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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 (1341KB)
Quick links OMRON IA Safety Limit Switches in your country.
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Please contact our European headquarters.
List of Models
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 | |||||
| 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 | |||||
| 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 | |||||
| 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 | |||||
| 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 | |||||
| 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 | |||||
| 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 | |||||
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 with BIA or SUVA certification.
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 (for Side Rotary Switches)
| 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 |
Note: Other types of lever are also available.
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