TZ-8 Miniature Vertical Limit Switch

Compact design roughly one third the size of a standard vertical limit switch. The terminal section opens fully for fast wiring on tight production lines.

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LIMIT SWITCH：

TZ-8 Series Models

TZ-8 Series

TSA3 Series

TZ-8 Series

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WHAT MAKES THE TZ-8 SERIES

Six design decisions that set this series apart.

Sealing at every seam

Rubber rings sit between the head and cover plate, and around the plunger opening. They hold an IP65 seal. The housing stays compact.

Riveted contacts, positioned by press

A precision riveting press positions each contact point dead center. Screw-mounted contacts leave alignment to the worker's hand. A dedicated machine removes the guesswork from every unit.

Zinc alloy base with reinforced plastic shell

The base takes the mechanical load. The shell keeps weight and cost in check. Together they hit a balance that works for most indoor industrial environments.

Forced disconnect as a structural guarantee

Even if contacts weld under fault current, the internal mechanism physically separates them when the plunger is pressed. A mechanical fail-safe built into the structure.

Adjustable lever length and angle

The operating lever length adjusts to the mounting environment. Angle is field-adjustable too, which cuts rework during installation.

Terminal section opens fully

The cover removes completely to expose all terminals. Wiring happens with both hands free and clear sight lines. A small detail that cuts installation time on busy production floors.

MODEL COMPARISON

Compare models by operating force and travel.

All models share the same contact form (1NO+1NC), IP65 sealing, and zinc-alloy base. The actuator type and operating force are what differentiate them.

Model		TZ-8104	TZ-8107	TZ-8108	TZ-8111	TZ-8112	TZ-8122	TZ-8166	TZ-8167	TZ-8168	TZ-8169
Operating Force	OF (Max)	5.88N	5.88N	7.84N	9.8N	9.8N	9.8N	0.88N	0.88N	0.88N	0.88N
Release Force	RF (Min)	0.49N	0.69N	0.49N	2.94N	2.94N	2.94N	—	—	—	—
Pretravel	PT (Max)	20°	20°	20°	1.5mm	1.5mm	1.5mm	30mm	30mm	30mm	30mm
Overtravel	OT (Min)	75°	75°	75°	4mm	4mm	4mm	—	—	—	—
Movement Differential	MD (Max)	10°	10°	10°	1.2mm	1.2mm	1.2mm	—	—	—	—
Total Travel	TT (Min)	95°	95°	95°	5.5mm	5.5mm	5.5mm	—	—	—	—
Operating Position	OP	—	—	—	26 + 0.8mm	37 + 0.8mm	—	—	—	—	—

WHERE TZ-8 FITS

Where the compact size changes what is possible.

CNC & Machine Tools

Coolant spray and vibration are daily conditions. A control cabinet retrofit chose TZ-8122 over a micro switch for longer service intervals between replacements.

CNC applications

Injection Molding

Detecting mold open and close position on machines that cycle thousands of times a day. The compact TZ-8 body fits where larger limit switches cannot go.

Injection molding

Automated Parking Systems

Pallet positioning inside parking towers where mounting depth is limited. An initial TZ-8108 sample was upgraded to TZ-8122 when the client needed more travel distance.

Parking systems

Quick Model Selection Guide.

Not sure which TZ-8 limit switch fits your application? Match your actuation conditions below to shortlist the right model in minutes.

Vertical (up-and-down) striker actuation

Choose a plunger-type model:

TZ-8111

TZ-8112

TZ-8122

Strikers with large runout or bouncing

Choose a high-overtravel roller-lever model:

TZ-8166

TZ-8167

TZ-8168

TZ-8169

General position detection of strikers and workpieces

Standard roller-lever model for most routine applications:

TZ-8104

Mounting where the lever position cannot be predetermined

Choose an adjustable-actuator model:

TZ-8108

TZ-8107

Still unsure? Share your travel, operating force, and mounting space requirements — our application engineers will help you finalize the model.

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DOCUMENTATION

Certifications

TMAZTZ products comply with international standards. View and download the latest certification documents.

Downloads

Product Technical Documentation.