TSA3 Series

Primary standard limit switch platform

Full-size zinc-alloy body limit switch with IP65 sealing and interchangeable actuator heads. The most widely specified series for general industrial position sensing across machine tools, packaging equipment, material handling, and elevator systems.

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FULL SPECIFICATIONS

Everything you need to confirm compatibility.

Electrical

Rated voltage	AC 380V / DC 220V
Rated current (AC-15)	10A
Rated current (DC-13)	0.5A
Contact configuration	1NO+1NC / 2NO+2NC
Contact type	Snap-action / Slow-break
Insulation resistance	≥ 100 MΩ (500V DC)
Dielectric strength	2500V AC, 1 minute

Mechanical

Housing material	Zinc-alloy base, PBT cover
Actuator mounting	4-position, 90° rotation
Cable entry	M20 / PG13.5 / NPT 1/2
Terminal type	Screw terminal, M3.5
Operating force	Depends on actuator type
Mechanical life	Millions of cycles
Mounting	2 x M5 or 2 x M4 screws

Environmental

Protection grade	IP65 (IEC 60529)
Operating temperature	Standard industrial range
Humidity	Up to 95% RH (non-condensing)
Pollution degree	3 (IEC 60947-1)

Compliance

Standards	IEC 60947-5-1, GB 14048.5
Certifications	CE, CB, TUV (selected models)
Traceability	Date code on every unit

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	—	—	—	—	—

DOWNLOADS

Drawings, models, and documentation.

Datasheet

Complete electrical ratings, operating curves, material specifications, and ordering codes for all TZ-8 variants.

Download Datasheet

Certification Documents

CE declaration, CB test report, and TUV certificate for models that carry safety ratings. Current and annually audited.

Download Certificates

FAQ

Frequently Asked Questions.

Is stainless steel roller better than nylon roller?

No, the cost of metal is higher, but just a difference in raw materials, not related to A or B class.

In some situations, we prefer the nylon one.

Are there any accessories for mounting?

yes, there is a bag of screws, and a separate packaging, convenient for your preservation.

Ready to order or need a sample?

Tell us your actuator preference, contact configuration, and cable entry type. We will confirm the exact model code, price, and lead time. Standard samples ship within 3 working days.