Tesla MCB1P80 Miniature Circuit Breaker 80 Amp Single Pole 10kA C Curve 240V Limitation Class 3

Description

Eighty amps of protection, with 10 kA behind it.

Higher-current positions need a breaker that can still interrupt a serious fault. The Tesla MCB1P80 is a single pole 80 amp C curve miniature circuit breaker rated at 10 kA, with limitation class 3, a 27 mm modular footprint and terminals taking 35 mm² flexible conductor.

Key Features

• 80 A rated current, single pole
• 10 kA breaking capacity conforming to IEC 60947-2
• C curve tripping characteristic
• Limitation class 3
• 240 V AC rated voltage
• 50/60 Hz rated frequency
• AC network type
• Connection capacity 35 mm² flexible conductor
• Pillar terminal with clamp
• Lift-up terminals lock every cable strand, with no hot spots
• 27 mm modular spacing, single pole
• Designed to IEC/EN 60898
• Tesla part number MCB1P80, GTS code MCB1P80
• Sold singly, carton of 10

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High Current in a Modular Body

An 80 amp rating usually pushes you towards a moulded case device and the space that comes with it. This breaker keeps the modular format instead, taking 27 mm of spacing for a single pole.

Tesla rates the 10 kA breaking capacity of this range for commercial, domestic and industrial applications, so the same part number suits a modest installation and a much bigger one. One rating covering that span helps when you are standardising on a single device.

Keep the two ratings distinct. The 80 amps is what the breaker carries continuously. The 10 kA is the fault current it can interrupt, and that figure is set by the supply rather than the load, so two installations running identical circuits can call for very different devices.

Terminals Sized for Heavy Cable

Current rating means little if the cable will not land properly. The connection capacity here is 35 mm² for flexible conductor, which is what an 80 amp circuit realistically demands.

The terminals are pillar type with a clamp, and they lift up so the full conductor enters the barrel before anything is tightened. Every strand is captured. That matters on stranded and flexible cable, where a few strands folded outside the clamp cut the effective contact area and create a hot spot under sustained load.

C Curve and Limitation Class 3

The C curve tripping characteristic sits between B and D. It rides through the short inrush that switching loads draw at start-up, while still clearing a genuine overload or short circuit. Tesla supplies this range with C curve characteristics to suit most applications.

Limitation class 3 is the tightest of the three classes defined for energy limiting. It describes how much let-through energy passes before the contacts part on a heavy fault. A lower figure means less thermal and mechanical stress on the cable and the equipment downstream, which is worth having at this current rating.

Q: What is the breaking capacity of the Tesla MCB1P80?
A: It is rated at 10 kA, conforming to IEC 60947-2. Tesla positions the 10 kA rating of this range for commercial, domestic and industrial applications.

Q: What size cable will the Tesla MCB1P80 terminals take?
A: The connection capacity is 35 mm² for flexible conductor. The terminals are pillar type with a clamp and lift up so that all strands are locked in and no hot spot forms.

Q: Is the Tesla MCB1P80 a B curve or a C curve breaker?
A: It is a C curve breaker. Tesla lists it in the MCB 10kA 1 Pole C Curve range, and the product data sheet gives the curve code as C. Any listing showing it as type B is incorrect.

Warranty

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