Global
These are navigation links to move inside this page.
SitemapSafety Limit Switch
D4B-[]N
![D4B-[]N](/product/thumbnail/family/l_392.jpg)
Snap-action contact with certified direct opening operation certification Maintenance, seal, and resistance to shock increased and direct opening mechanism added. Three-conduit switches and 2NC switches are also available
Data Sheet (2820KB)
Quick links to 'D4B-[]N' page in your country / territory.
-
- Middle East
-
Please contact our European headquarters.
Get more support via Products links, such as manuals and CAD files.
Set Model Numbers
Consult with your OMRON representative when ordering any models that are not listed in this table.
Safety Limit Switches (with Direct Opening Mechanism)
| Actuator | Conduit openings | 1NC/1NO (Snap-action) | 1NC/1NO (Slow-action) | 2NC (Slow-action) | |||
| Model | Direct opening | Model | Direct opening | Model | Direct opening | ||
| Roller lever (resin roller)  | Pg13.5 | D4B-1111N |  | D4B-1511N | | D4B-1A11N | |
| G1/2 (PF1/2) | D4B-2111N | D4B-2511N | D4B-2A11N | ||||
| 1/2-14NPT | D4B-3111N | D4B-3511N | D4B-3A11N | ||||
| M20 | D4B-4111N | D4B-4511N | D4B-4A11N | ||||
| Pg13.5 (3-conduit) | D4B-5111N | D4B-5511N | D4B-5A11N | ||||
| G1/2 (3-conduit) | D4B-6111N | D4B-6511N | D4B-6A11N | ||||
| 1/2-14NPT (3-conduit) | D4B-7111N | D4B-7511N | D4B-7A11N | ||||
| M20 (3-conduit) | D4B-8111N | D4B-8511N | D4B-8A11N | ||||
| Roller lever (stainless steel roller) | Pg13.5 | D4B-1115N | | D4B-1515N | | D4B-1A15N | |
| G1/2 (PF1/2) | D4B-2115N | D4B-2515N | D4B-2A15N | ||||
| 1/2-14NPT | D4B-3115N | D4B-3515N | D4B-3A15N | ||||
| M20 | D4B-4115N | D4B-4515N | D4B-4A15N | ||||
| Pg13.5 (3-conduit) | D4B-5115N | D4B-5515N | D4B-5A15N | ||||
Top plunger  | Pg13.5 | D4B-1170N | | D4B-1570N | | D4B-1A70N | |
| G1/2 (PF1/2) | D4B-2170N | D4B-2570N | D4B-2A70N | ||||
| 1/2-14NPT | D4B-3170N | D4B-3570N | D4B-3A70N | ||||
| M20 | D4B-4170N | D4B-4570N | D4B-4A70N | ||||
| Pg13.5 (3-conduit) | D4B-5170N | D4B-5570N | D4B-5A70N | ||||
| G1/2 (3-conduit) | D4B-6170N | D4B-6570N | D4B-6A70N | ||||
| 1/2-14NPT (3-conduit) | D4B-7170N | D4B-7570N | D4B-7A70N | ||||
| M20 (3-conduit) | D4B-8170N | D4B-8570N | D4B-8A70N | ||||
| Top roller plunger  | Pg13.5 | D4B-1171N | | D4B-1571N | | D4B-1A71N | |
| G1/2 (PF1/2) | D4B-2171N | D4B-2571N | D4B-2A71N | ||||
| 1/2-14NPT | D4B-3171N | D4B-3571N | D4B-3A71N | ||||
| M20 | D4B-4171N | D4B-4571N | D4B-4A71N | ||||
| Pg13.5 (3-conduit) | D4B-5171N | D4B-5571N | D4B-5A71N | ||||
| G1/2 (3-conduit) | D4B-6171N | D4B-6571N | D4B-6A71N | ||||
| 1/2-14NPT (3-conduit) | D4B-7171N | D4B-7571N | D4B-7A71N | ||||
| M20 (3-conduit) | D4B-8171N | D4B-8571N | D4B-8A71N | ||||
General-purpose Limit Switches
| Actuator | Conduit openings | 1NC/1NO (Snap-action) | 1NC/1NO (Slow-action) | 2NC (Slow-action) | |||
| Model | Direct opening | Model | Direct opening | Model | Direct opening | ||
| Adjustable roller lever  | Pg13.5 | D4B-1116N | --- | D4B-1516N | --- | D4B-1A16N | --- |
| G1/2 (PF1/2) | D4B-2116N | D4B-2516N | D4B-2A16N | ||||
| 1/2-14NPT | D4B-3116N | D4B-3516N | D4B-3A16N | ||||
| Pg13.5 (3-conduit) | D4B-5116N | D4B-5516N | D4B-5A16N | ||||
| G1/2 (3-conduit) | D4B-6116N | D4B-6516N | D4B-6A16N | ||||
| 1/2-14NPT (3-conduit) | D4B-7116N | D4B-7516N | D4B-7A16N | ||||
| Adjustable rod lever  | Pg13.5 | D4B-1117N | --- | D4B-1517N | --- | D4B-1A17N | --- |
| G1/2 (PF1/2) | D4B-2117N | D4B-2517N | D4B-2A17N | ||||
| 1/2-14NPT | D4B-3117N | D4B-3517N | D4B-3A17N | ||||
| Pg13.5 (3-conduit) | D4B-5117N | D4B-5517N | D4B-5A17N | ||||
| G1/2 (3-conduit) | D4B-6117N | D4B-6517N | D4B-6A17N | ||||
| 1/2-14NPT (3-conduit) | D4B-7117N | D4B-7517N | D4B-7A17N | ||||
| Coil spring (non-directional)  | Pg13.5 | D4B-1181N | --- | --- | D4B-1A81N | --- | |
| G1/2 (PF1/2) | D4B-2181N | D4B-2A81N | |||||
| 1/2-14NPT | D4B-3181N | D4B-3A81N | |||||
| Pg13.5 (3-conduit) | D4B-5181N | D4B-5A81N | |||||
| G1/2 (3-conduit) | D4B-6181N | D4B-6A81N | |||||
| 1/2-14NPT (3-conduit) | D4B-7181N | D4B-7A81N | |||||
| Plastic rod (non-directional)  | Pg13.5 | D4B-1187N | --- | D4B-1A87N | --- | ||
| G1/2 (PF1/2) | D4B-2187N | D4B-2A87N | |||||
| 1/2-14NPT | D4B-3187N | D4B-3A87N | |||||
| Pg13.5 (3-conduit) | D4B-5187N | D4B-5A87N | |||||
| G1/2 (3-conduit) | D4B-6187N | D4B-6A87N | |||||
| 1/2-14NPT (3-conduit) | D4B-7187N | D4B-7A87N | |||||
Note:
1.In addition to the above models, models compatible with the previous D4B Switches (with standard rotary levers) are available.
Model number examples: D4B-1[]1RN(Pg13.5) or D4B-2[]1RN(PF1/2)
2.Consult your OMRON representative for products.
Replacement Parts
Switch Boxes
| Conduit | 1-conduit type | 3-conduit type | |||||
| Built-in switch | PG13.5 | G1/2 | 1/2-14NPT | PG13.5 | G1/2 | 1/2-14NPT | |
| 1NC/1NO (Snap-action) |  | D4B-1100N | D4B-2100N | D4B-3100N | D4B-5100N | D4B-6100N | D4B-7100N |
| 1NC/1NO (Slow-action) | | D4B-1500N | D4B-2500N | D4B-3500N | D4B-5500N | D4B-6500N | D4B-7500N |
| 2NC (Slow-action) | | D4B-1A00N | D4B-2A00N | D4B-3A00N | D4B-5A00N | D4B-6A00N | D4B-7A00N |
Operating Heads
| Actuator | Type | Model |
| Side rotary * | Standard | D4B-0010N |
| Top plunger | Plain | D4B-0070N |
| Top roller plunger | D4B-0071N | |
| Flexible-rod | Coil spring | D4B-0081N |
| Plastic rod | D4B-0087N |
*The Lever is not included with the Side Rotary Operating Head.
Levers
| Actuator | Length (mm) | Diameter of roller | Model |
| Standard | 31.5 | 17.5 dia. | D4B-0001N |
| Stainless steel roller lever | 31.5 | 17.5 dia. | D4B-0005N |
| Adjustable roller lever | 25 to 89 | 19 dia. | D4B-0006N |
| Adjustable rod lever | 145 max. | --- | D4B-0007N |
| Interchangeable with D4B-0001 | 33.7 | 19 dia. | D4B-000RN |
*Other types of lever are also available.
Top of page
