CB130 Auto Reset Circuit Breaker 30 Amp 12/24V

Description

CB130. Auto Reset. 30 Amp. 12/24V DC. Type 1 Thermal Circuit Breaker. Parallel Mount Bracket. Sold Individually.

The CB130 is a 30 Amp Type 1 automatic reset circuit breaker rated for 12V and 24V DC — used for overcurrent protection in Australian automotive, marine, caravan, camper, and 12V DC wiring installations. Type 1 auto reset: when an overcurrent condition occurs the breaker trips, and automatically resets and retries once the element cools — continuing to cycle until the fault is corrected. Stud terminal connections with parallel mount bracket. Sold individually.

• CB130 — 30 Amp Auto Reset Circuit Breaker 12/24V DC
• Current rating: 30 Amp
• Voltage rating: 12V and 24V DC
• Type 1 auto reset — automatically resets after thermal element cools, cycles until fault is corrected
• Thermal trip mechanism — trips on overcurrent or short circuit
• Stud terminal connections — AUX and BAT copper threaded studs with nuts, suits ring terminals and cable lugs
• Parallel mount bracket — flat mounting ears either side of breaker body, two mounting holes
• Suits: automotive, marine, caravan, camper, RV, boat, 12V DC wiring
• Sold individually

Available now — fast dispatch Australia-wide.

CB1 Auto Reset Circuit Breaker Range

• CB110 — 10A — 12/24V DC
• CB115 — 15A — 12/24V DC
• CB120 — 20A — 12/24V DC
• CB125 — 25A — 12/24V DC
• CB130 — 30A (this product) — 12/24V DC
• CB140 — 40A — 12/24V DC
• CB150 — 50A — 12/24V DC

About the CB130 — Auto Reset vs Manual Reset Circuit Breakers

A circuit breaker provides resettable overcurrent protection — unlike a fuse which must be replaced after it blows, a circuit breaker can be reset and returned to service after the overcurrent condition is cleared. The CB130 is a Type 1 automatic reset breaker — after tripping on an overcurrent condition, the thermal element cools and the breaker automatically resets and retries the circuit. If the fault persists, the breaker trips again and the cycle continues until the fault is corrected or the power source is disconnected.

The stud terminal connections accept ring terminals and cable lugs — the AUX stud connects to the load side of the circuit and the BAT stud connects to the battery or supply side. The parallel mount bracket allows the breaker to be bolted flat to a panel, bracket, or chassis using two mounting holes — one either side of the breaker body.

Type 1 auto reset is commonly used in automotive, marine, and caravan applications where the circuit must restore automatically once the fault clears — for example, a motor that stalls and draws overcurrent, where the breaker needs to retry once the motor cools or the mechanical obstruction is removed. For circuits where automatic retry is undesirable — such as lighting or control circuits where an uncontrolled restart could cause a hazard — a Type 2 (modified reset) or Type 3 (manual reset) breaker should be specified instead.

Q: What is the difference between Type 1, Type 2, and Type 3 circuit breakers?
A: Type 1 (auto reset) automatically resets and retries after tripping — the CB130 is Type 1. Type 2 (modified reset) trips and stays open until the power is cycled off and on. Type 3 (manual reset) trips and stays open until the reset button is manually pressed. Select the type appropriate for the circuit application.

Q: What terminals does the CB130 use?
A: The CB130 uses copper threaded stud terminals — one marked AUX (load side) and one marked BAT (supply/battery side). Connection is made with ring terminals or cable lugs bolted to the studs with the supplied nuts.

Q: Can the CB130 be used in both 12V and 24V systems?
A: Yes — the CB130 is rated for both 12V and 24V DC, making it suitable for 12V automotive and caravan systems as well as 24V truck, bus, and commercial vehicle systems.

Q: Is the CB130 sold individually?
A: Yes — the CB130 is sold individually.