Tesla RCDM3PN32 32 Amp 3P+N RCBO Safety Switch 6kA 30mA A Type C Curve Three Module 53mm IP20 400V

Description

Three phase protection for heavier subcircuits.

The Tesla RCDM3PN32 pairs a 32 A C curve circuit breaker with a 30 mA A Type residual current device across a 3P+N configuration. It gives a three phase final subcircuit dedicated earth leakage, overload and short circuit protection in 53 mm of board width.

Key Features

• Rated current 32 A with C curve characteristic
• Rated operating current 30 mA
• A Type residual operating characteristic
• Breaking capacity 6000 A
• 3P+N configuration, active poles switched
• 53 mm width, three standard modules
• Rated voltage 400/415 V AC at 50/60 Hz
• Dielectric strength 2500 V
• Cable termination to 25 mm2
• Terminal tightening torque 2.5 Nm
• 900 mm neutral lead supplied
• IP20 degree of protection
• Mounts to 35 mm DIN rail

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Why It Matters

Three modules instead of four

Fitting three phase earth leakage protection normally costs a three pole breaker plus a separate residual current device, or a four module combination unit. This device carries both functions across three modules, so a 32 A three phase circuit gets its own dedicated protection without a fourth way of board space going to it, and a leakage fault on that circuit drops that circuit alone.

Only the three active poles are switched. The neutral runs through on the 900 mm lead supplied with the unit, which is what references the residual current element. Total width is 53 mm and it clips to standard 35 mm DIN rail.

A Type covers what modern loads actually leak

A Type devices respond to sinusoidal AC residual current and to pulsating DC residual current. That second waveform is what electronic loads produce: variable speed drives, LED drivers, switch mode power supplies, inverters and appliance electronics. A device limited to the AC waveform can be masked by a pulsating DC component and fail to see a genuine fault. Rated operating current here is 30 mA, the sensitivity figure used for personnel protection duty, while the 32 A overcurrent element handles the circuit breaker half of the job in the same body.

C curve sized for the inrush a 32 A three phase circuit draws

The overcurrent element runs a C curve, which rides through the starting inrush that three phase motors, drives and transformer fed equipment produce, while still clearing real overloads and short circuits. Voltage rating is 400/415 V AC across 50/60 Hz, with 6000 A of breaking capacity.

Terminations accept cable to 25 mm2, which matters at this rating, and the terminals are torqued to 2.5 Nm. Dielectric strength is 2500 V and the IP20 degree of protection suits the enclosed switchboard these are built to sit inside rather than exposed or weather affected positions.

Is the Tesla RCDM3PN32 an A Type or AC Type RCBO?
It is an A Type device. The residual operating characteristic is A Type, so it picks up pulsating DC residual current as well as sinusoidal AC residual current. The tripping curve is C and rated operating current is 30 mA, the personnel protection sensitivity figure.

How much switchboard space does the Tesla RCDM3PN32 take up?
It measures 53 mm across, which is three standard modules on 35 mm DIN rail. The configuration is 3P+N with the three active poles switched and a 900 mm neutral lead supplied with the device.

What size cable can the Tesla RCDM3PN32 terminals accept?
Cable termination on this unit is rated to 25 mm2, with a terminal tightening torque of 2.5 Nm. Dielectric strength is 2500 V, breaking capacity is 6000 A and the degree of protection is IP20.

Warranty

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