← Limit Switches
D4N Safety Limit Switch, Roller Lever D4N-4120
OMRON — D4N Series
General-purpose/safety-compatible limit switch from Omron's D4N series, built on a 22 x 47 mm mounting hole pattern plastic housing with a spring-return roller lever (resin lever, resin roller) rotary head and M20 conduit entry. The D4N line conforms to EN115-1, EN81-1/2 and ISO 14119, with gold-clad contacts suitable for both standard loads and microloads, making it a mainstay for machine guarding and general position detection.
Key Features
- 22 mm x 47 mm mounting hole pattern, plastic housing
- Direct-opening (positive-break) NC contact mechanism conforming to EN60947-5-1
- Standardized gold-clad contacts for standard loads and microloads
- Conforms to EN115-1, EN81-1, EN81-2 and ISO 14119
- Certified to UL, EN (TUV) and CCC standards
- 1-conduit M20 cable entry, screw-clamp terminals
Detailed Parameters
| Contact Configuration | 1 NC + 1 NO, snap action (also available 2NC/2NC+1NO/3NC slow-action) |
| Actuator Type | Spring-return roller lever (resin lever, resin roller), rotary head |
| Protection Rating (IP) | IP67 (EN60947-5-1) |
| Mechanical Life | 15,000,000 operations min. |
| Electrical Life | 500,000 ops min. (3 A, 250 VAC resistive); 300,000 ops min. (10 A, 250 VAC) |
| Operating / Release Force | 5.0 N max. / 0.5 N min. |
| Ambient Temperature | -30 to +70 degC (no icing) |
| Housing Material | Plastic body and lever |