Siemens

5ST3040

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Siemens

If you're unsure whether this part is a perfect match, please contact us.

Condition Warehouse Stock Price
New Sealed
Full 24 months warranty
Est. shipping: September 11 2026
WM66-5S Enquire now £34.00 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: August 10 2026
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New Sealed
Full 24 months warranty
Est. shipping: August 14 2026
WM59-5S Low stock - Get Quote
New Sealed
Full 24 months warranty
Est. shipping: August 13 2026
WM44-5S 10+ in stock - Get Quote
New
Full 12 months warranty
Est. shipping: August 13 2026
WM44-5S 15+ in stock - Get Quote
Used
Full 12 months warranty
Est. shipping: August 13 2026
WM44-5S 15+ in stock - Get Quote
Buying more than one? Get Quote
Part Information:
Part Number:
5ST3040
Manufacturer:
Availability:
45+ available from our partners
Conditions:
New Sealed, New and Used
Warranty:
Full 24 months warranty
Full 12 months warranty
Lead Time:
Need it Faster? Please Check With CJS
System ID Number:
4356611
Shipping:
We deliver worldwide
Weight:
0.12kg
Dimensions:
80mm x 97mm x 30mm
Also Known As:
5ST3040
Our Warehouse Description:

The 5ST3040 is an undervoltage release with two contacts (two normally open), designed for control circuits operating at a rated voltage of 230V AC at 50 Hz. It features six terminals suitable for connection to miniature circuit breakers such as 5SL4, 5SY, 5SP, RCBO 5SU1, and FI 5SV, including compatibility with handle couplers like 5ST3805-1. The device is used to trigger control actions when the supply voltage drops below a specified level, ensuring safety and proper operation of connected equipment.

The above description is based on our office/warehouse notes. Some data may be inaccurate - refer to your part number.
Siemens:

Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.

***CJS Automation is NOT an authorised distributor of Siemens***

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