16 6 dia 42 0 2 3 56 max 47 25 dia 2 5 20 5 20 5 5 4 9 0 2 20 0 1 40 0 1 42 0 1 22 0 1 14 2 50 1 PT 143 1 21 5 31 5 39 0 2 Sealing...

Page 17: ... 1 0 55 1 0 65R 31R 45 min 25 min 10 min Sealed Plunger D4N 31 12 5 0 2 5 18 0 5 Dog 15 min 21 min Dog Operating position Roller Plunger D4N 32 25 1 0 35 28 1 10 1 5 2 5 30 12 5 0 2 5 Dog 20 min 10 min Operating position 25 min 31 min One way Roller Arm Lever Horizontal D4N 62 30 max Dog 20 min 31 1 0 10 2 40 5 min 10 min 30 12 5 0 2 5 One way Roller Arm Lever Vertical Reference Values D4N 72 30 2...

Page 18: ... Mounting x Mount the Switch using M4 screws and washers and tighten the screws to the specified torque x For safety use screws that cannot be easily removed or use an equivalent measure to ensure that the Switch is secure x As shown below two studs with a maximum height of 4 8 mm and a diameter of 4 mm can be provided the studs inserted into the holes on the bottom of the Switch and the Switch se...

Page 19: ...he joint between the connector and conduit opening so that the enclosure will conform to IP67 x Use a cable with a suitable diameter for the connector x Attach and tighten a conduit cap to the unused conduit opening when wiring Tighten the conduit cap to the specified torque The conduit cap is provided with the Switch 2 conduit types Changing the Lever The lever mounting screws can be used to set ...

Page 20: ...ached with the seal rubber out of place or if foreign material is stuck to the rubber a proper seal will not be obtained x Do not use any screws to connect the cover other than the specified ones The seal characteristics may be reduced x Make sure that foreign particles do not enter the head when removing the screws from the four corners to change the head position in any of the four directions x ...

Page 21: ... Mounting method Completely compatible Ratings performance Very similar Operating characteristics Very similar Operating method Completely compatible Discontinued Product 1 conduit Plunger type D4D N Recommended Substitute Product 1 conduit Plunger type D4N Discontinued product 2 conduit Plunger type D4D N Recommended Substitute Product 2 conduit Plunger type D4N 25 dia 0 1 Two 3 0 05 dia holes 12...

Page 22: ... 3125 D4D 3525N D4N 3A25 D4D 3A25N D4N 3B25 D4D 1131N D4N 1131 D4D 1531N D4N 1A31 D4D 1A31N D4N 1B31 D4D 2131N D4N 2131 D4D 2531N D4N 2A31 D4D 2A31N D4N 2B31 D4D 3131N D4N 3131 D4D 3531N D4N 3A31 D4D 3A31N D4N 3B31 D4D 5131N D4N 5131 D4D 5531N D4N 5A31 D4D 5A31N D4N 5B31 D4D 6131N D4N 6131 D4D 6531N D4N 6A31 D4D 6A31N D4N 6B31 D4D 1132N D4N 1132 D4D 1532N D4N 1A32 D4D 1A32N D4N 1B32 D4D 2132N D4N ...

Page 23: ...5BLE D4D 6127N D4N 612H D4D 65LEN D4N 6ALE D4D 6ALEN D4N 6BLE D4D 1180N D4N 4180 D4D 1521N D4N 1A2G D4D 1A21N D4N 1B2G D4D 2180N D4N 2180 D4D 2521N D4N 2A2G D4D 2A21N D4N 2B2G D4D 3180N D4N 3180 D4D 3521N D4N 3A2G D4D 3A21N D4N 3B2G D4D 5180N D4N 8180 D4D 5521N D4N 5A2G D4D 5A21N D4N 5B2G D4D 6180N D4N 6180 D4D 6521N D4N 6A2G D4D 6A21N D4N 6B2G D4D 1187N D4N 4187 D4D 1527N D4N 1A2H D4D 1A27N D4N 1...

Page 24: ...will return to the FP when the actuator is actuated by the object If the Limit Switch is used in the normally open condition the actuator must be pressed to 80 to 100 of the OT i e 60 to 80 of the TT and any slight fluctuation must be absorbed by the actuator x If the full stroke is set close to the OP or RP contact instability may result If the full stroke is set to the TTP the actuator or switch...

Page 25: ...or may come into direct contact with cutting chips metal filings oil or chemicals Locations where the Switch may come into contact with thinner or detergents Locations where explosive or flammable gases are present Switch Contacts Switch contacts can be used with both standard loads and microloads but once a contact has been used to switch a standard load it cannot be used for a load of a smaller ...

Page 26: ...ence line and the bottom of the dog based on the optimum stroke is expressed by the following formula Dog Surface x The surface of dog touching the actuator should be 6 3 S in quality and hardened at approximately HV450 For smooth operation of the actuator apply molybdenum disulfide grease to the actuator and the dog touching the actuator Others x When using the Limit Switch with a long lever or l...

Page 27: ...actuator at a right angle The actuator or roller may deform or break if the dog touches the actuator roller at an oblique angle x Do not remove the Head The Switch may fail Dog Dog D o g D o g Incorrect Correct http www ia omron com C 4 c Copyright OMRON Corporation 2007 All Rights Reserved ...

Page 28: ...tenance x Do not attempt to disassemble or modify the Switch Doing so may cause the Switch to malfunction x Do not drop the Switch Doing so may result in the Switch not performing to its full capability Wiring Pay the utmost attention so that each terminal is wired correctly If the terminal is wired incorrectly the Switch will not function Furthermore not only will the Switch have a negative influ...

Page 29: ...the contacts easily stick to each other and do not separate when the surfaces of the contacts are uneven x If the load is inductive counter electromotive voltage will be generated The higher the voltage is the higher the generated energy will be which will increase the abrasion of the contacts and contact relocation load conditions Be sure to use the Switch within the rated conditions x If the loa...

Page 30: ... 300 V For applications in an AC circuit use an AC capacitor with no polarity Yes Yes The operating time of the contacts will be increased if the load is a Relay or solenoid Connecting the CR circuit in parallel to the load is effective when the power supply voltage is 24 or 48 V and in parallel to the contacts when the power supply voltage is 100 to 200 V Diode No Yes The energy stored in the coi...

Page 31: ...y of the Switch is comparatively low or the load is minute Otherwise sulfuric film will be generated on the contacts and contact failures may result Use the Switch with gold plated contacts or use a Switch designed for minute loads instead x Do not use the Switch in locations with corrosive gas such as sulfuric gas H2S or SO2 ammonium gas NH3 nitric gas HNO3 or chlorine gas Cl2 or high temperature...

Page 32: ...ock is beyond the rated value x Attach an anti vibration mechanism x Attach a rubber circuit to the solenoid x Increase the operating speed with an accelerating mechanism Shock has been generated from a device other than the Switch Too slow operating speed Oil or water penetration The sealing part has not been tightened sufficiently x Use a drip proof or waterproof Switch x Use the correct connect...

Page 33: ...e load to ensure contact reliability Refer to Precautions for microloads in individual product information for details x Wire the leads as shown in the following diagram Correct Wiring Incorrect Wiring Correct Crimp terminal Crimped location facing up Lead Terminal screw Terminal screw Terminal Terminal Incorrect Crimp terminal Crimped location facing down Lead Terminal screw Terminal screw Termin...

Page 34: ...op systems that will ensure optimal usage Related International Standards ISO 14119 Interlocking Devices Associated with Guards Principles for Design and Selection Installing Safety Products Make sure that properly educated and trained engineers are selected to develop your safety related system and to install safety products in devices and equipment Related International Standards ISO 12100 Basic...

Page 35: ...d may be suitable for the products Outdoor use uses involving potential chemical contamination or electrical interference or conditions or uses not described in this catalog Nuclear energy control systems combustion systems railroad systems aviation systems medical equipment amusement machines vehicles safety equipment and installations subject to separate industry or government regulations System...

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