Blue Sea Systems 7138 187-Series Circuit Breaker, Surface Mount, 40A



Key features
- •Combines switching and circuit protection into a single device with clear, single-lever operation
- •"Trip Free" design prevents holding the switch "ON" during fault conditions for enhanced safety
- •Fully waterproof construction with recessed mounting holes for a clean, streamlined appearance
- •Ample space around terminal studs accommodates heavy-gauge wire lugs; robust 5/16 M8 terminals provide secure, high-torque connections
- •Ignition-protected for safe installation aboard gasoline-powered boats, meeting SAE J1171 external ignition protection standards
BrandBlue Sea Systems
CategoryThermal Circuit Breakers
Size40A DC
Color187 Series, Surface Mount
WarrantyLIMITED WARRANTY
Blue Sea Systems 7138 187-Series Circuit Breaker, Surface Mount, 40A
List Price: $126.56$113.90DEALYou Save: $12.66 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 22, 2026In Stock (35)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







