Product Overview
The TZ-8107 is a vertical limit switch equipped with a flexible rod actuator. It is used for mechanical position detection, stroke limit control, and machine operation feedback in industrial automation equipment. The flexible rod actuator is suitable for applications where the moving part may contact the switch from different directions or where a wider actuation tolerance is required.
This page describes model TZ-8107 only. The product is suitable for conveyors, packaging machines, machine tools, automation mechanisms, door position detection, and other industrial control systems that require mechanical position sensing with flexible actuation.
Key Technical Data
| Item | TZ-8107 |
|---|---|
| Product type | Vertical limit switch |
| Actuator type | Flexible rod actuator |
| Contact form | 1NO + 1NC |
| NO terminal | 13–14 |
| NC terminal | 11–12 |
| Protection degree | IP65 |
| Operating force | 5.88N max. |
| Release force | 0.69N min. |
| Pre-travel | 20° max. |
| Overtravel | 75° min. |
| Movement differential | 10° max. |
| Total travel | 95° min. |
| Electrical life | 500,000 operations or above |
Product Display
The TZ-8107 uses a vertical switch body with a flexible rod actuator. The product structure includes a reinforced housing, aluminum alloy mounting base, rod actuator mechanism, terminal cover, and conduit section for wiring.
Features
- Double-circuit contact structure for NO and NC control logic.
- Flexible rod actuator for mechanical position detection with wider actuation tolerance.
- Suitable for applications where the moving part may contact the actuator from different directions.
- Built-in contact box with double-spring mechanism for stable contact action.
- Reinforced plastic housing and aluminum alloy base for mechanical strength.
- Compact body structure suitable for industrial equipment installation.
- Water-proof and oil-proof construction for general industrial environments.
- IP65 protection degree when properly installed and sealed.
- Conduit design for convenient field wiring.
- The TZ-8 series provides other actuator configurations for different machine structures. This page focuses on the TZ-8107 flexible rod type.
Drawing
Outline and Mounting Dimensions
The drawing is used to confirm the outline structure, mounting hole position, actuator length, flexible rod movement space, and cable entry direction of the TZ-8107. Before installation, check that the moving mechanical part can contact the rod smoothly without excessive impact or permanent deformation.
Before installation, check the mounting hole position, actuator clearance, cable entry direction, and operating angle of the flexible rod. The actuator should be contacted smoothly by the moving mechanical part and must be allowed to return reliably after operation.
Contact Form
TZ-8107 uses a double-circuit contact structure with one normally open contact and one normally closed contact. The normally open contact uses terminals 13–14 and closes when the actuator is operated. The normally closed contact uses terminals 11–12 and opens when the actuator is operated.
Wiring logic should be selected according to the control circuit. Safety-related circuits often use NC logic, but the final selection should follow the electrical design of the equipment.
Ratings
Rated Load Table
| Rated
Voltage |
Resistance
Load NC |
Resistance
Load NO |
Lamp
Load NC |
Lamp
Load NO |
Inductive
Load NC |
Inductive
Load NO |
Motor
Load NC |
Motor
Load NO |
|---|---|---|---|---|---|---|---|---|
| 125VAC | 5A | 5A | 1.5A | 0.7A | 3A | 3A | 2A | 1A |
| 250VAC | 5A | 5A | 1A | 0.5A | 3A | 3A | 1.5A | 0.8A |
| 8VDC | 5A | 5A | 3A | 3A | 5A | 4A | 3A | 3A |
| 14VDC | 5A | 5A | 3A | 3A | 4A | 4A | 3A | 3A |
| 30VDC | 5A | 5A | 3A | 3A | 4A | 4A | 3A | 3A |
| 125VDC | 0.4A | 0.4A | – | – | – | – | – | – |
| 250VDC | 0.2A | 0.2A | – | – | – | – | – | – |
Load Notes
- Inrush current: NC below 24A, NO below 12A.
- Inductive load has a power factor of 0.4 minimum for AC and a time constant of 7 ms maximum for DC.
- Lamp load inrush current is approximately 10 times the steady-state current.
- Motor load inrush current is approximately 6 times the steady-state current.
- For inductive, lamp, or motor loads, the inrush current should be considered during circuit design.
Specifications
Electrical
| Item | Specification |
|---|---|
| Contact resistance | 25 mΩ max., initial value |
| Insulation resistance | 100 MΩ min. at 500 VDC |
| Dielectric strength 1 | 1000 VAC, 50/60 Hz for 1 minute between terminals of the same polarity |
| Dielectric strength 2 | 1500 VAC, 50/60 Hz for 1 minute between current-carrying and non-current-carrying metal parts |
| Dielectric strength 3 | 1500 VAC, 50/60 Hz for 1 minute between each terminal and ground |
| Electrical life | 500,000 operations or above |
Mechanical
| Item | Specification |
|---|---|
| Operating speed | 0.5 mm to 0.5 m/s |
| Operating frequency | Electrical: 30 operations/min |
| Vibration | 10–55 Hz, 1.5 mm double amplitude |
| Shock durability | 1000 m/s², approx. 100G |
| Shock malfunction | 300 m/s², approx. 30G |
| Weight | About 130 to 190 g |
Environmental
| Item | Specification |
|---|---|
| Ambient temperature | -5°C to +65°C, with no icing |
| Humidity | <95% RH |
| Degree of protection | IP65 |
Operating Characteristics
The following operating characteristics apply to model TZ-8107 only. The mechanical stroke and actuator position should be checked according to the installation direction and the moving part of the machine.
| Parameter | Description | TZ-8107 |
|---|---|---|
| OF | Operating force, maximum | 5.88N |
| RF | Release force, minimum | 0.69N |
| PT | Pre-travel, maximum | 20° |
| OT | Overtravel, minimum | 75° |
| MD | Movement differential, maximum | 10° |
| TT | Total travel, minimum | 95° |
| OP | Operating position | Refer to drawing |
Selection Guide
Actuator and Motion Direction
TZ-8107 uses a flexible rod actuator. It is suitable when the detected object may contact the actuator from different directions or when a wider mechanical tolerance is required. The rod should be contacted smoothly and must not be used as a rigid stopper for heavy impact.
Electrical Load and Contact Rating
Before selecting TZ-8107, confirm whether the circuit is AC or DC, the operating voltage, current, load type, and whether the control system uses NO or NC logic. For motor, lamp, or inductive loads, select the switch according to the inrush current and not only the steady-state current.
Stroke, Overtravel and Reset
For TZ-8107, the pre-travel is 20° maximum, overtravel is 75° minimum, movement differential is 10° maximum, and total travel is 95° minimum. The actuator must return reliably after operation. Avoid bending the rod beyond the usable operating range.
Installation Environment
TZ-8107 has an IP65 protection degree and is suitable for industrial environments with dust, oil mist, and light water exposure. It is not designed for continuous immersion. Avoid direct high-pressure water jet unless additional protection is used. The cable entry must be properly sealed.
Wiring and Contact Logic
The normally open contact uses terminals 13–14, and the normally closed contact uses terminals 11–12. Select the contact logic according to the control circuit. Safety or fault-detection circuits often use NC logic, but the final wiring method must follow the machine electrical design.