Omron Z-15GQ55-B — Basic Switch, Overtravel Plunger, 15 A
SKU: Z-15GQ55-BUSD 9.00
Z-15G-series general-purpose basic switch with overtravel plunger, panel-mount screw terminals, SPDT snap-action, 15 A at 250 VAC.
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The Omron Z-15GQ55-B is a 15 A general-purpose basic switch in the Z-15G family, built around a panel-mount body and an "overtravel" plunger — the same mechanical snap-action mechanism as the rest of the Z-15G line, but with extra plunger travel for cam-actuated applications. manufactured by Omron Corporation. Hengyixin Automation ships this switch from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
On the Z-15G, the prefix G means "general-purpose" and the letter Q means "panel-mount plunger". The "55" suffix specifies the overtravel plunger variant: 1.8 mm pretravel and 5.5 mm overtravel, well beyond the Q plunger's 1.6 mm.
The Z-15GQ55-B ships from Xiamen with full datasheet documentation. Pair it with a stainless plunger boot if the switch is in a washdown zone — the Z-15GQ55-B body itself is IP00.
Key Features
- Standard 0.5 mm contact gap ("G" series)
- Overtravel plunger: 1.8 mm pretravel, 5.5 mm overtravel
- SPDT snap-action (On-Mom) with 0.05 mm differential travel
- 15 A resistive at 125 / 250 VAC; 0.5 A at 125 VDC
- SKU: Z-15GQ55-B
- Series: Z-15G general-purpose basic switch
Best-Fit Applications
- Trigger signal on conveyor diverter arms
- Position detection on cam-actuated packaging and assembly machinery
- Index pulse on rotating wheels and indexing dials
Buying Checklist
- Choose Z-15GQ55-B when the cam needs extra overtravel past the operating point.
- Choose Z-15GW2-B for a hinge roller-lever actuator for cam or angled approach.
- Choose Z-15GK55-B for a slim spring-plunger body in the same overtravel family.
Technical Specifications
| Series | Z-15G general-purpose basic switch |
|---|---|
| Contact Form | SPDT (On-Mom), snap-action |
| Contact Gap | 0.5 mm ("G" standard) |
| Rated Load | 15 A at 125 / 250 VAC resistive; 0.5 A at 125 VDC; 0.25 A at 250 VDC |
| Motor Rating | 1/3 HP at 125 VAC, 1/4 HP at 250 VAC |
| Actuator | Overtravel plunger, panel-mount |
| Pretravel / Overtravel | 1.8 mm / 5.5 mm |
| Operating Force | Approx. 5.3 N (540 gf) max |
| Release Force | 1.12 N (114 gf) min |
| Differential Travel | 0.05 mm max |
| Terminal | M3.5 screw |
| Mechanical Life | 10,000,000 operations min |
| Electrical Life | 100,000 operations min (resistive load) |
| Operating Temperature | -25 to +80 °C |
| Protection | IP00 (basic) |
FAQ for Z-15GQ55-B
What is the difference between Z-15GQ and Z-15GQ55?
Z-15GQ is a standard panel-mount plunger with ~1.6 mm overtravel; Z-15GQ55 is the overtravel-plunger variant with 5.5 mm overtravel for cam-actuated mechanisms. Pick the 55 when the cam sweeps past the operating point.
Can Z-15GQ55-B drive a small motor directly?
Yes, within the motor rating: 1/3 HP at 125 VAC, 1/4 HP at 250 VAC. For repetitive motor switching a contactor is the better choice — a basic switch's contact life is specified for resistive loads and will shorten under inductive motor inrush.
What torque and wire size for the screw terminals?
M3.5 screw terminals: torque 0.4 to 0.6 N·m. Wire 18 to 14 AWG solid or stranded, use ferrules on stranded wire for a reliable connection.
Similar Products
Explore related Omron models often viewed alongside this product.
