Blue Sea 3120 - SMS Panel Enclosure w/ELCI Main (50A) and 2 Blanks - 240V

Ensure the safety and efficiency of your boat’s electrical system with the 3120 SMS Panel Enclosure. Specifically designed for marine environments, this durable enclosure houses Equipment Leakage Circuit Interrupters (ELCI) and main circuit breakers, providing reliable protection against electrical faults while maintaining easy access and visibility for monitoring.

Features

• Customizable blank apertures allow for tailored breaker configurations to suit your specific marine electrical needs
• Constructed with a robust glass-filled polycarbonate base for enhanced durability in harsh marine conditions
• Clear cover design ensures effortless monitoring of circuit breaker status at a glance
• Overlapping cover construction provides additional strength and improved gasket protection against moisture and saltwater ingress
• Seamless, oversized PUR gasket formed in place for superior waterproof sealing
• Easy installation with a removable stainless steel hinge pin, allowing unobstructed access during setup
• Secure stainless steel latch keeps the cover firmly in place without the need for enclosure penetration
• Compatible with Carling Technologies™ A and C Series Flat Rocker and ELCI Main circuit breakers through blank circuit positions
• Comes with waterproof glands to maintain the integrity of your marine electrical system
• Integrated LEDs provide backlighting and an ON indication for easy status checks in low-light conditions

Technical Specifications

Parameter	Details
Circuit Breaker Configuration	1 x ELCI (50A) Main 240V and 2 x Blank
Overall Dimensions (H x W x D)	7.6" x 7.4" x 4.7" (192 x 188 x 120mm)
Enclosure Dimensions (H x W x D)	6" x 6" x 4" (152 x 152 x 102mm)
Installed LEDs	2 x Green ON (240V AC)

What's in the Box

• 3120 SMS Panel Enclosure
• 5 Waterproof Glands
• Identification Labels for easy wiring reference
• Complete Mounting Hardware for secure installation
• Comprehensive Instruction Manual to guide setup and usage

*Sold individually

Safety Information

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Additional Resources

• Quick Guide (PDF)
• Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.