Blue Sea 3121 - SMS Panel Enclosure w/ELCI (16A) 3 Blanks - 230V AC

The 3121 SMS Panel Enclosure is specifically designed for marine and boating applications, providing a robust and reliable housing solution for Equipment Leakage Circuit Interrupters (ELCI) main circuit breakers and other substantial electrical devices. Engineered to meet the stringent ABYC E-11 standards when paired with an ELCI Main circuit breaker and installed within 10 feet of an AC shore power inlet, this enclosure ensures both safety and functionality for your vessel’s electrical system.

Features

• Customizable breaker loading with blank apertures
• Durable glass-filled polycarbonate base for enhanced strength
• Clear cover for easy visibility of circuit breaker status
• Overlapping cover design for increased gasket protection and durability
• Seamless PUR gasket, oversized and formed in place for superior sealing
• Removable stainless steel hinge pin for unobstructed and easy installation
• Stainless steel latch that secures the cover without penetrating the enclosure
• Blank circuit positions compatible with Carling Technologies™ A and C Series Flat Rocker and ELCI Main circuit breakers
• Includes waterproof glands to ensure a watertight seal
• Integrated LED lights for backlighting and operational status indication

Technical Specifications

• Circuit Breaker Configuration: 1 x ELCI (16A) Main 230V, 3 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)
• LED Indicators: 1 x Red (Reverse Polarity - 230V AC), 3 x Green ON (230V AC)

What's in the Box

• 3121 SMS Panel Enclosure
• 5 Waterproof Glands
• Identification Labels
• Mounting Hardware for secure installation
• Comprehensive Instruction Manual

Specifications

Parameter	Details
Power Type	AC
Voltage	230V AC
Box Dimensions	7"H x 9"W x 10"L
Weight	3.9 lbs
UPC	632085031213

Note: *Sold as an individual unit.

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.