OEX ACX1862BL Automatic Reset Circuit Breaker

OEX ACX1862BL 25A Automatic Reset Circuit Breaker IP64 12V Plated Steel 10-32 Stud Terminals

The OEX ACX1862BL is a 25A automatic reset circuit breaker for 12V heavy duty applications. Unlike a manual reset breaker or fuse, this breaker automatically cycles and resets until the overload condition is corrected, providing self-recovering protection for circuits where momentary overloads are expected or where unattended operation is required. IP64 rated. Plated steel case with integrated mounting bracket and two 10-32 stud terminals at 40mm centre-to-centre spacing. Important: the longer bolt is the power (input) terminal and the shorter bolt is the load (output) terminal confirm correct wiring orientation before installation. Covered by a one year warranty.

Product overview

An automatic reset circuit breaker trips when current exceeds the rated threshold and then resets automatically once the overload is removed, cycling on and off until the fault clears. This behaviour is suited to circuits with expected momentary overloads electric cooling fans, electric actuators, trailer accessory feeds and marine auxiliary circuits where brief current spikes are normal and self-recovery without operator intervention is desirable. For main battery supply protection and motor circuits where sustained fault re-energisation could cause damage, a manual reset breaker (such as the ACX1842 through ACX1848 series) is the more appropriate choice.

The plated steel case and integrated mounting bracket provide durable, corrosion-resistant construction for engine bay and auxiliary box mounting. The 10-32 stud terminals accept standard #10 ring terminals. Two mounting holes at 40mm centre-to-centre spacing suit fixed panel and bracket installation. At 75x50x30mm the ACX1862BL is compact enough for fuse panel, engine bay and auxiliary enclosure mounting.

Features and benefits

25A automatic reset: Self-recovers after tripping and continuously resets until the overload is cleared no user intervention required.

12V heavy duty rated: Built for automotive and auxiliary power applications at 12V.

IP64 rated: Fully protected against dust ingress and water splashing from any direction, suited to engine bay and exposed mounting positions.

Plated steel case and mounting bracket: Durable and corrosion-resistant construction for long-term reliability in automotive environments.

2x 10-32 stud terminals: Standard threaded stud connections accepting #10 ring terminals for reliable wiring. The longer bolt is the power (input) terminal and the shorter bolt is the load (output) terminal.

40mm centre-to-centre mounting holes: Fixed mounting positions for panel and bracket installation.

Compact 75x50x30mm: Suitable for fuse panel, engine bay and auxiliary box mounting.

One year warranty: Covered by a one year OEX warranty.

Technical specs

Frequently asked questions

What is an automatic reset circuit breaker? An automatic reset circuit breaker trips when current exceeds its rating and then automatically resets once the overload condition is removed, cycling on and off until the fault is cleared. It differs from a manual reset breaker (which requires the user to physically reset it) and a fuse (which must be replaced after blowing). Automatic reset breakers suit circuits with momentary overloads or where unattended self-recovery is needed.

How does this differ from the manual reset circuit breakers in the OEX range? The ACX1862BL automatically resets after tripping without user intervention, cycling until the fault is cleared. The OEX manual reset breakers (ACX1842 through ACX1848) stay tripped until the user physically resets them. Manual reset is generally preferred for main battery protection to prevent damage from sustained fault conditions; automatic reset suits accessories, fans and auxiliary circuits where brief overloads are expected and self-recovery is desirable.

Which terminal is the power input and which is the load output? The longer bolt is the power (input) terminal connect from the power source. The shorter bolt is the load (output) terminal connect to the protected circuit. Incorrect wiring will affect breaker operation, so confirm orientation before installation.

What does IP64 mean? IP64 indicates the breaker is fully protected against dust ingress (6) and protected against water splashing from any direction (4). It is suitable for engine bay and exposed mounting positions but is not rated for submersion.

What cable terminals suit the 10-32 studs? The 10-32 thread accepts standard #10 ring terminals. Select ring terminals sized for your cable gauge with a #10 (3.5mm) hole.