40A 12V/24V/48V AUTOMATIC OVER-CURRENT DC CIRCUIT BREAKER / SWITCH FOR PANEL OR RECESS MOUNT
40A 12V/24V/48V AUTOMATIC OVER-CURRENT DC CIRCUIT BREAKER / SWITCH FOR PANEL OR RECESS MOUNT
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40A Automatic DC Circuit Breaker / Switch
Resettable Overcurrent Protection | 12V/24V/48V Systems | Panel or Recess Mount
The Photonic Universe 40A Automatic DC Circuit Breaker / Switch offers essential overcurrent protection and manual isolation for a wide range of DC electrical systems. Designed for 12V, 24V, and 48V applications, this compact unit combines the functionality of a robust 40A resettable fuse with a convenient on/off switch. It safeguards valuable components against high power draw, short circuits, wiring errors, and equipment malfunctions, making it an indispensable safety device for solar, automotive, and marine setups.
Unlike traditional fuses that require replacement after an event, this innovative circuit breaker is fully resettable, providing superior convenience and peace of mind. Its manual isolation capability allows for effortless disconnection and reconnection of your system for maintenance or storage.
VERSATILE PROTECTION: Functions as both a 40A resettable fuse and a manual on/off switch for DC systems from 12V to 48V.
Key Features
| ▶ Dual Functionality — Acts as a resettable 40A fuse and an on/off switch. |
| ▶ Wide Voltage Compatibility — Safely operates with 12V, 24V, and 48V DC systems. |
| ▶ Superior Overcurrent Protection — Guards against excessive current from high power draw or faults. |
| ▶ Resettable Convenience — Eliminates the need for fuse replacements after an overload. |
| ▶ Manual Isolation — Easily disconnect power for maintenance or system shutdowns. |
| ▶ Robust & Reliable Build — Constructed from UL94V-0 rated thermal plastic for high temperature resistance. |
| ▶ All-Weather Ready — Features an IP67 waterproof and dustproof rating. |
| ▶ Ignition Protected — Complies with S.A.E. J1625, J1171, UL1500 standards for enhanced safety. |
| ▶ Flexible Installation — Designed for convenient panel or recess mounting. |
Technical Specifications
| Parameter | Value |
|---|---|
| Rating | 40 Amps |
| Type | Thermal Overcurrent Protection Device |
| Material | High-Strength Thermal Plastic (UL rated 94V-0) |
| Operating Temperature | -32°C to 82°C |
| Storage Temperature | -34°C to 149°C |
| Terminals Size | M6 |
| Enclosure Rating | IP67 (Waterproof and Dustproof) |
| Dimensions | 74 x 48 x 37 mm |
| Weight | 110g |
| Standard Compliance | S.A.E. J1625, J1171, UL1500 |
Typical Applications
| Application | Description |
|---|---|
| Solar & Wind Systems | Efficiently connect solar or wind charge controllers to battery banks, providing a critical safety and disconnect point. |
| Off-Grid Inverter Protection | Serve as a vital safety and disconnect point between off-grid inverter DC inputs and batteries. |
| DC Power Distribution | Reliable protection for general DC power distribution or charging circuits in various setups. |
| Automotive & Marine | Essential for safeguarding critical equipment like pumps, lights, and navigation systems in vehicles and boats. |
Built-In Protection Functions
This Photonic Universe DC circuit breaker is engineered with multiple layers of protection to ensure system safety and longevity. It provides automatic overcurrent protection against high power draw, short circuits, wiring errors, and equipment faults. The unit is also ignition protected, meeting stringent international standards S.A.E. J1625, J1171, and UL1500, making it safe for use in marine and automotive environments where ignition sources are a concern. Furthermore, its IP67 rating ensures excellent protection against water and dust ingress, enhancing durability in demanding outdoor and wet conditions.
Common Questions
What DC voltages is this circuit breaker compatible with?
This 40A DC circuit breaker is designed to operate safely and effectively with 12V, 24V, and 48V DC electrical systems.
How do I reset the circuit breaker after an overload?
Unlike traditional fuses, this unit is resettable. After an overcurrent event, simply address the cause of the overload, then manually reset the breaker to restore power to the circuit.
Can this circuit breaker be used as a manual on/off switch?
Yes, in addition to automatic overcurrent protection, this device features a manual on/off switch function, allowing you to easily isolate or connect your DC system as needed for maintenance or storage.
Installation Notes
- Ensure all power is disconnected before beginning installation.
- Mount the breaker in a suitable panel or recess, ensuring adequate ventilation.
- Use appropriate M6 terminals and ensure secure, tight connections to prevent resistance and overheating.
- Observe correct polarity when connecting to your DC system.
- Consult a qualified electrician if you are unsure about any aspect of the installation.
Before You Buy
- Verify the 40A rating is appropriate for your specific circuit's maximum current draw.
- Confirm your system voltage (12V, 24V, or 48V DC) is compatible.
- Measure available space for panel or recess mounting to ensure proper fit.
- Consider the environmental conditions; the IP67 rating provides robust protection.
- Review your system's overall electrical design to ensure this breaker integrates correctly.
Always verify product specifications and compatibility with your specific system requirements before purchase and installation. All technical data is based on manufacturer-supplied information.
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