100A 12V/24V/48V Automatic over-current DC circuit breaker / switch
100A 12V/24V/48V Automatic over-current DC circuit breaker / switch
SKU:CB100
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Photonic Universe DC Protection
100A 12V/24V/48V Automatic Over-Current DC Circuit Breaker / Switch
Resettable Over-Current Protection | Manual On/Off Isolation | IP67 Rated
The Photonic Universe 100A DC Circuit Breaker (SKU: CB100) is a versatile protection device designed for a wide range of DC electrical systems. This unit functions as both a resettable 100A fuse and a manual On/Off switch, providing essential over-current protection and circuit isolation in one compact component. It is compatible with DC system voltages from 12V to 48V, making it suitable for various applications including solar, automotive, and marine setups.
Engineered to safeguard your system from over-current events caused by high power draw, short-circuits, wiring errors, or equipment faults, this circuit breaker offers a significant advantage over traditional fuses by being resettable, eliminating the need for constant replacements. Its manual-break option also allows for convenient disconnection and reconnection of your system, enhancing safety and ease of maintenance.
Buyer Note: This circuit breaker is designed for surface mounting. Always verify the current rating and voltage compatibility with your specific DC system before installation to ensure optimal protection and performance.
Key Features
- ▶ 100A Over-Current Protection: Automatically trips to protect against excessive current.
- ▶ Resettable Design: Eliminates the need for fuse replacement after an overload event.
- ▶ Manual On/Off Switch: Provides convenient circuit isolation for maintenance or storage.
- ▶ Wide Voltage Compatibility: Suitable for 12V, 24V, and 48V DC systems.
- ▶ Durable Construction: Made from thermal plastic (UL94V-0 rated) for high-temperature resistance.
- ▶ Water & Dust Resistant: IP67 rated enclosure for protection in harsh environments.
- ▶ Ignition Protected: Compliant with S.A.E. J1625, J1171, and UL1500 standards for marine safety.
- ▶ Surface Mount Design: Easy installation on flat surfaces.
Technical Specifications
| Rating | 100A |
| Voltage Compatibility | 12V / 24V / 48V DC Automatic |
| Type | Thermal Overcurrent Protection Device |
| Material | Thermal Plastic (UL94V-0 Rated) |
| Operating Temperature | -32°C to 82°C |
| Storage Temperature | -34°C to 149°C |
| Terminals Size | M6 |
| Enclosure / Waterproof Rating | IP67 |
| Dimensions (L x W x H) | 74 x 48 x 37 mm |
| Weight | 110g |
| International Standards | S.A.E. J1625, J1171, UL1500 |
Typical Applications
This 100A DC circuit breaker is highly versatile and suitable for a variety of low-voltage direct current applications requiring reliable over-current protection and manual circuit control.
| Application | Description |
|---|---|
| Solar & Wind Systems | Connecting solar or wind charge controllers to battery banks, or between off-grid inverter DC inputs and batteries. |
| DC Power Distribution | Protecting DC power distribution boards or charging circuits in various setups. |
| Automotive & RV | Ideal for auxiliary and accessory circuits in cars, trucks, buses, and recreational vehicles (RVs). |
| Marine Applications | Suitable for boats, yachts, and other marine electrical systems, offering ignition protection. |
Built-In Protection & Safety Features
The Photonic Universe 100A DC Circuit Breaker is engineered with multiple features to ensure the safety and longevity of your electrical systems:
- ✓ Over-Current Protection: Automatically disconnects the circuit when current exceeds 100A to prevent damage.
- ✓ Short-Circuit Protection: Rapid response to short-circuit conditions, isolating the fault.
- ✓ Thermal Plastic Housing (UL94V-0): Provides high resistance to heat and flame, enhancing safety.
- ✓ IP67 Water & Dust Resistance: Ensures reliable operation in challenging outdoor or marine environments.
- ✓ Ignition Protected: Certified to S.A.E. J1625, J1171, and UL1500 standards for safe use in areas with potential flammable vapours, such as engine compartments.
Common Questions
What is the main advantage of a resettable circuit breaker over a traditional fuse?
A resettable circuit breaker, like this 100A unit, automatically trips during an over-current event and can be manually reset once the fault is cleared. This eliminates the need to carry and replace blown fuses, offering greater convenience and cost-effectiveness, especially in remote or critical applications.
Can this circuit breaker be used as a main On/Off switch for my DC system?
Yes, this circuit breaker includes a manual-break option, allowing it to function as an isolator On/Off switch. This feature is useful for safely disconnecting your system for maintenance, storage, or in emergency situations.
What does 'Ignition Protected' mean for marine use?
'Ignition Protected' means the device is designed and tested to prevent the ignition of flammable vapours that may be present in marine engine compartments or fuel tank spaces. Compliance with standards like S.A.E. J1171 and UL1500 ensures it won't produce sparks or heat that could ignite such vapours, making it safe for these environments.
Is this circuit breaker suitable for outdoor installation?
With an IP67 rating, this circuit breaker is dust-tight and protected against the effects of temporary immersion in water (up to 1 meter for 30 minutes). This makes it highly suitable for outdoor installations where exposure to dust, rain, or splashes is expected.
Installation Notes
- ✓ This circuit breaker is designed for surface mounting. Ensure a flat, stable surface for secure installation.
- ✓ Always disconnect all power sources before attempting installation or maintenance.
- ✓ Use appropriate M6 terminals and ensure all connections are tight and secure to prevent resistance and heat build-up.
- ✓ For complex systems or if unsure, professional installation by a qualified electrician is recommended.
Before You Buy
- ✓ System Voltage: Confirm your DC system voltage (12V, 24V, or 48V) is compatible with this breaker.
- ✓ Current Rating: Ensure the 100A rating matches or exceeds the maximum continuous current draw of the circuit it will protect, but is appropriately sized for fault protection.
- ✓ Environmental Conditions: The IP67 rating provides robust protection, but consider extreme conditions like continuous submersion or chemical exposure if applicable.
- ✓ Mounting Location: Plan for a suitable surface mounting location that allows for easy access to the reset button.
Please verify all specifications and compatibility requirements for your specific application before purchase. Product specifications are subject to change by the manufacturer without prior notice.
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