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Used Miniature Circuit Breakers (Mcb) in Zhejiang, China

  • NRT50-32 25A 1P+N Circuit breaker

    NRT50-32 25A 1P+N Circuit breaker

      LApplication: NRT50 1P+N Circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection function. Comb...

      Wenzhou, China
    • NRT50-32 15A 1P+N Circuit breaker

      NRT50-32 15A 1P+N Circuit breaker

        NRT50 1P+N Circuit breaker LApplication: NRT50 1P+N Circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overloa...

        Wenzhou, China
      • NRT50L-32 15A 1P+N residual circuit

        NRT50L-32 15A 1P+N residual circuit breaker

          LApplication: NRT50L 1P+N residual circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection func...

          Wenzhou, China
        • NRT50-32 20A 1P+N Circuit breaker

          NRT50-32 20A 1P+N Circuit breaker

            LApplication: is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection function. Combined with a fuse, it can al...

            Wenzhou, China
          • NRT50L-32/25A 1P+N residual circuit breakers

            NRT50L-32/25A 1P+N residual circuit breakers

              Application: NRT50L 1P+N residual circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection funct...

              Wenzhou, China
            • NRT50L-32/20A 1P+N residual circuit breaker

              NRT50L-32/20A 1P+N residual circuit breaker

                Application: NRT50L 1P+N residual circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection funct...

                Wenzhou, China
              • NRT50L-32/40A 1P+N Residual circuit breakers

                NRT50L-32/40A 1P+N Residual circuit breakers

                  Application: NRT50L 1P+N residual circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection funct...

                  Wenzhou, China
                • NRT50-32 32A 1P+N Circuit breaker

                  NRT50-32 32A 1P+N Circuit breaker

                    LApplication: NRT5 1P+N Circuit breaker is used as a protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 115V~240V, current up to 32A. It has inherent overload protection function. Combi...

                    Wenzhou, China
                  • NKC1-63 4P Circuit Breaker

                    NKC1-63 4P Circuit Breaker

                      NKC1-63 4P Mini Circuit Breaker Technical Data Electrical Features Mechanical Features Installation 2 18-3AWG 2 18-3AWG Tightening torque 2.0 N*m 22In-Ibs Dimensions …

                      Wenzhou, China
                    • NKC1-63 2P Circuit Breaker

                      NKC1-63 2P Circuit Breaker

                        NKC1-63 2P Mini Circuit Breaker Technical Data Electrical Features Mechanical Features Installation 2 18-3AWG 2 18-3AWG Tightening torque 2.0 N*m 22In-Ibs Dimensions …

                        Wenzhou, China
                      • NKC1-63 1P Circuit Breaker

                        NKC1-63 1P Circuit Breaker

                          NKC1-63 1P Mini Circuit Breaker Technical Data Electrical Features Mechanical Features Installation 2 18-3AWG 2 18-3AWG Tightening torque 2.0 N*m 22In-Ibs Dimensions …

                          Wenzhou, China
                        • NKC1-63 3P Circuit Breaker

                          NKC1-63 3P Circuit Breaker

                            NKC1-63 3P Mini Circuit Breaker Technical Data Electrical Features Mechanical Features Installation 2 18-3AWG 2 18-3AWG Tightening torque 2.0 N*m 22In-Ibs Dimensions …

                            Wenzhou, China
                          • NZ47-63 2P Mini Circuit Breaker

                            NZ47-63 2P Mini Circuit Breaker

                              NZ47-63 2P MCB Mini Circuit Breaker Technical Data Electrical Features Mechanical Features Installation 2 18-3AWG 2 18-3AWG Tightening torque 2.0 N*m 22In-Ibs Dimensions： …

                              Wenzhou, China
                            • NZ47-125 3P Mini Circuit Breaker

                              NZ47-125 3P Mini Circuit Breaker

                                Application scope NZ47-125 residual current circuit breaker simply fits onto the right hand side of any NZ47 miniature circuit breaker which forms NZ47LE to provide a high level of protection against earth leakag...

                                Wenzhou, China
                              • NZ47-125 4P Mini Circuit Breaker

                                NZ47-125 4P Mini Circuit Breaker

                                  Application scope NZ47-125 residual current circuit breaker simply fits onto the right hand side of any NZ47 miniature circuit breaker which forms NZ47LE to provide a high level of protection against earth leakag...

                                  Wenzhou, China
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                                Overview

                                Miniature circuit breakers (MCBs) are compact protective switches that interrupt electrical flow in low‑voltage circuits when overloads or short circuits occur. Widely used in residential, commercial and light industrial panels, they offer resettable protection and come in single‑ to multi‑pole versions, various current ratings, breaking capacities and trip curves. MCBs typically mount on DIN rails and use thermal‑magnetic mechanisms; select units that match local standards, busbar size and application requirements.

                                FAQ

                                What should I check when buying an MCB?

                                Verify the nominal current (In), breaking capacity (kA), trip curve (B, C, D), number of poles, mounting type (DIN rail), and compliance with local standards (IEC/UL). Check physical condition, brand reputation and whether spare parts or datasheets are available.

                                How should MCBs be packed and shipped safely?

                                Ship in original or padded boxes to protect terminals and housing. Secure against moisture and vibration, label fragile electrical components, and use a carrier familiar with electrical goods. Include compliance certificates for customs if shipping internationally.

                                What routine maintenance or testing do MCBs need?

                                Perform visual inspections, tighten terminal connections to torque specs, cycle switches periodically, and conduct insulation and trip tests with appropriate equipment. Replace units showing overheating, physical damage, or inconsistent trips.