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Miniature Manual Reset Limit Switch

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New Series of manual-reset 
Limit Switch 

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

3NC contacts in addition to the 1NC/ 1NO, and 2NC version. 
Version with MBB contacts meet applications for avdanced 
requirements.

• M12-connector models are available, saving on labor and 

simplifying maintenance.

• Standardized gold-clad contacts provide high contact reli-

ability. Can be used with both standard loads and micro-
loads.

• Free of lead, cadmium, and hexavalent chrome, reducing the 

burden on the environment.

• Conforms to EN115 and EN81-1.

Be sure to read the “Safety Precautions” on page G-277.

Note: Contact your sales representative for details on models with safety standard

certification. 

Model Number Structure

1. Conduit/Connector 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 (M20 2-conduit with 1/2-14NPT changing adaptor

included)

8: M20 (2-conduit)
9: M12 connector (1-conduit)

2. Built-in Switch

A: 1NC/1NO (slow-action)
B: 2NC (slow-action)
C: 2NC/1NO (slow-action)
D: 3NC (slow-action)

3. Head and Actuator

20:Roller lever (resin lever, resin 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)

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F502-EN2-04.book  Seite 267  Dienstag, 26. Juli 2005  5:48 17

Summary of Contents for D4N-1A20R

Page 1: ...he Safety Precautions on page G 277 Note Contact your sales representative for details on models with safety standard certification Model Number Structure 1 Conduit Connector 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 M20 2 conduit with 1 2 14NPT changing adaptor included 8 M20 2 conduit 9 M12 connector 1 conduit 2...

Page 2: ...form lock metal lever rubber roller 1 conduit Pg13 5 D4N 1A2HR D4N 1B2HR D4N 1C2HR D4N 1D2HR G1 2 D4N 2A2HR D4N 2B2HR D4N 2C2HR D4N 2D2HR 1 2 14NPT D4N 3A2HR D4N 3B2HR D4N 3C2HR D4N 3D2HR M20 D4N 4A2HR D4N 4B2HR D4N 4C2HR D4N 4D2HR M12 connector D4N 9A2HR D4N 9B2HR 2 conduit Pg13 5 D4N 5A2HR D4N 5B2HR D4N 5C2HR D4N 5D2HR G1 2 D4N 6A2HR D4N 6B2HR D4N 6C2HR D4N 6D2HR 1 2 14NPT See note 2 D4N 7A2HR D...

Page 3: ...62R D4N 6C62R D4N 6D62R 1 2 14NPT See note 2 D4N 7A62R D4N 7B62R D4N 7C62R D4N 7D62R M20 D4N 8A62R D4N 8B62R D4N 8C62R D4N 8D62R One way roller arm lever vertical 1 conduit Pg13 5 D4N 1A72R D4N 1B72R D4N 1C72R D4N 1D72R G1 2 D4N 2A72R D4N 2B72R D4N 2C72R D4N 2D72R 1 2 14NPT D4N 3A72R D4N 3B72R D4N 3C72R D4N 3D72R M20 D4N 4A72R D4N 4B72R D4N 4C72R D4N 4D72R M12 connector D4N 9A72R D4N 9B72R 2 condu...

Page 4: ...rrect operation is possible with the ac tual load beforehand Degree of protection See note 3 IP67 EN60947 5 1 Durability See note 4 Mechanical 1 000 000 operations min Electrical 500 000 operations min for a resistive load of 3 A at 250 VAC See note 5 300 000 operations min for a resistive load of 10 A at 250 VAC Operating speed 1 mm s to 0 5 m s D4N 1A20R Operating frequency 30 operations minute ...

Page 5: ...k position The direction of the reset head can be adjusted to any of the four directions The built in switch has a direct opening mechanism that forcibly separates the NC contact even when there is contact deposit 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 11 33 12 34 Zb ON Stroke 11 12 33 34 Only NC contac...

Page 6: ...ening mechanism When metal deposition occurs the contacts are separated from each other by the plunger being pushed in Conforms to EN60947 5 1 Direct Opening Operation Contact spring Return spring Fixed contact NC Plunger Movable contact Both NC contacts have a direct opening mechanism When metal deposition occurs the contacts are separated from each other by the plunger being pushed in Conforms t...

Page 7: ...Resin Roller D4N 1 20R D4N 2 20R D4N 3 20R D4N 4 20R D4N 9 20R See note 4 17 5 dia 6 8 resin roller Two 4 0 15 dia holes Depth 5 0 Resin lever 2 15 0 05R mounting holes Conduit cap See note 3 20 5 20 5 Blue 22 0 2 31 max 55 47 0 2 2 5 34 9 0 2 16 7 20 0 1 22 0 1 26R 14 dia 43 5 11 0 2 47 1 40 1 27 21 5 30 36 14 2 Adjustable Roller Lever Form Lock with Metal Lever Resin Roller D4N 1 2GR D4N 2 2GR D...

Page 8: ...dia 21 5 30 36 14 2 Roller Plunger D4N 1 32R D4N 2 32R D4N 3 32R D4N 4 32R D4N 9 32R See note 4 9 5 dia 5 resin roller Two 4 0 15 dia holes Depth 5 0 20 5 20 5 2 15 0 05R mounting holes Conduit cap See note 3 Blue 22 0 2 31 max 55 47 0 2 2 5 OP 41 9 0 2 16 7 20 0 1 22 0 1 14 dia 11 0 2 21 5 30 36 14 2 Two 4 0 15 dia holes Depth 5 0 One way Roller Arm Lever Horizontal D4N 1 62R D4N 2 62R D4N 3 62R ...

Page 9: ...05R mounting holes Conduit cap See note 3 Blue 43 5 20 5 11 0 2 47 1 40 1 27 21 5 30 36 14 2 16 7 14 dia 42 0 2 3 56 max 47 39 0 2 25 dia 2 5 5 4 9 0 2 26R 34 20 0 1 40 0 1 42 0 1 22 0 1 Adjustable Roller Lever Form Lock with Metal Lever Resin Roller D4N 5 2GR D4N 6 2GR D4N 7 2GR D4N 8 2GR 17 5 dia 6 8 resin roller Two 4 0 15 dia holes Depth 5 0 Cap 20 to 66R 2 15 0 05R mounting holes Conduit cap ...

Page 10: ... 32R D4N 6 32R D4N 7 32R D4N 8 32R 9 5 dia 5 resin roller Two 4 0 15 dia holes Depth 5 0 Cap 20 5 20 5 2 15 0 05R mounting holes Conduit cap See note 3 Blue 11 0 2 21 5 30 36 14 2 20 5 5 4 OP 41 14 dia 42 0 2 3 56 max 47 39 0 2 25 dia 2 5 9 0 2 20 0 1 40 0 1 42 0 1 22 0 1 16 7 Two 4 0 15 dia holes Depth 5 0 One way Roller Arm Lever Horizontal D4N 5 62R D4N 6 62R D4N 7 62R D4N 8 62R 12 dia x 5 resi...

Page 11: ... or water Turn the power OFF before wiring Doing so may result in electric shock Install the cover after wiring Not doing so may result in electric shock Connect a fuse to the Switch in series to protect the Switch from short circuit damage Use a fuse with a breaking current 1 5 to 2 times larger than the rated current To conform to EN ratings use an IEC60269 compliant 10 A fuse type gI or gG Do n...

Page 12: ... or other solvents Mounting Method Mounting Screw Tightening Torque Tighten each of the screws to the specified torque Loose screws may result in malfunction of the Switch within a short time Switch Mounting Mount the Switch using M4 screws and washers and tighten the screws to the specified torque For safety use screws that cannot be easily removed or use an equivalent measure to ensure that the ...

Page 13: ...ue Seal packing is sold separately LAPP is a German manufacturer Ohm Denki is a Japanese manufacturer Before using an M12 type attaching the provided changing adaptor to the Switch and then connect the recommended connector Before using a 2 conduit 1 2 14NPT type attach the provided changing adaptor to the Switch and then connect the recommended connector Storage Do not store the Switch in locatio...

Page 14: ...similar Wiring connection Significantly different Mounting method Completely compatible Ratings performance Very similar Operating characteristics Very similar Operating method Completely compatible Discontinued Models 1 conduit Plunger type D4D R Replacement Products 1 conduit Plunger type D4N R Discontinued Models 2 conduit Plunger Type D4D R Replacement Products 2 conduit Plunger Type D4N R 20 ...

Page 15: ...R D4D 1A32R D4N 1B32R D4D 2532R D4N 2A32R D4D 2A32R D4N 2B32R D4D 3532R D4N 3A32R D4D 3A32R D4N 3B32R D4D 5532R D4N 5A32R D4D 5A32R D4N 5B32R D4D 6532R D4N 6A32R D4D 6A32R D4N 6B32R D4D 1562R D4N 1A62R D4D 1A62R D4N 1B62R D4D 2562R D4N 2A62R D4D 2A62R D4N 2B62R D4D 3562R D4N 3A62R D4D 3A62R D4N 3B62R D4D 5562R D4N 5A62R D4D 5A62R D4N 5B62R D4D 6562R D4N 6A62R D4D 6A62R D4N 6B62R D4D 1572R D4N 1A72...

Page 16: ...R Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards codes or regulations that apply to the combination of products in the customer s application or use of the products Take all necessary steps to determine the suitability of the product for the systems machines and equipment with which it will be used Know and observe all prohibitions o...

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