OMRON SS-5 Micro Limit Switch SPDT Chassis Mount 5A 125V
The OMRON SS-5 is a subminiature basic switch designed to provide reliable mechanical switching in applications where installation space is limited. It uses an SPDT contact configuration, allowing a common terminal to switch between normally open (NO) and normally closed (NC) contacts. The SS series is available in multiple actuator and terminal configurations, while the SS-5 rating corresponds to 5 A at 125 VAC.
The switch uses a snap-action mechanism that changes the contact state when the actuator is pressed and returns when the actuator is released. This makes it suitable for detecting the position or movement of mechanical components, doors, covers, levers, mechanisms, and equipment parts. OMRON specifies high mechanical durability for the SS series, with split-spring construction intended to provide stable switching performance.
Features:
- Compact subminiature design.
- SPDT switching configuration.
- Snap-action switching mechanism.
- Suitable for position and limit detection.
- Supports NO and NC switching.
- Available with different actuator configurations.
- Suitable for compact mechanical assemblies.
- Reliable contact switching.
- Suitable for interlock applications.
Specifications:
| Parameter | Specification |
|---|---|
| Manufacturer | OMRON |
| Series | SS |
| Model | SS-5 |
| Switch Type | Subminiature Basic Switch |
| Contact Form | SPDT |
| Rated Voltage | 125VAC |
| Rated Current | 5A |
| Contact Configuration | 1 Form C |
| Actuation Type | Snap Action |
| Standard Actuator | Pin Plunger |
| Standard Termination | Solder Terminals |
| Operating Temperature | -25°C to +85°C* |
| Mechanical Durability | Up to 30,000,000 operations* |
| Mounting Type | Chassis Mount |
| Contact Material | Silver alloy / silver depending on model |
| Minimum Applicable Load | 5 VDC, 160 mA* |
Pinout:
| Terminal | Name | Description |
|---|---|---|
| 1 | COM | Common terminal |
| 2 | NC | Normally Closed contact; connected to COM when actuator is released |
| 3 | NO | Normally Open contact; connected to COM when actuator is pressed |
Applications:
- Mechanical limit detection.
- Position sensing.
- Door and cover detection.
- Safety interlocking.
- Printer mechanisms.
- Industrial equipment.
- Control panels.
- Small appliances.
- Robotics mechanisms.
- CNC and 3D printer mechanisms.
- End-stop detection.
- Mechanical actuator detection.
Package Includes:
- 1x OMRON SS-5 Micro Limit Switch SPDT Chassis Mount 5A 125V.

