5SY6240-7

The Siemens SENTRON 5SY6 series two-pole miniature circuit breaker features a C-characteristic curve, a rated current of 40A, a rated voltage of 230/400V AC, and a short-circuit breaking capacity of 6kA. It is suitable for overload and short-circuit protection in general power circuits.

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Siemens SENTRON 5SY6240-7 Two-pole Type C 40A Miniature Circuit Breaker

Product Positioning

The SENTRON 5SY6240-7 is a Siemens 5SY6 series two-pole C-characteristic miniature circuit breaker with a rated current of 40A. It is suitable for overload and short-circuit protection of general power circuits in distribution boxes.

Core Product Advantages and Features

Moderate current specifications

With a rated current of 40A, it covers common power circuit requirements, has a wide range of applications, and offers high flexibility in selection.

C-type bounce characteristics

It adopts a C-characteristic jump curve, which can withstand the brief surge current during load startup without malfunctioning.

6kA short circuit breaking capacity

Rated short-circuit breaking capacity up to 6kA (according to EN 60898-1), ensuring that fault current is quickly isolated.

Compact installation design

It adopts a 35mm DIN rail snap-fit installation, requiring only 18mm width per pole, making the distribution box configuration more flexible.

project	Specification
Extreme number	2P (two poles)
Rated current (In)	40 A
breakout characteristic curve	C characteristics
Rated voltage	230/400 V AC
Rated short-circuit breaking capacity (Icn)	6 kA (according to EN 60898-1 standard)
Applicable Standards	Compliant with EN 60898-1 and EN 60947-2; also certified with UL 1077 and CSA C22.2 No.235.
Installation method	35mm DIN rail quick-release mounting, 18mm width per module.

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