Omron D4E-1G20N Limit Switch
Omron D4E-1G20N is a general-load limit switch with a roller lever using 9.5 mm dia. × 4.0 mm stainless sintered-alloy rollers. It has SPDT contacts, operates at 50/60 Hz, and carries IP67 protection. Maximum contact resistance is 15 mΩ, while insulation resistance is 100 MΩ minimum at 500 VDC. The D4E-1G20N Sintered Roller Lever Switch belongs to the D4E-N Series within the Omron D4E-N Limit Switch Range from Omron Industrial Component Products. Mechanical durability is ten million operations minimum, with electrical durability of 500,000 operations minimum under the listed condition.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4E-1G20N |
Omron D4E-1G20N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ctuator | Roller lever 9.5 dia. x 4.0 Stainless sintered alloy rollers |
| Contact Form | SPDT |
| Frequency | 50/60 Hz |
| Load | General load |
| Inrush Current | NC: 10 A max. NO: 10 A max. |
| Ambient Temperature | Operating: -10 to 80 ℃ |
| Ambient Humidity | 35 to 95% RH |
| Shock Resistance | Destruction: 1000 m/s 2 Malfunction: 300 m/s 2 |
| Degree Of Protection | IP67 |
| Contact Resistance Initial Value | 15 mΩ max. |
| Durability | Electrical: 500,000 operations min. (5 A at 250 VAC) Mechanical: 10 million operations min. |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
The Omron D4E-1G20N Limit Switch uses a roller lever with 9.5 mm dia. × 4.0 mm stainless sintered-alloy rollers and an SPDT contact form. It is classified for general load and operates at 50/60 Hz. Maximum inrush current is 10 A for NC and 10 A for NO. Contact resistance is 15 mΩ maximum, insulation resistance is 100 MΩ minimum at 500 VDC, and IP67 protection is specified. Electrical durability is 500,000 operations minimum under the listed 5 A at 250 VAC condition, while mechanical durability is ten million operations minimum.
Operating temperature ranges from -10 to 80°C, with relative humidity from 35 to 95%. Destructive shock resistance is listed at 1,000 m/s² and malfunction shock resistance at 300 m/s². The source does not append max. or min. wording to these shock values, so none is introduced. The 5 A at 250 VAC value appears only inside the electrical-durability condition and is therefore not presented as a normal rated load. The strongest model terms are D4E-N Series, roller lever, 9.5 × 4.0 mm stainless sintered-alloy rollers, SPDT contacts, general-load classification, 15 mΩ contact resistance, 100 MΩ insulation resistance, IP67 protection, and ten-million-operation mechanical durability. The source does not identify side mounting, operating speed, or operation mechanism. For another D4E-N Series product page, see D4E-1A10N.


