Application-Based Selection
The THH1-200 is specified for auxiliary circuits in trucks, buses, recreational vehicles and marine equipment.
PRODUCT LINE / CUSTOM SOLUTIONS / TECHNICAL SUPPORT
OEM & Custom Solutions
Explore product specifications, application requirements and customization options for your equipment.
FOR OEMS / REF 04
THH1-200 Circuit Breaker
Used to protect equipment and systems against damage from overloads, short circuits, and other faults.
- Application-based electrical specification review
- Electrical and mechanical compatibility
- Technical discussion for OEM requirements
- Sample evaluation and bulk sourcing coordination
Circuit Breaker Specifications
Check the rated circuit voltage, operating current and trip characteristics against the intended installation.
THH1-200 Circuit Breaker
- Rated value
- 200 A at 48 V DC
- Protection rating
- IP67
- Operating temperature
- −32 °C to +82 °C
| Configuration | Single-pole normally closed, with manual switch |
|---|---|
| Rating | 200 A at 48 V DC |
| Trip current at 25 °C | 135% of rated current |
| Holding current | 100% of rated current |
| Protection rating | IP67 |
| Operating temperature | −32 °C to +82 °C |
| Storage temperature | −34 °C to +149 °C |
Features
- Fully sealed construction, protection rating IP67.
- UL94V thermoplastic housing.
- Suitable for auxiliary circuits in trucks, buses, RV systems, and marine applications.
- Single-pole normally closed type with manual switch
- Rating: 200A @ 48VDC
- Trip current @ 25°C: 135% of rated current
- Holding current: 100% of rated current
- Protection rating: IP67
- Operating temperature: –32°C to +82°C
- Storage temperature: –34°C to +149°C
| Bolt Type | Bolt Specification | Quantity | Tightening Torque (N·m) |
|---|---|---|---|
| Terminal bolt | 3/8″-16 | 2 | 8.5 max |
- Rated Current Percentage vs. Trip Time
- Outline Dimension Drawing
- Precautions for Use
- ※ When installing the product, be sure to use washers to prevent the mounting bolts from loosening. The tightening torque of the bolts must be kept within the specified range; exceeding the maximum torque may cause the product to crack.
- ※ Avoid installing the product in areas directly exposed to rain, in strong magnetic fields, or near objects that emit thermal radiation.
- ※ Do not allow foreign matter or oil to contaminate the main contact terminals. In addition, external wiring terminals must make reliable contact with the main contact terminals of the product; otherwise, abnormal heating at the terminals may occur.
Please refer to the technical datasheet for the exact ratings and operating conditions of each model.
TECHNICAL DRAWINGS
Drawings & diagrams
Open a figure to inspect the dimensions and configuration details.
Designed Around Your
Equipment Requirements
Electrical and Mechanical Compatibility
Check the rated circuit voltage, operating current and trip characteristics against the intended installation.
OEM and Customization Support
Discuss your application, technical parameters and installation constraints with our team. Available options depend on the product platform, engineering feasibility and order requirements.
Circuit Breaker
Applications
- Truck and bus auxiliary circuits
- Recreational vehicles
- Marine auxiliary circuits
The THH1-200 is specified for auxiliary circuits in trucks, buses, recreational vehicles and marine equipment.
OEM Circuit Breaker
Sourcing
For equipment manufacturers, consistent specifications and reliable supply arrangements are important throughout the product lifecycle.
When evaluating a supplier, consider technical documentation, sample verification, production consistency, customization feasibility and long-term sourcing requirements.
FAQ
Frequently
Asked
Questions
Discuss your requirements
Send us your specifications, drawings or existing part number to discuss product suitability, customization feasibility and quotation requirements.
Request a quoteWhat should I check before selecting this breaker?
Check the rated circuit voltage, operating current and trip characteristics against the intended installation.
Can I request a customized contactor?
Customization depends on the model and technical requirements. Share your specifications or drawings so the feasibility of your requested configuration can be reviewed.
Can I request samples before bulk purchasing?
Sample availability, cost and lead time should be confirmed for the selected model before placing an order.
What information is needed for a quotation?
Provide the model number, required quantity, electrical specifications, intended application and any special technical or packaging requirements.