A9F54316

What does this miniature circuit breaker do?

This device is designed to protect electrical circuits against overloads and short circuits. It uses a thermal-magnetic trip mechanism, combining overload protection for sustained overcurrent conditions with magnetic tripping for rapid response to fault currents.

What are the main electrical ratings?

It is a 3-pole miniature circuit breaker rated at 16 A with a C trip curve. The unit is specified for operation at up to 440 V AC, 50/60 Hz, and is intended for applications where dependable branch circuit protection is required.

What does the C curve mean?

A C curve breaker is generally used where moderate inrush currents may occur, such as in circuits supplying general industrial loads, small motors, or equipment with higher startup current than purely resistive loads. It offers a balanced response between nuisance tripping resistance and fault protection.

How many poles does the breaker have?

This is a 3-pole device, so it can switch and protect three live conductors together. That makes it suitable for many three-phase distribution arrangements where simultaneous disconnection across all poles is needed.

What is the breaking capacity of the device?

The breaker offers an Icn rating of 10 kA at 415 V AC in accordance with EN/IEC 60898-1. Under EN/IEC 60947-2, the datasheet also lists Icu values including 15 kA at 380 to 415 V AC and 10 kA at 440 V AC.

Can this breaker be mounted on a rail?

Yes. It is designed for clip-on mounting to a rail, making it practical for use in control panels and distribution assemblies where fast installation and organized layout are important.

What are the physical dimensions?

The unit measures 54 mm wide, 85 mm high, and 78.5 mm deep. It occupies 6 modules of 9 mm pitch, which helps when planning panel space.

What cable sizes can be connected?

The terminals accept single rigid conductors from 1 to 25 mm² and single flexible conductors from 1 to 16 mm². The recommended wire stripping length is 14 mm, and the tightening torque is 2 N·m.

Does the breaker include a trip indication feature?

Yes. The device includes local trip indication as well as a contact position indicator, helping users identify its operating state more easily during inspection or panel checks.

Is the device padlockable?

Yes. The breaker is padlockable, which can be useful where the switching position needs to be secured during maintenance procedures or controlled access situations.

What environmental conditions is it designed for?

The breaker is rated for operation in ambient temperatures from -35°C to 70°C and storage from -40°C to 85°C. It has an IP20 degree of protection and a pollution degree rating of 3 in accordance with the referenced standards.

Which standards does it comply with?

This Schneider miniature circuit breaker is specified to EN/IEC 60898-1 and EN/IEC 60947-2. These standards are commonly referenced for miniature circuit breakers used in low-voltage distribution and industrial electrical assemblies.