S200 Series Thermal Magnetic Circuit Breaker S201D40, Automatic Overload Protection, Quick Manual Reset

HeavyDuty Circuit Breakers for Reliable Electrical Protection Key benefits Protects circuits by automatically interrupting overloads and short circuits, helping prevent equipment damage and downtime. Resettable design reduces replacement needs compared to singleuse fuses; restore power quickly after resolving the fault. Consistent trip performance supports stable operation across home, workshop, marine, and automotive applications. Function Overcurrent protection with thermal or thermalmagnetic trip action (based on model). Manual reset lever or pushbutton (model dependent) for quick restoration after a trip. Designed to interrupt power when current exceeds the rated threshold. Compatibility Suitable for DC and AC lowvoltage circuits within the specified current and voltage ratings. Works with auxiliary devices such as power inverters, trolling motors, winches, RV electrical panels, solar charge controllers, and accessory circuits when matched to rating. Panel mount or surface mount options available; confirm mounting style and spacing with your enclosure or panel. Size and installation Compact form factor for spacelimited panels; dimensions vary by model. Verify length, width, height, and mountinghole spacing before installation. Standard screw or stud terminals for secure connections. Use appropriately sized conductors and torque per specification. Install in a dry, accessible location for easy inspection and reset. Observe correct line/load orientation if marked. Material and build Housing engineered for durability and heat resistance. Corrosionresistant terminals or studs (model dependent) support stable conductivity. Robust internal mechanism designed for consistent trip curves over repeated cycles. Performance Offered in multiple current ratings to match circuit demands; select according to your load and wire gauge. Fast, repeatable trip response helps protect wiring and connected devices. Low contact resistance supports efficient current flow under normal operation. Use scenarios Automotive and marine: Protect a 12 V or 24 V accessory circuit such as a winch or trolling motor. If an overload occurs, the breaker trips and can be manually reset after checking the circuit. RV and offgrid power: Install between a battery bank and inverter or solar charge controller to safeguard wiring during load events or faults. Workshop tools: Use in an auxiliary AC or DC circuit for small compressors or bench equipment, providing convenient reset after resolving a stall or short. Selection guidance Choose the current rating equal to or slightly above the continuous operating current of the load while staying within conductor ampacity. Match the voltage rating to the system voltage or higher. Confirm terminal type, mounting style, and available space in your application. What is included Circuit breaker unit in the selected rating and mounting style. Reset mechanism integrated into the housing. Notes Deenergize circuits before installation or service. Use appropriate wire gauge, lugs, and hardware as specified for the breaker terminals. Periodically inspect connections for tightness and signs of overheating.