Automatic circuit breaker ESS-63, MSL8 1, 2, 3P 1-63A (50A)

ESS-63 MSL8 50A circuit breaker

⚡ The ESS-63 MSL8 50A is used for switching and protecting electrical circuits. The model has a rated current of 50 A and, according to the Schetchik.uz product listing, is intended for a 380 V three-phase network.

During normal operation, the breaker supplies current to connected equipment. If the load remains above the permissible level or a short circuit occurs, the breaker automatically disconnects the line. This helps protect the cable against overheating, insulation damage and fire risk.

🛡️ Main functions

• Overload protection — disconnection when current remains above the permitted level;
• short-circuit protection — rapid disconnection during a sharp fault-current increase;
• manual switching — allows the circuit to be isolated for servicing;
• fault isolation — helps limit the consequences of an electrical fault.

🔌 Confirmed specifications

• Brand: ESS;
• series: ESS-63 / MSL8;
• rated current: 50 A;
• series current range: 1–63 A;
• supply voltage: 380 V;
• network type: three-phase;
• series versions: 1P, 2P and 3P;
• warranty: 36 months;
• condition: new.

✅ Key advantages

• 50 A rated current for correctly designed circuits;
• automatic protection against dangerous overcurrent;
• short-circuit protection;
• manual line isolation;
• suitable for installation in a distribution board;
• applicable to residential and commercial facilities;
• 36-month warranty;
• mounting parts included.

🏠 Applications

• incoming and branch circuits in private houses;
• shops, offices and administrative premises;
• workshops and light industrial facilities;
• electrical distribution boards;
• lighting and socket circuits where the calculated load is suitable;
• pumps, ventilation and other equipment following an electrical calculation.

⚠️ What to verify before purchase

The series designation includes 1P, 2P and 3P versions. Since the specific product page identifies this item as three-phase, the exact number of poles should be verified from the marking on the breaker body.

Also verify:

• the tripping characteristic, such as B, C or D;
• breaking capacity in kA;
• exact number of poles;
• permitted conductor cross-section;
• manufacturing standard;
• wiring diagram.

💡 Important: a 50 A circuit breaker must be selected according to the permissible current of the cable, not only the total power of connected equipment. Installation and terminal tightening must be performed by a qualified electrician.