5ST3040

Siemens

Image for illustration purposes only.

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

Enquire now
Full 24 months warranty
Worldwide Delivery

Condition: New Sealed

£41.00

Est. shipping: November 02 2026

Need it quicker? Get a Quote

Condition Warehouse Stock Price
New Sealed
Full 24 months warranty
Est. shipping: November 02 2026
WM71-5S Enquire now £41.00 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: November 09 2026
WM66-5S Enquire now £46.00 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: November 02 2026
WM85-5S Enquire now £46.50 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: November 02 2026
WM94-5S Enquire now £49.00 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: December 18 2026
WM97-5S Enquire now £59.00 Add to Cart
New Sealed
Full 24 months warranty
Est. shipping: October 12 2026
WM22-5S Enquire now - Get Quote
New Sealed
Full 24 months warranty
Est. shipping: October 15 2026
WM44-5S 10+ in stock - Get Quote
New Sealed
Full 24 months warranty
Est. shipping: October 16 2026
WM59-5S Enquire now - Get Quote
New Sealed
Full 24 months warranty
Est. shipping: November 02 2026
WM92-5S Enquire now - Get Quote
15+ in stock
Full 12 months warranty
Worldwide Delivery

Condition: New

Priced on Request

Est. shipping: October 15 2026

Need it quicker? Get a Quote

15+ in stock
Full 12 months warranty
Worldwide Delivery

Condition: Used

Priced on Request

Est. shipping: October 15 2026

Need it quicker? Get a Quote

Buying multiple or need a quote including shipping?

Get a Quote

Fast response times

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.

Part Number:
5ST3040
Manufacturer:
Availability:
40+ 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:
8170969
Shipping:
We deliver worldwide
Weight:
0.12kg
Also Known As:
5ST3040

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***

Part Description:
Undervoltage release 230 V AC, with 6 terminals for miniature circuit breaker 5SL4, 5SY, 5SP RCBO 5SU1, FI 5SV (for 5SU1 handle coupler 5ST3805-1 is required)
Live progress tracking with every order!
Trusted by 100+ manufacturing companies worldwide
Heineken LogoSpace X LogoAmazon LogoTesla LogoBoeing Logo
Worldwide Delivery by Fedex
Secure Payments via
VISAAmexMastercardPayPal
Rated excellent on Trustpilot
4.5
Up to 24 Month Warranty
Coverage based on item condition
24/7 Customer Support
Talk to our experts any time of day
Easy 30 Day Returns
Simple and hassle-free returns policy