Datasheet

ManualsBrandsOmron Industrial Automation ManualsAutomationLimit Switch, Roller Lever, Metal, 2NC, Slow-Action

CSM_D4B-_N_DS_E_10_3

Safety Limit Switch

D4B-@N

Robust safety limit switch with metal housing

Slow-action and snap-action contact with

certified direct opening operation

certification

• Direct opening mechanism (NC contacts only) added to

enable opening contacts when faults occur, such as fused

contacts.

• Safety of lever settings ensured using a mechanism that

engages a gear between the operating position indicator plate

and the lever.

• Equipped with a mechanism that indicates the applicable

operating zone, as well as push-button switching to control left

and right motion.

• Head seal structure strengthened to improve seal properties

(TÜV: IEC IP67, UL: NEMA 3, 4, 4X, 6P, and 13).

• Wide standard operating temperature range:

–40 to 80°C (standard type).

• Certified standards: UL, CSA, EN (TÜV), and CCC.

Model Number Structure

Model Number Legend

1. Conduit size

2: G1/2 (PF1/2) (1-conduit)

4: M20 (1 conduit)

2. Built-in Switch

1: 1NC/1NO (snap-action)

5: 1NC/1NO (slow-action)

A: 2NC (slow-action)

3. Actuator

11: Roller lever (resin roller)

15: Roller lever (stainless steel roller)

16: Adjustable roller lever

17: Adjustable rod lever

70: Plunger

71: Roller plunger

Note: Contact your sales representative for details on

models with safety standard certification.

For the most recent information on models that have been certified for

safety standards, refer to your OMRON website.

Be sure to read the “Safety Precautions” on page 9.

1 2 3

D4B-@@@@N

Summary of content (11 pages)

PAGE 1
Safety Limit Switch D4B-@N CSM_D4B-_N_DS_E_10_3 Robust safety limit switch with metal housing Slow-action and snap-action contact with certified direct opening operation certification • Direct opening mechanism (NC contacts only) added to enable opening contacts when faults occur, such as fused contacts. • Safety of lever settings ensured using a mechanism that engages a gear between the operating position indicator plate and the lever.
PAGE 2
D4B-@N Ordering Information Set Model Numbers Consult with your OMRON representative when ordering any models that are not listed in this table.
PAGE 3
D4B-@N Specifications Standards and EC Directives Conforms to the following EC Directives: • • • • • Machinery Directive Low Voltage Directive EN50041 EN60204-1 EN ISO 14119 Certified Standards Snap-action Models Certification body TÜV Rheinland Slow-action Models Standard EN60947-5-1 (certified direct opening mechanism) GS-ET-15 File No. Certification body Consult your OMRON representative for details.
PAGE 4
D4B-@N Ratings Non-inductive load (A) Rated voltage (V) Resistive load NC Inductive load (A) Lamp load NO NC Inductive load NO NC Motor load NO NC 125 VAC 250 400 10 10 10 3 2 1.5 1.5 1 0.8 10 10 3 5 3 1.5 8 VDC 14 30 125 250 10 10 6 0.8 0.4 6 6 4 0.2 0.1 3 3 3 0.2 0.1 10 10 6 0.8 0.4 6 6 4 0.2 0.1 Note: 1. 2. 3. 4. NO 2.5 1.5 0.8 The above values are continuous currents. Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC).
PAGE 5
D4B-@N Engineering Data Electrical Durability (Snap-action) (Ambient temperature: 5 to 30°C, ambient humidity: 40 to 70%) (cosφ = 0.4) 1,000 500 125 VAC Operating frequencies: 30 times/min., cosφ = 1 300 250 VAC 480 VAC 100 Operations (x 104) Operations (x 104) (cosφ = 1) 1,000 500 300 250 VAC 100 50 50 30 30 10 10 Switching current (A) Operating frequencies: 30 times/min., cosφ = 0.
PAGE 6
D4B-@N Direct Opening Mechanism 1NO/1NC Contact (Snap-action) Conforms to EN60947-5-1 Direct Opening (Only NC contact has a direct opening mechanism.) 1. When contact welding occurs. 2. When contacts are being pulled apart. Movable contact Safety cam directly pushes up the movable contact blade. Movable contact blade B Plunger A 3. When contacts are completely pulled apart.
PAGE 7
D4B-@N Dimensions and Operating Characteristics (Unit: mm) Note: Omitted dimensions are the same as those for the Roller Lever Type Models D4B-2@@@N have a G1/2 conduit opening. D4B-4@@@N have a M20 conduit opening. Switches Roller Lever D4B-@@11N Roller Lever (Stainless Steel Roller) D4B-@@15N 17.5 × 7 stainless steel roller 62±1 17.5 dia. × 6.6 resin roller PT 21° ±3° M5 × 12 56 28.3 Allen-head bolt Four, M3.5 × 19.5 head mounting screws 31.5R Set position indicator plate *1 23 131.3±1.
PAGE 8
D4B-@N Plunger D4B-@@70N Roller Plunger D4B-@@71N 16 PT 9.2 dia. Stainless steel plunger Four, M3.5 × 19.5 head mounting screws Two, 5.3-dia. mounting holes 74 77 8 5.3 15 30±0.2 40 Conduit opening 97 74 5.3 30±0.2 31.5 +1 0 20 Two, M4 × 12 cover mounting screws Cover 7.3 60±0.2 7.3 8 Four, M3.5 × 19.5 head mounting screws Two, 5.3-dia. mounting holes 97 Two, M4 × 12 cover mounting screws Cover 16 9.2 dia. OP 20 OP 60±0.2 12.7 dia. × 4.
PAGE 9
D4B-@N Application Precaution Changing the Operating Direction Operating section (on back of Head) Switches with Roller Levers The operating direction of the lever can be easily changed without using any tools. It can be set to clockwise operation (CW) or counterclockwise (CCW) operation. Use the procedure given at the right to change the operating direction. Operating procedure 1. Remove the four Head set screws and remove the Head from the Switch Box. Head Cover Operating position mark (arrow) 2.
PAGE 10
D4B-@N Wiring Conduit Opening Do not connect the bare lead wires directly to the terminals but be sure to connect each of them by using an insulation tube and M3.5 round crimp terminals and tighten each terminal screw within the specified torque range. The proper lead wire is 20 to 14 AWG (0.5 to 2.5 mm2) in size. dz dia.: D dia.: B: L: F: l: • Make sure that each connector is tightened within the specified torque range. The casing may be damaged if the connector is tightened excessively.
PAGE 11
Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron).