Siemens 5SY4540-8

Miniature Circuit Breaker 1P+N 40A 230V

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Siemens 5SY4540-8 Miniature Circuit Breaker 1P+N 40A 230V — Pneumatic & Hydraulic Cylinders
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Product Description

Lifecycle Status:

The miniature circuit breaker features a 1P+N configuration with a current rating of 40 A and operates at a voltage of 230 V. It complies with UL1077 standards and is classified under IEC Mini Circuit Breakers.

With a trip characteristic class of D, this device is designed for environments requiring a high level of protection. It has a width of 36 mm and a depth of 70 mm, making it suitable for various installations.

This model is rated for a short-circuit breaking capacity of 10 kA at 230 V according to EN 60898 and 15 kA under IEC 60947-2 standards. Additionally, it operates effectively in ambient temperatures ranging from -40 °C to 70 °C, with a maximum relative humidity of 95% at 55 °C.

The unit is equipped with touch protection and features a DIN rail mounting method. It allows for the connection of solid-core conductors with a minimum cross section of 0.75 mm² and can accommodate various conductor sizes.

For further specifications, refer to the UL File E116386 in Vol. 1 Sec. 2.

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Offer details

Best offer from:
Trusted supplier — Germany, member since 2024
Availability:
0 pcs.
On Request
Updated at: 04-09-2026
Condition:
New Factory Sealed
New Factory Sealed - A brand-new, unused, unopened, undamaged item in its original manufacturer-sealed packaging.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Siemens
Voltage type
AC
Rated current
40 A
Pollution degree
3
Rated voltage
230 V
Explosion-proof
Over voltage category
3

Available Offers

(2)
5SY4540-8 Siemens, Pneumatic & Hydraulic Cylinders

Siemens

Available:
0 pcs.
On Request
Updated at: 05-09-2026
Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
Warranty:
12 months

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Documents

Data Sheet

Datasheet for Siemens 5SY4540-8, including specifications and features.

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3D CAD model and technical drawings, ready for your design software.

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