Manual-Reset DC Protection for Vehicle Power Wiring
Automotive, Marine & RV Circuit Breakers
DAIER supplies manual-reset DC circuit breakers for automotive accessory wiring, car audio, marine and RV power circuits. Inline, surface-mount and panel-mount options differ in current rating, cable connection and reset function. Compact thermal and hydraulic-magnetic breakers are also available for equipment panels.
- Primary Applications Automotive, Marine & RV
- Reset Options Manual-Reset DC Versions
- Connections Cable Clamps & Stud Terminals
- Mounting Formats Inline, Surface & Panel
Circuit Breakers & Related Components
CB-03-M8 Surface-Mount Manual Reset Circuit Breaker
This manual reset circuit breaker has a red manual reset button and is compatible with all 30A-250A, 12-48V circuit breaker switches.
CB-04 0/2/4/8 AWG Resettable Circuit Breaker
The resettable circuit breaker accepts 0/2/4/8 AWG specification power cords with adapters for direct connection with all 12-24 volt systems.
CB-05 12-48V Circuit Breaker with Manual Reset
The circuit breaker with manual reset,12-48V DC, 0-8 gauge trolling motor auto car stereo audio inline fuse block holders inverter.
CB-06 Waterproof Hi-Amp Panel Mount Circuit Breaker
The waterproof Hi-Amp panel mount circuit breaker is typically used for auxiliary and accessory circuits on trucks, buses, recreational vehicles, marine, and construction equipment.
CB-61 30A-300A 12V-48V DC 187 Type Marine Rated Circuit Breaker with Manual Reset – Surface Mount
This 12-48V DC circuit breaker offers a wide amperage range from 30A to 300A and features manual reset functionality, ensuring reliable overcurrent protection for a variety of applications.
WPC-20 WPC-21 Waterproof Rubber Boot Cover for Push-Button Reset Circuit Breakers
This waterproof rubber boot cover shields push-button breakers from moisture, dust, and corrosion, ensuring reliable operation and preventing electrical hazards.
ST-1
ST-1 amp circuit breaker design allows the thermal circuit breaker to be extremely cost-effective while remaining durable and reliable.
ST-1B 125/250VAC 32VDC Push Button Circuit Breaker
The push button circuit breaker, Working Voltage:125/250V AC, 32V DC; Rating Current; 5A-20A; Terminal Type: angled pins.
ST-001 15A 125/250VAC Snap-In Rocker Style Circuit Breaker with LED Light
ST-001 circuit breaker offers a compact thermal circuit breaker in a rocker switch design.
ST-2A 20 Amp Circuit Breaker
ST-2A circuit breaker are single-pole, push-to-reset breakers with a compact design that protects your equipment and applications.
ST-2P
ST-2P 40 amp circuit breaker utilize a simple and precise design that features few moving parts.
ST-001S-101
ST-001S-101 15 amp circuit breaker into your system you can provide overload protection by incorporating
ST-002
ST-002 car circuit breaker On/Off switching using just a single component
ST-3-AC20A-UL 80V DC / 240V AC 20A Single Pole Circuit Breaker Hydraulic Magnetic with Toggle – Panel Mount
This 80V DC / 240V AC 20A single pole circuit breaker hydraulic magnetic offers robust overload and short-circuit protection with CE & UL certification.
ST-3-AC30A-UL 80V DC / 240V AC 30A Single Pole Hydraulic Magnetic Circuit Breaker with Toggle – Panel Mount
This 80V DC / 240V AC 30A single pole hydraulic magnetic circuit breaker offers robust overload and short-circuit protection with CE & UL certification.
ST-3-AC220V30A-UL 80V DC / 240V AC 30A Double Pole Hydraulic Magnetic Circuit Breaker with Toggle – Panel Mount
This 80V DC / 240V AC 30A double pole hydraulic magnetic circuit breaker offers robust overload and short-circuit protection with CE & UL certification.
PWH Series 2 to 24 Position IP67 Transparent Protective Window Circuit Breaker Box Cover
These IP67 transparent covers designed to fit a wide range of circuit breaker boxes, including 2, 4, 6, 8, 10, 12, 13, 16, 18, and 24-position configurations, with an 86 type option.
ST-3-AC50A-UL 80V DC / 240V AC 50A Double Pole Hydraulic Magnetic Circuit Breaker with Toggle – Panel Mount
This 80V DC / 240V AC 50A double pole hydraulic magnetic circuit breaker offers robust overload and short-circuit protection with CE & UL certification.
RY-01
RY-01 temperature fuse devices cut off power as a result of temperature rise.
TLRS-9700
TLRS-9700 thermal fuse cutoff is also a type of thermal cutoff device
Selection Guide
Choosing a Circuit Breaker
Reset & Operation
- Manual-reset DC breakers restore the circuit after the fault is cleared.
- Switchable versions also provide a manual disconnect; operating functions vary by model.
- Equipment push-to-reset types are not necessarily ON-OFF switches.
Voltage & Current
- Match the breaker to the DC system voltage and required current rating.
- Available ratings and interrupting capacity differ between versions.
- For equipment breakers, use the separate AC or DC rating and required trip characteristic.
Mounting & Connection
- Cable-clamp versions require the correct wire size and connector fit.
- Stud-terminal versions require matching cable lugs and confirmed thread dimensions.
- Match the mounting format, installation clearance and documented exposure conditions.
Equipment options: Compact thermal push-button and rocker breakers, plus hydraulic-magnetic toggle types, serve different panel requirements. These equipment versions require their own circuit ratings and panel-fit specifications.
Applications
Typical Circuit Breaker Applications
Choose the protection function for the load and installation.
Automotive Accessories & Car Audio
DC breakers for amplifier supplies, auxiliary wiring and vehicle accessory power. Match current, voltage and cable connections to the circuit.
Marine & RV Power Wiring
Manual-reset options for onboard accessory and auxiliary power circuits. Specify the exact electrical ratings and installation exposure requirements.
Equipment & Control Panels
Thermal push-button and rocker types, plus hydraulic-magnetic toggle breakers, support separate equipment-panel requirements.
Common Questions
Circuit Breaker Selection FAQs
Answers about reset functions, ratings and related accessories.
For a Project Enquiry
Use the checklist below to prepare your breaker requirements.
Send Project DetailsNo. The listed automotive DC range includes manual-reset breakers, with switchable versions that also allow manual disconnection. Reset and operating controls differ by model. Clear the cause of the trip before resetting; do not assume an equipment push-to-reset button is an ON-OFF switch.
No. DC voltage limits, current options and interrupting capacity depend on the exact version. Match these specifications to the circuit and request the confirmed datasheet. An AC rating cannot be used as evidence of the same DC capability.
No. The generator interlock kits listed here are separate mechanical accessories that prevent simultaneous breaker operation. They do not provide overcurrent protection. For these kits, use the product-specific panel compatibility and installation drawing.
No. Protection depends on the exact breaker, covers, terminals and complete installation. Use documented exposure and sealing requirements for the chosen version. A waterproof cover description or a rating on one product does not apply to the whole range.
Compact thermal push-button breakers provide overload protection, while rocker versions combine protection and switching. Hydraulic-magnetic toggle versions include different pole arrangements. Select these by the equipment circuit ratings, trip requirements and panel fit. Thermal cutoffs and thermostats are separate temperature-protection parts.
Request a Circuit Breaker Quote
Send these details with your enquiry:
- Product: Part number or DC breaker type, reset function and quantity.
- Electrical: Supply voltage, AC/DC, current and load; trip requirements where needed.
- Installation: Cable size, terminal requirements, mounting drawing and exposure conditions.
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