Tesla TMCB3P25D HPC2 MCB 25A 3 Pole D Curve 6kA Motor Start 415V DIN Rail

Description

Motor-start protection that holds under inrush

The Tesla TMCB3P25D is a 25 amp, three-pole D-curve miniature circuit breaker built for circuits with high inductive inrush. With a 6kA breaking capacity and D-curve tripping characteristic, it protects against overload and short circuit while tolerating the momentary surge that motors and transformers draw at start-up.

Key Features

• 25A rated current, 3 pole (415V)
• D-curve tripping characteristic - motor start rated
• 6kA breaking capacity (6000A)
• Standard: IEC/EN 60898
• 3 module DIN-rail mount
• Pillar terminal with clamp, rigid conductor up to 25mm²
• Rated frequency 50/60Hz
• IP20 rated
• Mechanical life 10,000 cycles / electrical life 4,000 cycles

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Why it Matters

Built for inductive loads
D-curve breakers trip between 10 and 20 times rated current, so they ride through the brief high-current surge when a motor spins up instead of nuisance-tripping. That makes the TMCB3P25D suited to circuits feeding motors, transformers and similar equipment where a standard C-curve device would trip on inrush.

Three-pole switching
All three phases are switched together, giving full isolation of a three-phase circuit from a single toggle. The 6kA breaking capacity handles the fault levels found in commercial and light industrial distribution boards.

Standards and build
Manufactured to IEC/EN 60898 with a bi-metal thermal element for overload and a magnetic element for short-circuit protection. The pillar terminals clamp rigid conductors up to 25mm² for a secure connection on the DIN rail.

Is the Tesla TMCB3P25D suitable for motor circuits?
Yes. The D-curve characteristic is designed to tolerate motor start-up inrush without nuisance tripping, while still protecting against sustained overload and short circuit.

What is the breaking capacity of this circuit breaker?
It has a 6kA (6000A) breaking capacity, suitable for commercial, domestic and light industrial distribution boards.

How many DIN-rail modules does it occupy?
The three-pole HPC2 breaker occupies 3 modules on a standard DIN rail.

Warranty

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