Why choose this model
The key strength of the Z-15HW24-B is its combination of a 15 A current rating and a long stainless steel lever (120 mm). When equipment needs a mechanical stroke trigger with a larger control current (driving relay coils directly or controlling solenoid valves), or the mounting position is far from the trigger point, it is a better fit than a typical small micro switch. Mechanical life is 20 million operations, and since it needs no magnet nearby, it can sense position on structures without cylinders.
Detailed specifications
| Item | Specification |
|---|---|
| Brand | OMRON |
| Model | Z-15HW24-B |
| Lever material / length | Stainless steel / approx. 120 mm |
| Contact material | Silver contacts (low contact resistance, good conductivity) |
| Operation | Self-resetting |
| Contacts | 1NO + 1NC |
| Rated capacity | AC 250 V 15 A |
| Mechanical operating frequency | 120 operations / min |
| Electrical operating frequency | 20 operations / min |
| Mechanical life | Approx. 20,000,000 operations |
| Electrical life | Approx. 500,000 operations |
| Mounting hole pitch / diameter | 25 mm / 4 mm |
| Ambient temperature | −25 °C to +80 °C (no icing) |
| Ambient humidity | 35% to 85% RH |
Micro switch vs reed switch: which to choose?
| Item | Micro switch (Z-15HW24-B) | Reed switch (SMC / FESTO) |
|---|---|---|
| Actuation | Mechanical contact (lever is struck) | Magnetic field sensing (non-contact) |
| Typical use | General mechanical limits, stroke end confirmation | Cylinder piston position feedback |
| Current load | 15 A high current capacity | Typically 100–500 mA |
| Installation | Needs a mechanical trigger structure | Needs a cylinder with built-in magnet |
| Life | 20 million operations (mechanical) | Non-contact, theoretically longer |
When to choose a micro switch instead of a reed switch: if the equipment uses conventional cylinders (without built-in magnets), the stroke limit must carry a high current, or the mounting position can only be triggered by mechanical contact, the Z-15HW24-B is a more direct solution than a reed switch.
Applications
The OMRON Z-15HW24-B can be used for conveyor end-of-travel limits, upper / lower limit protection on lifting mechanisms, robot arm stroke end confirmation and safety door open / close detection. The long stainless steel lever extends the trigger range, suiting designs where the trigger object is far from the mounting surface and reducing the need for machined mounting brackets.
For technical confirmation or urgent quotes, please contact us.
For how micro switches operate and how to select them, see our page “Micro Switch / Snap-Action Switch: OMRON V series / Honeywell Micro Switch / ZF Cherry.”
Trademarks: OMRON, SMC, FESTO and the model names on this page are trademarks or model names of their owners, used here only to identify the products. JIAHON is not the authorized distributor of these brands in Taiwan.
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