Circuit Breaker 3P ETI C-32AE 3-pole, 6 kA breaking capacity, C characteristic, 32 A

The Circuit Breaker 3P ETI C-32AE is a three-pole miniature circuit breaker rated for 32 A nominal current with a C tripping characteristic and a 6 kA short-circuit breaking capacity. It is designed for DIN-rail mounting in residential and light commercial distribution panels, providing overcurrent and short-circuit protection for three-phase circuits and motor loads. The compact design allows installation in standard switchboards where coordinated protection of all three poles is required.

Advantages

This ETI three-pole breaker combines a clear C-type thermal-magnetic tripping curve with a 6 kA interrupting capacity, offering reliable protection for general-purpose circuits and moderate inrush currents from motors. Its three-pole construction ensures simultaneous disconnection of all phases, reducing the risk of unbalanced voltages. The device is suitable for straightforward DIN-rail installation and integrates with common distribution systems used in homes and small commercial premises.

Suitable for

• Protection of three-phase distribution circuits in residential and light commercial panels
• Branch circuit protection for motor loads with moderate starting currents
• DIN-rail mounted switchboard applications requiring coordinated three-pole disconnection
• General-purpose circuits with nominal currents up to 32 A

When it may not be suitable

This breaker may not be appropriate where a higher short-circuit interrupting capacity is required, such as industrial sites with fault levels exceeding 6 kA at the point of installation. It is also not intended for circuits that require selective coordination with upstream devices unless system studies confirm compatibility.

Key specifications

• Number of poles: 3-pole
• Rated current: 32 A
• Tripping characteristic: C (thermal-magnetic)
• Short-circuit breaking capacity: 6 kA
• Mounting: DIN-rail
• Intended application: three-phase distribution and motor protection

How to use

Install the breaker on a standard DIN rail according to local electrical codes and the panel manufacturer's instructions. Connect the three phase conductors to the input terminals and the load conductors to the output terminals, ensuring proper torque on terminal screws and correct conductor sizing for 32 A operation. Use the breaker’s manual toggle to switch the circuit on or off for maintenance; verify power is isolated before performing any work. After installation, test the circuit under expected load conditions to confirm correct tripping behavior.

What to consider before purchase

• Confirm the short-circuit fault level at the installation point does not exceed 6 kA
• Verify that a C-type tripping characteristic is appropriate for the connected loads (motor inrush vs. sensitive electronics)
• Ensure the panel has space and DIN-rail capacity for a three-pole device
• Check conductor cross-sections and cable protection requirements for 32 A circuits

Usage recommendations

For reliable operation, coordinate this breaker with upstream protection and follow local wiring regulations. Use for typical three-phase residential or light commercial circuits and for motor feeders with moderate starting currents; avoid installations where higher interrupting ratings or selective coordination are mandatory.