Tesla TMCB3P80 Circuit Breaker 80 Amp Three Pole 10kA C Curve 415V 35mm2 Lift-Up Pillar Terminals

Description

Three phase protection above the standard frame.

Standard three pole MCB frames stop at 63 amps. The Tesla TMCB3P80 carries 80 amps across all three poles with a 10kA breaking capacity, giving you overcurrent protection on larger three phase sub-mains and distribution boards without stepping up to a moulded case breaker.

Key Features

• Three pole (3P) miniature circuit breaker
• Rated current: 80A
• Breaking capacity: 10kA (Icn) conforming to IEC 60947-2
• Rated service capacity: 7.5kA (Ics)
• C curve tripping characteristic
• Rated voltage: AC 415/440V
• Rated frequency: 50/60Hz
• Limitation class 3
• Pillar terminal with clamp, flexible conductor up to 35mm2
• Lift-up no hot spot terminals, all cable strands locked in
• 81mm modular spacing (3 pole)
• Standard: IEC/EN60898

Get yours now for fast dispatch right across Australia.

Why it Matters

Capacity Beyond the Standard Range
Most three pole MCB ranges top out at 63 amps, which leaves a gap on larger three phase circuits that still do not warrant a moulded case circuit breaker. At 80 amps the TMCB3P80 fills that gap directly. It suits three phase sub-main protection and larger distribution boards where the load has outgrown a 63 amp device but a full MCCB is more than the installation needs. The 10kA breaking capacity gives headroom on boards with a higher prospective fault current than a domestic supply, while the 7.5kA rated service capacity means the device is built to keep operating after clearing a fault rather than being a one-shot protection. It carries the same C curve and terminal design as the 100 and 125 amp devices in the range, so the whole upper end of the Tesla three pole line stays consistent across a board. It is built to IEC/EN60898 with C curve tripping to suit most general three phase applications.

C Curve for General Distribution
The C curve trips on sustained overloads and short circuits while tolerating the moderate inrush of general three phase loads at switch-on. That makes it a practical choice for mixed distribution boards feeding a combination of motor, lighting and general power circuits. Rated at AC 415/440V and 50/60Hz, it is built for standard Australian three phase supply. Because it conforms to IEC 60947-2 for its breaking capacity, it is suited to industrial distribution where a defined short-circuit performance is required, not only to the general IEC/EN60898 domestic standard.

Terminals Built for Larger Cable
At 80 amps the conductors landing on this breaker are substantial, so the terminals matter. The TMCB3P80 uses lift-up pillar terminals with a clamp that take flexible conductor up to 35mm2 and lock in every strand, giving a safer no hot spot connection under load. Limitation class 3 and the 81mm three pole modular spacing keep it consistent with the wider Tesla circuit protection range, so it seats cleanly alongside other Tesla devices in a distribution board. Fast closure on operation helps limit let-through energy when the breaker is switched onto a live circuit. The pillar terminal with clamp is designed for repeated tightening without damaging the conductor, which matters on the heavier cable that an 80 amp three phase circuit carries.

Is the TMCB3P80 a three pole breaker?
Yes. It is a three pole (3P) miniature circuit breaker rated at 80 amps with a 10kA breaking capacity for three phase circuits.

What curve is the Tesla TMCB3P80?
It is a C curve device, suited to general distribution circuits that carry moderate inrush at switch-on.

What size cable can the TMCB3P80 take?
Its pillar terminals accept flexible conductor up to 35mm2, with a lift-up clamp that locks in all cable strands.

Warranty

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