TZ-3111 Stainless steel round button plunger waterproof limit switch
■ Sealing characteristics that meet IEC IP67 degree of protection.
■ Triple-sealed construction:
■ Plunger section sealed via nitrile rubber packing seal and diaphragm; switch section sealed via nitrile rubber cap; cable entrance sealed via encapsulating material.
■ Cable lengths of 3 and 5 m available on standard models.
■ Multiple mounting possible with Switches with Plungers.
■ Contact Form:
Product List
Technical Parameters
Ratings
| Rated voltage | Noninductive Load (A) | Inductive Load (A) | ||||||
| Resistance Load | Lamp Load | Inductive Load (A) | Motor Load | |||||
| NC | NO | NC | NO | NC | NO | NC | NO | |
| 125 VAC | 5 (0.1) | 1.5 | 0.7 | 3 | 2.5 | 1.3 | ||
| 250 VAC | 3 | 1 | 0.5 | 2 | 1.5 | 0.8 | ||
| 8 VDC | 5 (0.1) | 2 | 5 | 4 | 3 | |||
| 14 VDC | 5 (0.1) | 2 | 4 | 4 | 3 | |||
| 30 VDC | 4 (0.1) | 2 | 3 | 3 | 3 | |||
| 125 VDC | 0.4 | 0.05 | 0.4 | 0.4 | 0.05 | |||
| 250 VDC | 0.2 | 0.03 | 0.2 | 0.2 | 0.03 | |||
| Surge current | NC | 20A (under) | ||||||
| NO | 10A (under) | |||||||
Characteristics
| Rating | 5A 125V,3A 250VAC |
| Operating speed | 1mm~1m/s |
| Operating frequency | Mechanical:120 operations/min. Electrical:30 operations/min. |
| Contact resistance | 15mΩ max.(initial) |
| Inslation resistance | 100mΩ Min.(at 500VDC) |
| Dielectric strength | 50/60 Hz for 1 minute between terminals of the same polarity |
| 50/60 Hz for 1 minute between current-carrying and non-current-carrying metal parts | |
| 1500VAC, 50/60 Hz for 1 minute between each terminal and ground | |
| Vibration Frequency | 10 to 55HZ,1.5mm double amplitude |
| Shock | Mechanical:Approx.1000m/s2 (Appprox.100G'S) Electrical:Approx.500m/s2 (Approx.50G'S) |
| Ambienttemperature | -10℃~+70 ℃ (With no icing) |
| Humidity | < 95% RH |
| Weight | Approx.360g(cable length 3m) Approx.540g(cable length 5m) |
| Degree of protection | IP67 |
Operating Characteristics
| Operating Characteristics | Model | TZ-3101 | TZ-3102 | TZ-3103 | 310,431,073,108 | TZ-3111 | TZ-3112 | TZ-3113 | TZ-3166,3169 |
| Operating force | OF (Max) | 11.77N | 11.77N | 11.77N | 5.69N | 17.65N | 17.65N | 17.65N | 1.47N |
| Release force | RF (Min) | 4.41N | 4.41N | 4.41N | 1.47N | 4.41N | 4.41N | 4.41N | 一 |
| Pre-travel | PT (Max) | 1.8mm | 1.8mm | 1.8mm | 25° | 1.8mm | 1.8mm | 1.8mm | 15° |
| Over-travel | OT (Min) | 3mm | 3mm | 3mm | 40° | 3mm | 3mm | 3mm | 一 |
| Movement differential | MD(Max) | 0.2mm | 0.2mm | 0.2mm | 3° | 0.2mm | 0.2mm | 0.2mm | 一 |
| Operational position | OP | 15.7±1mm | 28.5±1mm | 28.5±1mm | 一 | 24.9±1mm(5) | 34.3±1mm(5) | 34.3±1mm(5) | 一 |
| mm | mm | mm |
NOTE: TZ-3104 the action characteristic of the swing rod for length 38mm.
Key Features of TZ-3 Waterproof Limit Switch
The TZ-3 series is specifically designed for harsh industrial environments where standard limit switches fail. It combines high sealing performance, mechanical durability, and stable electrical operation.
1. IP67 Fully Sealed Protection – Designed to operate even in wet or submerged environments, preventing water, dust, and oil ingress.
2. Triple Sealing Structure – Critical parts are protected with resin sealing, rubber packing, and encapsulated cable entry to ensure long-term waterproof reliability.
3. Rugged Aluminum Alloy Housing – High mechanical strength and excellent resistance to shock and vibration for heavy-duty industrial use.
4. Stable Electrical Performance – Rated up to 5A 250VAC with long mechanical and electrical life, ensuring reliable switching in automation systems.
5. Multiple Actuator Options – Available in plunger, roller plunger, and lever types to suit different installation and motion detection needs.
6. Wide Environmental Adaptability – Works reliably in high humidity, dust, oil, and temperature variations.
Typical Applications
The TZ-3 waterproof limit switch is ideal for applications where equipment is exposed to water, humidity, or harsh industrial conditions.
1. Marine & Offshore Equipment
Reliable operation in environments exposed to water spray or temporary submersion.
2. Outdoor Machinery
Suitable for construction equipment, agricultural machinery, and outdoor automation systems.
3. Food & Beverage Processing
Designed for washdown environments where hygiene and water resistance are required.
4. Industrial Automation
Used in machine tools, automated production lines, and robotics for precise position control.
5. Elevators & Lifting Systems
Ensures accurate travel limit control and safety in vertical motion systems.
When should you choose TZ-3 instead of a standard limit switch?
If your application involves moisture, water exposure, or no protective enclosure, TZ-3 is the preferred solution.
Why Choose TMAZTZ？
We are a professional manufacturer specializing in industrial limit switches with a strong focus on quality, reliability, and long-term cooperation.
1. Specialized Manufacturer
Focused on R&D and production of limit switches, micro switches, and waterproof switches for industrial applications.
2. Strict Quality Control
Each product undergoes multiple tests including cable pull, bending, and sealing inspection to ensure waterproof integrity and durability.
3. Certified Quality
Products comply with international standards such as CE, TUV, CCC, and RoHS.
4. Stable Supply & Consistency
Mass production capability ensures consistent quality across batches, suitable for long-term procurement.
5. Customization Available
Flexible actuator types, cable length, and configurations to meet different project requirements.
6. Reliable Partner
We aim to build long-term cooperation by delivering stable quality and responsive support.