Tesla MCB1P20 Single Pole 20 Amp 6kA C Curve Miniature Circuit Breaker

Description

Twenty amps, single phase. Hot water, air con, dedicated appliances.

The Tesla MCB1P20 is a Single Pole 20A 6kA C Curve Miniature Circuit Breaker built to IEC/EN60898. At 20A it's one of the most widely used single-phase MCB ratings in Australian switchboards — the standard choice for hot water systems, split system air conditioners, and dedicated appliance circuits across residential and commercial installations.

• Single Pole / 20A / 6kA breaking capacity
• C Curve — general-purpose, handles moderate inrush
• 240V AC / 50-60Hz
• Thermal-magnetic trip — bi-metal overload + magnetic short-circuit
• DIN rail mount — 1 module width, 35mm rail
• Pillar clamp terminal — rigid conductor up to 25mm²
• IP20 rated for enclosed switchboard installation
• IEC/EN60898 — Australian approval number V08030
• Mechanical life: 10,000 cycles | Electrical life: 4,000 cycles
• HPC2 Series — available 10A to 63A

Fast shipping across Australia — order online now for quick dispatch.

The Standard Rating for Hot Water and Air Conditioning Circuits

The 20A single pole MCB is the most frequently specified dedicated appliance circuit breaker in Australian residential switchboards. Electric hot water systems and split system air conditioners are almost universally wired to 20A circuits — making the MCB1P20 a staple on every domestic build and renovation job. The thermal-magnetic trip delivers two-stage protection: bi-metal for sustained overloads, magnetic for instantaneous short-circuit response. At 6kA it's rated for fault levels across Australian residential and commercial switchboards.

Beyond hot water and air conditioning, the 20A rating covers ovens, dishwashers, washing machines, and fixed commercial appliances where a 16A circuit doesn't provide sufficient headroom. In commercial fit-outs, it protects dedicated equipment circuits in hospitality, retail, and office environments.

Termination and Installation

Clips straight onto 35mm DIN rail. The pillar clamp terminal accepts rigid conductors up to 25mm² — no ferrules required. At 1 module wide, it keeps boards compact even when multiple dedicated appliance circuits are required. IP20 is appropriate for any enclosed switchboard or distribution enclosure.

Q: Is the MCB1P20 the correct breaker for a hot water system circuit?
A: Yes — 20A is the standard circuit breaker rating for single-phase electric storage hot water systems in Australian residential installations. Always confirm the hot water unit's rated current draw and cable sizing with the installation instructions and AS/NZS 3000 before selecting the final breaker rating.

Q: Is the Tesla MCB1P20 approved for use in Australian switchboards?
A: Yes. The MCB1P20 carries Australian regulatory approval number V08030 and is manufactured to IEC/EN60898. It is suitable for use in compliant Australian residential, commercial, and light industrial switchboard installations.

Q: What conductor sizes does the MCB1P20 accept?
A: The pillar clamp terminal accepts rigid (solid or stranded) copper conductors up to 25mm². This covers conductor sizes typically associated with a 20A single-phase dedicated appliance circuit in residential and commercial switchboard applications.

Warranty

This product is backed by an extended manufacturer warranty - click here for details.