Product Overview
The TM-1308 is a roller plunger horizontal micro switch designed for industrial control and automation applications. It uses a snap-action contact mechanism and roller plunger actuator to provide reliable mechanical position detection and switching performance.
This page describes model TM-1308 only. The micro switch is suitable for industrial equipment, automation mechanisms, mechanical travel detection, and control systems requiring smooth actuator contact.
Product Display
The TM-1308 features a compact horizontal body structure with a roller plunger actuator, precision contact mechanism, and terminal connection design. The roller structure allows smooth mechanical contact with moving machine parts.
Key Technical Data
| Item | TM-1308 |
|---|---|
| Product type | Horizontal micro switch |
| Actuator type | Roller plunger actuator |
| Contact form | Snap-action contact |
| Operating force | 350g max. |
| Release force | 114g min. |
| Pre-travel | 0.4mm max. |
| Overtravel | 3.58mm min. |
| Movement differential | 0.05mm max. |
| Operating position | 33.4 ± 1.2mm |
Features
- Roller plunger actuator for smooth mechanical contact.
- Compact horizontal micro switch structure.
- Snap-action contact mechanism for stable electrical switching.
- Reliable position detection for industrial automation systems.
- High accuracy operation with wide operating speed range.
- Suitable for equipment control, mechanical detection, and automation applications.
Drawing
Outline and Mounting Dimensions
The drawing provides the body dimensions, roller plunger position, mounting holes, and terminal arrangement of the TM-1308. Confirm the mechanical clearance and actuator movement direction before installation.
Contact Form
The TM-1308 uses a snap-action contact mechanism. The contact state changes when the roller plunger actuator reaches the operating position.
Select the contact configuration according to the electrical requirements of the equipment.
Ratings
| 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 | 15 | 15 | 3 | 1.5 | 15 | 15 | 5 | 2.5 |
| 250VAC | 15 | 15 | 2.5 | 1.25 | 15 | 15 | 3 | 1.5 |
| 500VAC | 3 | 3 | 1.5 | 0.75 | 2.5 | 2.5 | 1.5 | 0.75 |
| 8VDC | 15 | 15 | 3 | 1.5 | 15 | 10 | 5 | 2.5 |
Specifications
Electrical
| Contact resistance | 15 mΩ max. initial value |
| Insulation resistance | 100 MΩ min. at 500VDC |
| Operating frequency | Mechanical: 120 operations/min; Electrical: 30 operations/min |
| Dielectric strength | 1000VAC between same polarity terminals; 1500VAC between current and non-current parts |
Mechanical
| Operating speed | 1mm to 2m/s |
| Vibration | 10-55Hz, 1.5mm double amplitude |
| Shock | Mechanical durability approx. 100G; malfunction approx. 30G |
Environmental
| Ambient temperature | -10°C to +80°C, with no icing |
| Humidity | <95% RH |
| Degree of protection | IP65 |
Operating Characteristics
| Parameter | Description | TM-1308 |
|---|---|---|
| OF | Operating force | 350g max. |
| RF | Release force | 114g min. |
| PT | Pre-travel | 0.4mm max. |
| OT | Overtravel | 3.58mm min. |
| MD | Movement differential | 0.05mm max. |
| OP | Operating position | 33.4 ± 1.2mm |
Selection Guide
Actuator Type
Select TM-1308 when a roller plunger actuator is required for smooth mechanical contact and flexible position detection.
Operating Stroke
Confirm the required pre-travel, overtravel, and operating position according to the mechanical movement of the equipment.
Electrical Load
Check voltage, current, load type, and switching frequency before selection. Inductive loads should consider surge conditions.
Installation Environment
Ensure the switch is installed within the specified temperature, humidity, and mechanical conditions.
Application Matching
TM-1308 is suitable for automation systems, industrial equipment, mechanical detection, and control applications.