1. Introduction
This manual provides essential information for the safe and effective use of your Baomain SPST ON-OFF Toggle Switch. This switch is designed for durability and reliability in various electrical systems, including household appliances, industrial equipment, and electronic projects. Please read this manual thoroughly before installation and operation.

Image 1: Baomain SPST ON-OFF Toggle Switch. This image displays the toggle switch from a front-side angle, showing the metal lever, mounting nut, and the black switch body with 'ON' and 'OFF' markings and electrical ratings.
2. Product Features
- Easy Installation: Features a compact 2-pin SPST (Single Pole Single Throw) ON-OFF design for straightforward wiring.
- Durable Performance: Rated for 15A at 250V AC, ensuring stable operation in various applications.
- Long Electrical Life: Designed for up to 50,000 cycles, providing consistent switching performance.
- Wide Temperature Tolerance: Operates reliably in temperatures ranging from -25°C to 85°C (-13°F to 185°F).
- Versatile Indoor Use: Suitable for custom dashboards, DIY electronics projects, and home consoles where moisture exposure is not a concern.

Image 2: Premium Silver Contacts. This image highlights the silver-plated contacts on the underside of the switch, indicating improved high-frequency performance and stability.

Image 3: Flame-Retardant Casing. This image shows multiple toggle switches against a fiery background, illustrating the high-temperature resistant insulated casing material.
3. Specifications
| Specification | Detail |
|---|---|
| Model Number | C511A |
| Voltage Rating | 250 Volts AC |
| Current Rating | 15 Amperes |
| Switch Type | SPST ON-OFF Toggle |
| Number of Pins | 2 |
| Terminal Type | Spade (1/4" tab) |
| Mounting Type | Through Hole Mount (12mm diameter) |
| Material | Copper, Plastic |
| Operating Temperature | -25°C to 85°C (-13°F to 185°F) |
| Electrical Life | 50,000 cycles |
| Product Dimensions | 2.47 x 1.14 x 0.59 inches; 1.12 ounces |

Image 4: Toggle Switch Dimensions. This diagram illustrates the physical dimensions of the toggle switch, including overall height (59mm), body length (28.5mm), mounting hole diameter (12mm), and terminal width (1/4 inch).
4. Package Contents
- 1 x Baomain SPST ON-OFF Toggle Switch
5. Installation
Installation should be performed by a qualified individual familiar with electrical wiring and safety procedures. Ensure power is disconnected before beginning installation.
- Prepare Mounting Hole: Drill a 12mm (approximately 0.47 inches) diameter hole in the desired mounting surface.
- Insert Switch: Insert the threaded portion of the toggle switch through the prepared hole.
- Secure Switch: Place the washer and nut onto the threaded portion and tighten securely to hold the switch in place.
- Wire Connections: Connect your electrical wires to the 1/4" tab terminals. Ensure proper polarity and secure connections. This is an SPST (Single Pole Single Throw) switch, meaning it has two terminals for a simple ON-OFF circuit.

Image 5: Product Structure. This diagram labels the key components of the toggle switch: Lever, Nut, Indication Plate, Built-in Spring, Crust (body), and Terminal.
6. Operation
The Baomain SPST Toggle Switch operates with a simple ON-OFF mechanism. To operate:
- Move the lever to the 'ON' position to close the circuit and allow current to flow.
- Move the lever to the 'OFF' position to open the circuit and stop current flow.

Image 6: SPST 2 Terminal Operation. This image demonstrates the ON and OFF positions of the toggle switch lever, clarifying its single-pole, single-throw functionality.
7. Applications
This toggle switch is suitable for a wide range of applications, including but not limited to:
- Automotive and Marine systems (e.g., controlling lights, pumps)
- Household Appliances
- Industrial Equipment (e.g., control panels, machinery)
- Electronic Projects and DIY setups
- Generators and Mowers

Image 7: Diverse Applications. This image shows examples of the toggle switch being used in a boat, a mower, a generator, and an instrument panel.

Image 8: Industrial and Audio Applications. This image illustrates the toggle switch's use in a control cabinet, music equipment, a boat dashboard, and CNC machinery.
8. Safety Information
- Always disconnect power to the circuit before installing, wiring, or performing maintenance on the switch.
- Ensure the switch's voltage and current ratings are compatible with your application to prevent damage or hazards.
- Do not use this switch in environments where it may be exposed to moisture or corrosive substances, as it is designed for indoor, dry applications.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- If you are unsure about any aspect of installation or wiring, consult a qualified electrician.
9. Maintenance
The Baomain Toggle Switch is designed for minimal maintenance. Periodically inspect the switch and its connections for any signs of wear, damage, or loose wiring. Clean the exterior of the switch with a dry, soft cloth if necessary. Do not use liquid cleaners or solvents.
10. Troubleshooting
- Switch Not Functioning:
- Check all wiring connections for security and proper contact.
- Verify that power is supplied to the circuit.
- Ensure the switch's ratings (voltage/current) are not exceeded by the load.
- Intermittent Operation:
- Inspect for loose connections or damaged wires.
- Check for any physical obstruction preventing the lever from fully engaging.
If issues persist, discontinue use and consult a qualified technician or contact Baomain customer support.