Omron D4C-1520 Limit Switch
Omron D4C-1520 is a general-load limit switch built around an R38 roller lever with a 17.5 mm dia. × 7 mm sintered stainless-steel roller. It uses an SPDT contact form and is rated at 5 A at 250 VAC and 4 A at 30 VDC, making actuator type, contact form, and AC/DC rating the main selection points. IP67 protection is also specified for the switch. The D4C-1520 is part of the D4C Series within the Omron limit switch range from Omron. The R38 lever geometry, stainless-steel roller, SPDT switching, and dual AC/DC ratings distinguish it from plunger-type D4C variants in the same series.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1520 |
Omron D4C-1520 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Roller lever 17.5 dia. x 7 Sintered stainless steel roller R38 |
| Contact Form | SPDT |
| Electrical Ratings | 5 A at 250 VAC/ 4 A at 30 VDC |
| Frequency | 50/60 Hz |
| Load | General load |
| Inrush Current | NC: 20 A max. NO: 10 A max. |
| Ambient Temperature | Operating: -10 to 70 ℃ (with no icing) |
| Ambient Humidity | 35 to 95% RH |
| Pollution Degree | 3 (EN60947-5-1) |
| Shock Resistance | Destruction: 1,000 m/s 2 max. Malfunction: 500 m/s 2 max. |
| Classification Of Protection Against Electric Shock | Class I (with earth wire) |
| Degree Of Protection | IP67 |
The Omron D4C-1520 Limit Switch operates at 50/60 Hz and is classified for general load. Maximum inrush current is 20 A for NC and 10 A for NO. The operating temperature range is -10 to 70°C with no icing, while relative humidity is 35 to 95%. Pollution degree 3 is specified according to EN60947-5-1, and the switch is listed as Class I with an earth wire. These specifications add the electrical and environmental context behind the R38 roller lever, SPDT contact form, 5 A at 250 VAC rating, 4 A at 30 VDC rating, and IP67 protection highlighted in the introduction.
Destructive shock resistance is specified at 1,000 m/s² maximum and malfunction shock resistance at 500 m/s² maximum. For D4C-1520 product selection, the strongest identifying combination is the 17.5 mm dia. × 7 mm sintered stainless-steel roller, R38 lever geometry, SPDT switching, general-load classification, and dual AC/DC ratings. This combination separates the model from D4C roller-plunger and microload variants while keeping the page focused on specifications directly associated with D4C-1520. In the D4C Series, this combination places D4C-1520 in the general-load roller-lever group rather than the roller-plunger or microload groups, keeping the model identity tied to the correct actuator and electrical ratings. For another D4C Series roller-lever model, see D4C-1260.


