Blue Sea 3121 SMS Panel Enclosure with ELCI and Blanks

The Blue Sea 3121 SMS Panel Enclosure with ELCI (16A) is a surface-mount enclosure that pairs a lighter-duty 230V main breaker with 3 blank positions for future circuits. It is designed for smaller 230V shore power systems that still need ABYC E-11 compliant protection with room to expand.

The enclosure meets ABYC E-11 when fitted with an ELCI main breaker and mounted within 10 feet of the shore power inlet, and its glass-filled polycarbonate base with clear, overlapping cover lets you check breaker status without opening the box. Blank apertures accommodate Carling Technologies A- and C-Series breakers as your circuit needs grow. Browse more options in our panels, switches, and circuit breakers category.

Key Features: 1 x ELCI (16A) main breaker at 230V plus 3 blank positions for future breakers, clear cover for at-a-glance status, oversized seamless PUR gasket, removable stainless steel hinge pin, LED backlighting and ON indication, includes waterproof glands, sold individually.

Frequently Asked Questions

What's the amperage rating on this enclosure's main breaker? It's rated 16A at 230V, a lighter-duty option than Blue Sea's other SMS enclosures.

Can I add more circuits later? Yes, the 3 blank positions accept Carling Technologies A- and C-Series breakers as your needs grow.

Does this meet ABYC E-11? Yes, when used with an ELCI Main circuit breaker and mounted within 10 feet of the shore power inlet.