OMRON D4A-3109N | Top Plunger Limit Switch, SPDT 10A, IP67
OMRON D4A-3109N general-purpose limit switch. Top plunger actuator, SPDT double-break contacts, 10A 600V AC rating, IP67 sealed, G1/2 conduit.
Product Overview
The OMRON D4A-3109N is a heavy-duty industrial limit switch from the D4A series. It features a top plunger actuator and SPDT double-break snap-action contacts rated for 10A at 600V AC. Designed for harsh environments, it offers IP67 sealing against dust and water ingress and is built for high mechanical durability in machine automation and material handling applications.
Technical Specifications (Electrical & Contact)
| Parameter | Specification |
| Model Number | D4A-3109N |
| Contact Configuration | SPDT (1NO+1NC), Double-break |
| Contact Rating | 10 A @ 600 V AC (Resistive) |
| Max. Voltage | 600 V AC / 250 V DC |
| Electrical Life | 1,000,000 cycles (at rated load) |
| Initial Contact Resistance | ≤ 25 mΩ |
| Insulation Resistance | ≥ 100 MΩ (500 V DC) |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Actuator Type | Top Plunger (Standard) |
| Operating Force | ~17.7 N (Plunger) |
| Pretravel | 1.6 mm |
| Mechanical Life | 50,000,000 cycles (min.) |
| Enclosure Rating | IP67 (Dust-tight, Waterproof) |
| Conduit Entry | G 1/2 (2x) |
| Operating Temperature | -20 °C to +100 °C (Standard) |
| Housing Material | Metal (Zinc Die Cast) |
Key Features
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Rugged Construction: Zinc die-cast body and stainless steel plunger for high shock resistance.
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High Capacity: 10A switching capability eliminates the need for interposing relays in many motor control circuits.
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Environmental Sealing: IP67 rating ensures reliable operation in wet and dusty industrial conditions.
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Double-Break Contacts: Two contact points per circuit provide higher reliability and breaking capacity.
Applications
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Machine Tools: Position detection and end-of-travel limits for CNC equipment.
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Material Handling: Conveyor line object detection and pallet positioning.
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Packaging Machinery: Safety door interlocks and cam-operated sequencing.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
