{"product_id":"bussmann-cb185-100-automotive-circuit-breaker-100a-resettable-thermal-trip-compact-rugged-design","title":"Bussmann CB185-100 Automotive Circuit Breaker 100A — Resettable Thermal Trip, Compact Rugged Design","description":"\u003cp\u003e\u003cstrong\u003eThe Eaton Bussmann CB185-100 is a 100-amp, CB185-series automotive circuit breaker built to protect vehicle and marine DC circuits from overloads and short conditions.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and rugged, this CB185-100 breaker provides dependable overcurrent protection for automotive, marine, and off-road electrical systems where resettable protection is preferred over fuses. Manufactured by Bussmann in Mexico and designed for repeated trip-and-reset cycles, the CB185 family combines predictable thermal trip behavior with a space-saving footprint suitable for dashboards, engine bays, and equipment panels.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the CB185-100 protect my vehicle's electrical system?\u003c\/h3\u003e\n\u003cp\u003eThe breaker limits current when a circuit draws more than its rated 100 A, opening the circuit to prevent wiring overheating and component damage. After the fault is cleared, it can be manually or automatically reset depending on installation, restoring power without replacing parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal\/magnetic-style trip profile for predictable response under overloads\u003c\/li\u003e\n  \u003cli\u003eResettable design reduces downtime and spare parts needs\u003c\/li\u003e\n  \u003cli\u003eRated for continuous 100 A service with defined trip thresholds\u003c\/li\u003e\n  \u003cli\u003eSuitable for DC electrical systems commonly found in vehicles and boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere and how should I install the CB185-100?\u003c\/h3\u003e\n\u003cp\u003eInstall the CB185-100 in a dry, accessible location near the distribution point or load it protects, using appropriate mounting hardware and wire terminals. Follow vehicle wiring best practices and torque specs; ensure the breaker’s voltage and current ratings match the circuit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount on a secure panel or bracket with recommended fasteners\u003c\/li\u003e\n  \u003cli\u003eUse wiring sized for 100 A continuous current and appropriate insulation\u003c\/li\u003e\n  \u003cli\u003eKeep the breaker clear of excessive heat sources and moisture\u003c\/li\u003e\n  \u003cli\u003eVerify polarity and terminal tightness to prevent heat buildup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and testing does this CB185 breaker require?\u003c\/h3\u003e\n\u003cp\u003eRoutine visual inspections and occasional functional checks ensure reliable operation. Look for corrosion, loose connections, or physical damage, and exercise the manual reset to confirm mechanical operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect terminals and housing for corrosion or wear\u003c\/li\u003e\n  \u003cli\u003eConfirm terminal torque and wiring condition annually or after service\u003c\/li\u003e\n  \u003cli\u003eTest trip\/reset action under controlled conditions if troubleshooting\u003c\/li\u003e\n  \u003cli\u003eReplace the breaker if mechanical damage, persistent arcing, or heat damage is found\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The CB185-100 is ideal for electricians, marine technicians, fleet managers, and DIY vehicle enthusiasts who need a durable, resettable 100 A protection device. It fits situations where repeated resets are likely, spares should be minimized, and dependable thermal trip behavior is required. Because it’s made by Bussmann in Mexico, this breaker is suited to professional maintenance, retrofits, OEM installations, and upgrades across automotive, marine, and specialty equipment applications.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the CB185-100 resettable after a trip?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the CB185-100 is a resettable circuit breaker that can be manually or automatically reset once the fault is cleared.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What environments is the CB185-100 suitable for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for automotive and marine DC systems, it works in vehicles, boats, and off-road equipment when installed in a protected location.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Bussmann","offers":[{"title":"Default Title","offer_id":55165870768471,"sku":"B00139FQSS","price":37.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/bussmann-cb185-100-front-view.jpg?v=1790359030","url":"https:\/\/britishgarage.co.uk\/products\/bussmann-cb185-100-automotive-circuit-breaker-100a-resettable-thermal-trip-compact-rugged-design","provider":"British Garage","version":"1.0","type":"link"}