Circuit Breakers & Protection Categories

Miniature Circuit Breakers (MCB)

Molded Case Circuit Breakers (MCCB)

Air Circuit Breakers (ACB)

Residual Current Devices (RCD)

Arc Fault Detection Devices (AFDD)

Surge Protective Devices (SPD)

Circuit Breakers & Protection

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Mersen 83070108 PVBT2-1000V-BH-225 PV string box 2 MPPTs, 2 strings per MPPT, with 5 pole Type 2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen

Mersen 83070108 PVBT2-1000V-BH-225 PV string box 2 MPPTs, 2 strings per MPPT, with 5 pole Type 2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen 83070106 PVBT12-1000V-BH-213 PV string box 2 MPPTs with Type 1+2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen

Mersen 83070106 PVBT12-1000V-BH-213 PV string box 2 MPPTs with Type 1+2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen 83070104 PVBT2-1000V-BH-213 PV string box 2 MPPTs with Type 2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen

Mersen 83070104 PVBT2-1000V-BH-213 PV string box 2 MPPTs with Type 2 SPDs 1000V (without remote indication) and MC4 connectors.

Mersen 83070102 PVBT12-1000V-BH-113 PV string box 1 MPPT with Type 1+2 SPD 1000V (without remote indication) and MC4 connectors.

Mersen

Mersen 83070102 PVBT12-1000V-BH-113 PV string box 1 MPPT with Type 1+2 SPD 1000V (without remote indication) and MC4 connectors.

Mersen 83070100 PVBT2-1000V-BH-113 PV string box 1 MPPT with Type 2 SPD 1000V (without remote indication) and MC4 connectors

Mersen

Mersen 83070100 PVBT2-1000V-BH-113 PV string box 1 MPPT with Type 2 SPD 1000V (without remote indication) and MC4 connectors

Mersen 83070016 PVBT12-1000V-B-215 PV string box 2 MPPT (1 string per MPPT) with 5 pole Type 1+2 SPD 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070016 PVBT12-1000V-B-215 PV string box 2 MPPT (1 string per MPPT) with 5 pole Type 1+2 SPD 1000V (without remote indication) and cable glands.

Mersen 83070014 PVBT2-1000V-B-215 PV string box 2 MPPT (1 string per MPPT) with 5 pole Type 2 SPD 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070014 PVBT2-1000V-B-215 PV string box 2 MPPT (1 string per MPPT) with 5 pole Type 2 SPD 1000V (without remote indication) and cable glands.

Mersen 83070010 PVBT12-1000V-B-225 PV string box 2 MPPT (2 string per MPPT) with 5 poles Type 1+2 SPD 1000V (without remote indication) and cable glands

Mersen

Mersen 83070010 PVBT12-1000V-B-225 PV string box 2 MPPT (2 string per MPPT) with 5 poles Type 1+2 SPD 1000V (without remote indication) and cable glands

Mersen 83070008 PVBT2-1000V-B-225 PV string box 2 MPPT (2 string per MPPT) with 5 poles Type 2 SPD 1000V (without remote indication) and cable glands

Mersen

Mersen 83070008 PVBT2-1000V-B-225 PV string box 2 MPPT (2 string per MPPT) with 5 poles Type 2 SPD 1000V (without remote indication) and cable glands

Mersen 83070006 PVBT12-1000V-B-213 PV string box 2 MPPTs with Type 1+2 SPDs 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070006 PVBT12-1000V-B-213 PV string box 2 MPPTs with Type 1+2 SPDs 1000V (without remote indication) and cable glands.

Mersen 83070004 PVBT2-1000V-B-213 PV string box 2 MPPTs with Type 2 SPDs 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070004 PVBT2-1000V-B-213 PV string box 2 MPPTs with Type 2 SPDs 1000V (without remote indication) and cable glands.

Mersen 83070002 PVBT12-1000V-B-113 PV string box 1 MPPT with Type 1+2 SPD 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070002 PVBT12-1000V-B-113 PV string box 1 MPPT with Type 1+2 SPD 1000V (without remote indication) and cable glands.

Mersen 83070000 PVBT2-1000V-B-113 PV string box 1 MPPT with Type 2 SPD 1000V (without remote indication) and cable glands.

Mersen

Mersen 83070000 PVBT2-1000V-B-113 PV string box 1 MPPT with Type 2 SPD 1000V (without remote indication) and cable glands.

Mersen 83060101 POP-40K230V-CT-4PM SPD+POP protector, actuates contactor of the installation, Type 2 / Class II, 4 poles (4P), 40 kA (8/20), 230 V

Mersen

Mersen 83060101 POP-40K230V-CT-4PM SPD+POP protector, actuates contactor of the installation, Type 2 / Class II, 4 poles (4P), 40 kA (8/20), 230 V

Mersen 83060100 POP-40K230V-CT-4P SPD+POP protector, actuates contactor of the installation, Type 2 / Class II, 4 poles (4P), 40 kA (8/20), 230 V

Mersen

Mersen 83060100 POP-40K230V-CT-4P SPD+POP protector, actuates contactor of the installation, Type 2 / Class II, 4 poles (4P), 40 kA (8/20), 230 V

Mersen 83040220 STS-PLC-30V-2W SPD for PLC, terminal block format, 5 kA, 30 V and 2 protected wires.

Mersen

Mersen 83040220 STS-PLC-30V-2W SPD for PLC, terminal block format, 5 kA, 30 V and 2 protected wires.

Mersen 83020185 STPT2-40K275V-4P-TE Surge Protection Device, Type 2, 4 poles, Three Phase, 40kA(8/20), 230/400V, with TERRA technology for grounding status indication.

Mersen

Mersen 83020185 STPT2-40K275V-4P-TE Surge Protection Device, Type 2, 4 poles, Three Phase, 40kA(8/20), 230/400V, with TERRA technology for grounding status indication.

Mersen 83020183 STPT2-40K275V-2P-TE Surge Protection Device, Type 2, 2 poles, Single Phase, 40kA(8/20), 230V, with TERRA technology for grounding status indication.

Mersen

Mersen 83020183 STPT2-40K275V-2P-TE Surge Protection Device, Type 2, 2 poles, Single Phase, 40kA(8/20), 230V, with TERRA technology for grounding status indication.

Mersen 83010107 STMT1-50K440V-1P Surge Protection Device Type 1, 50kA Iimp (10/350), 1Ph, 400V, L-N, 1 Pole, Monobloc, 2 Modules

Mersen

Mersen 83010107 STMT1-50K440V-1P Surge Protection Device Type 1, 50kA Iimp (10/350), 1Ph, 400V, L-N, 1 Pole, Monobloc, 2 Modules

Mersen 83010104 STMT1-50K320V-1P Surge Protection Device Type 1, 50kA Iimp (10/350), 1Ph, 277V, L-N, 1 Pole, Monobloc, 2 Modules

Mersen

Mersen 83010104 STMT1-50K320V-1P Surge Protection Device Type 1, 50kA Iimp (10/350), 1Ph, 277V, L-N, 1 Pole, Monobloc, 2 Modules

Circuit breakers and protection devices from ABB, Siemens, Schneider Electric and Mersen cover the full low-voltage protection chain, from miniature circuit breakers to air circuit breakers up to 6300 A. The range includes MCB, MCCB, ACB, residual current devices, arc fault detection devices and surge protective devices in 1 to 4 poles, with more than 4,500 listed products. Stoklink ships worldwide from Turkey and quotes project volumes on request.

What's in this range

Miniature Circuit Breakers (MCB) – DIN-rail overcurrent protection for final circuits and distribution boards.
Molded Case Circuit Breakers (MCCB) – feeder and motor-circuit protection with adjustable trip units.
Air Circuit Breakers (ACB) – main incomer and bus-tie breakers from 630 A to 6300 A.
Residual Current Devices (RCD) – earth-leakage protection against shock and fire.
Arc Fault Detection Devices (AFDD) – detection of series and parallel arcs in final circuits.
Surge Protective Devices (SPD) – protection of installations against transient overvoltage.

How to choose

Rated current and pole count, matched to the load and the neutral arrangement.
Breaking capacity at the installation voltage, at or above the prospective short-circuit current.
Standard: IEC 60898-1 for household and similar MCBs, IEC 60947-2 for industrial breakers, IEC 61008 and 61009 for RCDs.
Trip characteristic or trip unit type, and coordination with upstream and downstream devices.

FAQ

What is the difference between an MCB and an MCCB?

An MCB is a DIN-rail breaker for final circuits, usually with fixed thermal-magnetic tripping. An MCCB covers higher currents and short-circuit levels and often has adjustable or electronic trip units.

Do I need an RCD in addition to a circuit breaker?

Yes, where earth-leakage protection is required. A standard breaker protects against overload and short circuit, while an RCD detects leakage current to earth.

Can you ship circuit breakers outside Turkey?

Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, so request a quote with your part numbers and quantities.