Omron Z-15GQ-B — 15 A SPDT Panel Mount Plunger Switch
SKU: Z-15GQ-BUSD 4.00
Z-series general-purpose basic switch, 15 A SPDT (COM/NO/NC), panel-mount plunger, medium operating position, 250-350 gf operating force
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Product Overview
The Omron Z-15GQ-B is a panel-mount plunger basic switch from Omron's Z-series — the workhorse general-purpose snap-action switch that has been in continuous production since the 1950s and is the de-facto standard for machine builders worldwide. 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.
The switch carries a 15 A resistive load at 250 VAC (or 15 A at 125 VDC,
The Z-15GQ-B ships from Xiamen with full datasheet documentation. Second, the 15 A rating is for resistive loads only — for inductive AC loads (solenoids, motor contactor coils) derate to 6 A, and for inductive DC loads (relay coils, solenoids) derate even further because DC arcs do not self-extinguish at current zero.
Key Features
- Medium operating position 1.6 to 2.0 mm from mounting face
- Pretravel 0.4 mm, overtravel 5.5 mm, differential travel 0.05 mm
- 15 A rated contact current at 250 VAC / 125 VDC
- Release force 114 gf minimum
- SKU: Z-15GQ-B
- Series: Z (General-purpose basic switch)
Best-Fit Applications
- Cam-actuated index position sensor on a rotary indexing table — uses Z-15GQ22-B roller plunger sibling for cam applications
- Conveyor pallet-detect station — plunger depressed by the pallet passing over
- Limit switch position on a linear slide or pick-and-place axis — detects end-of-travel
Buying Checklist
- Pick Z-15GQ8-B for high operating position with field-adjustable plunger
- Pick Z-15GQ3-B for low operating position — early contact closure
- Pick Z-15GQ22-B for a panel-mount roller plunger — for cam-actuated applications
Technical Specifications
| Model | Z-15GQ-B |
|---|---|
| Series | Z (General-purpose basic switch) |
| Type | Basic switch, panel-mount plunger, SPDT |
| Contact Configuration | SPDT (COM / NO / NC) |
| Rated Load (Resistive) | 15 A at 250 VAC / 15 A at 125 VDC |
| Rated Load (Inductive) | 6 A at 250 VAC (cos φ = 0.4) |
| Operating Force (OF) | 250 to 350 gf |
| Release Force (RF) | 114 gf minimum |
| Terminal Type | M4 screw |
| Mounting Hole Pattern | 25.4 mm centres (M4 with plane washer) |
| Body Mounting Thread | M12 × 0.75 (panel-mount hex nut) |
| Operating Temperature | -25 to +80 °C |
| IP Rating | IP00 (no environmental protection) |
| Dimensions (Body) | Approx. 49.2 × 17.45 × 24.2 mm (without plunger) |
| Certifications | UL, CSA, CCC, CE |
FAQ for Z-15GQ-B
What's the difference between Z-15GQ-B and Z-15GQ?
The Z-15GQ-B is the modern full-specification variant of the basic Z-15GQ. Mechanically and electrically they are nearly identical — same 15 A contact rating, same 250-350 gf operating force, same SPDT contact set, same panel-mount body. The -B version has slightly improved terminal marking, a tighter tolerance on the operating force window, and updated agency certifications (UL, CSA, CCC, CE on the -B version).
What is the maximum current the Z-15GQ-B can switch?
15 A resistive at 250 VAC or 15 A resistive at 125 VDC. For inductive AC loads (solenoids, contactor coils, motor windings), derate to 6 A at 250 VAC. For inductive DC loads, derate further — the Z-15GQ-B is rated for 6 A at 30 VDC inductive, and DC arcs do not self-extinguish at current zero so contact life drops rapidly with DC inductive loads.
Is the Z-15GQ-B waterproof or dustproof?
No — the Z-15GQ-B is IP00 rated, meaning it has no protection against dust or water ingress. The switch body has open screw terminals on the rear and a plunger opening on the front.
Can the Z-15GQ-B be used as a safety switch?
No — the Z-15GQ-B is a basic switch, not a safety-rated switch. It does not have positively-driven (force-guided) contacts, it is not certified to EN 60947-5-1 or ISO 13849-1, and it does not have the redundancy and monitoring features required for safety functions.
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