MCB / AC MCB
AC Miniature Circuit Breakers (1P–4P) for Low Voltage Distribution
TPKELE AC MCBs deliver overload and short-circuit protection for residential, commercial and industrial AC distribution boards. Engineered to IEC 60898-1 with 6kA / 10kA breaking capacity, B/C/D trip curves and 1P–4P pole configurations, they suit panel builders, electrical distributors and EPC contractors who need a reliable, certified AC branch protection device.
AC MCB Products
4 products
AC MCB Technical Parameters
| No. | Parameter Category | Key Specifications |
|---|---|---|
| 01 | Core Electrical Ratings | Rated Current: 1A–125A | Rated Voltage: AC 230V (1P) / 400V (2P / 3P / 4P)Poles: 1P / 1P+N / 2P / 3P / 3P+N / 4P | Breaking Capacity: 4.5kA / 6kA / 10kARated Insulation Voltage (Ui): 500V | Rated Impulse Withstand Voltage (Uimp): 4kV / 6kVFrequency: 50 / 60 Hz |
| 02 | Trip & Protection Characteristics | Protection Types: Overload Protection and Short Circuit ProtectionTrip Curves: B Curve (3–5×In), C Curve (5–10×In), D Curve (10–20×In)Typical Use: B Curve for resistive & lighting loads, C Curve for general distribution, D Curve for inductive & motor loads |
| 03 | Voltage & Pole Configuration | 1P: AC 230V | 2P: AC 230V / 400V3P: AC 400V | 4P: AC 400VAC arcs self-extinguish at current zero crossing — no special DC arc chamber required |
| 04 | Mechanical & Installation Data | Mounting: 35mm DIN Rail | Cable Capacity: 1–25mm² / 1–35mm²Terminal Torque: typically 2.0–3.0 N·m | Mechanical Life: 20,000 cyclesElectrical Life: 6,000–10,000 cycles | Protection Degree: IP20Ambient Temperature: -25°C to +55°C (reference temperature 30°C) |
| 05 | Materials & Safety Features | Housing Material: Flame-retardant PA66, typically UL94 V-0 | Contact Material: Silver AlloyArc Extinguishing: Arc chamber with splitter plates | Polarity: non-polarized, bidirectionalStatus Indication: red/green window | Isolation Function: positive contact indication |
| 06 | Standards & Applications | Standards: IEC 60898-1, EN 60898-1, IEC 60947-2 (industrial)Applications: Residential & commercial distribution boards, lighting and socket circuits, AC motor protection, control panels, sub-distribution |
Mechanical & Installation Parameters
| Parameter | Common Requirement |
|---|---|
| Mounting | 35mm DIN rail |
| Terminal | Top & bottom wiring, copper wire / busbar connection |
| Cable Capacity | 1–25mm² / 1–35mm² |
| Torque | 2.0–3.0 N·m, depends on model |
| Mechanical Life | 20,000 cycles |
| Electrical Life | 6,000–10,000 cycles |
| Protection Degree | IP20 (typical) |
| Ambient Temperature | -25°C to +55°C (reference temperature 30°C) |
Materials & Safety Parameters
| Parameter | Common Requirement |
|---|---|
| Housing Material | Flame-retardant nylon / PA66, typically UL94 V-0 |
| Contact Material | Silver alloy contacts preferred |
| Arc Extinguishing System | Arc chamber with splitter plates; AC arcs self-extinguish at current zero crossing |
| Polarity | Non-polarized, bidirectional; wiring direction not restricted |
| Indicator | Red / green status indication window |
| Isolation Function | Some models can be used as an isolation switch |