Tesla TMCB3P32D Circuit Breaker 32 Amp 415V Three Pole 6kA Rating D Curve Motor Start

Description

D curve headroom for high inrush loads.

The Tesla TMCB3P32D is a three pole 32 A miniature circuit breaker from the HPC2 Series with a D tripping characteristic and 6 kA breaking capacity at 415V. GTS lists it as a motor start device, the D curve holding through the heavy inrush that trips a lower characteristic.

Key Features

• Rated current: 32 A
• Three poles, 3 module
• Rated voltage: 415V
• Breaking capacity: 6000 A
• Tripping characteristic: D
• Listed by GTS as a motor start device
• Protection against overload and short circuit in the electrical distribution system
• Bi-metal overload tripping mechanism
• Pillar terminal with clamp, rigid conductor up to 25mm2
• Rated frequency: 50/60Hz
• IP20
• Mechanical life 10000 cycles, electrical life 4000 cycles
• Standard: IEC/EN60898
• Approval number V08030
• Tesla part number TMCB3P32D
• Supplied individually, boxed in 4, outer of 40

Secure yours now for fast dispatch Australia-wide.

What the D Characteristic Changes

The tripping curve sets how long a breaker tolerates a current surge before the magnetic element operates. A D characteristic holds for longer than the B or C characteristics at the same multiple of rated current, so a load that draws a large, brief surge at switch on can come up without nuisance tripping.

That is the whole reason this variant exists alongside the standard characteristic TMCB3P32. Same 32 A rating, same three poles, same 6 kA capacity, different response to inrush. If a standard characteristic device on the circuit trips at start up but runs fine once loaded, the D variant is the direct swap.

Overload and Short Circuit Duty

Two separate mechanisms do the work. A bi-metal element handles overload, heating and bending in proportion to sustained current so a slow overload is cleared before the cable is damaged. The magnetic element handles short circuit, operating fast on a genuine fault. Both sit in a device rated to interrupt 6000 A.

Termination is by pillar terminal with clamp, taking rigid conductor up to 25mm2. That gives adequate room at 32 A without needing a lug or reducer.

Where Tesla Positions This Range

Tesla states that the 6 kA breaking capacity of these MCBs suits commercial, domestic and industrial applications, and that the D characteristic is intended to suit most applications. That is the manufacturer's own positioning for the HPC2 D curve family rather than a narrower recommendation.

GTS lists the part as a motor start device. Both descriptions point the same way: a general purpose D curve breaker for circuits where inrush is the deciding factor rather than steady state load.

Build and Rating Detail

The TMCB3P32D occupies 3 module and carries an IP20 rating. Rated frequency is 50/60Hz, so it is suited to Australian supply. Mechanical life is 10000 cycles and electrical life 4000 cycles.

The device is built to IEC/EN60898 and carries approval number V08030. The D curve range runs 10 A to 63 A in this three pole format, so stepping up or down a rating keeps the same footprint and the same termination.

Q: What is the difference between the Tesla TMCB3P32D and the TMCB3P32?
A: Only the tripping characteristic. The TMCB3P32D is a D curve device for high inrush loads, while the TMCB3P32 is the standard characteristic. Both are three pole, 32 A, 6 kA.

Q: What is the breaking capacity of the Tesla TMCB3P32D?
A: It is 6000 A, or 6 kA, at a rated voltage of 415V, built to IEC/EN60898 under approval number V08030.

Q: What size conductor does the Tesla TMCB3P32D accept?
A: It uses a pillar terminal with clamp and accepts rigid conductor up to 25mm2.

Warranty

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