Siemens 5SY6104-7 SENTRON C4 4A 1 Pole 6kA Miniature Circuit Breaker MCB – NOS

$19.99

This item is new and has never been used. It may be unused in its original packaging, be old stock, new open-box, new out of box, or never installed. Packaging might be missing, opened, or show minor damage. The item is fully functional and includes all accessories shown in the listing and images, unless otherwise noted.
SKU: 859289
In stock (7 available)
  • Free Shipping Lower 48

    Free Shipping Lower 48

  • 30-Day Returns

    30-Day Returns

  • 90-Day Warranty

    90-Day Warranty

Manufacturer:

Model Number: Miniature Circuit Breaker (MCB)

Series: SENTRON 5SY6

MPN: 5SY6104-7

Listed Item Condition: New/New Other

Product Details:

Summary

This was part of a lot of electric/electronic parts and components that were mounted in a cabinet but never actually commissioned. The cabinet was part of a motor control system for a yacht that was undergoing an extensive refit. The refit hit an unrelated roadblock which ended in the entire project being abandoned. Since this cabinet was built for a very specific and custom application, we disassembled it and are piece-mealing out all of the parts and components. While this may show signs of being mounted, and may have a scratch or two from storage and moving, it has 150% never actually been “used” and is therefore listed as new(other). As with anything of this nature, we back the item with a 90 day warranty and 30 day return policy.

  • This is a multiple quantity listing and the unit that you will receive may be different than the unit shown, but is in the same cosmetic condition.
  • Item includes the Siemens 5SY6104-7 miniature circuit breaker shown. No original box, instructions, or additional accessories are included.
  • Please review all photos for the exact item, condition, and components included.
  • Please note: Marker writing from the original staging process is present beneath the yellow identification sticker.

Product Description

Siemens 5SY6104-7 SENTRON miniature circuit breaker featuring a 4A rated current, C-curve tripping characteristic, and single-pole configuration. Rated for 230/400V AC operation with a 6kA breaking capacity according to IEC/EN 60898-1.

Designed for DIN rail installation, this compact circuit breaker provides overcurrent and short-circuit protection for electrical distribution panels and industrial control systems.

Product Information

- Manufacturer - Siemens
- Model Number - 5SY6104-7
- Series - SENTRON 5SY6
- MPN - 5SY6104-7
- Product Type - Miniature Circuit Breaker (MCB)
- Number of Poles - 1
- Rated Current - 4A
- Tripping Characteristic - C Curve
- Rated Operating Voltage - 230/400V AC
- Rated Frequency - 50/60Hz
- Breaking Capacity (IEC/EN 60898-1) - 6kA
- Energy Limiting Class - 3
- Ultimate Breaking Capacity (IEC/EN 60947-2, Icu) - 30kA at 230V AC (As Marked)
- Service Breaking Capacity (Ics) - 23kA at 230V AC (As Marked)
- Rated Impulse Withstand Voltage - 4kV
- Connection Type - Screw Terminals
- Maximum Terminal Tightening Torque - 3.5 Nm
- Mounting Type - DIN Rail
- Standards - IEC/EN 60898-1, IEC/EN 60947-2
- Country of Origin - Germany
- EAN - 4001869246024
- Condition - New (Other) / NOS
- Quantity - 1 Circuit Breaker
- Included - Siemens 5SY6104-7 Miniature Circuit Breaker
- Not Included - Original Box, Instructions, or Additional Accessories

What's Included:

  • Siemens 5SY6104-7 SENTRON C4 4A 1 Pole 6kA Miniature Circuit Breaker

Compatible Parts:

Return Info: 30-Day Returns

Warranty Info: 90-Day Warranty

Dimensions: 4 × 1 × 3 in, Weight: 0.5 lbs

Shipping Info: Free shipping applies to items being delivered within the contiguous United States (lower 48). HI, AK, PR, and all other US Territories, and International locations will have shipping calculated during checkout. Please be advised if the item is large or is a multi-piece shipment, shipping quotes may be inaccurate due to restrictions outside of our control, in those instances you will be contacted promptly.

Terms:

All items sold at Max Marine Electronics come as you see in the pictures provided, with only the parts and accessories stated in the description section named “What’s Included”. IF YOU DO NOT SEE SOMETHING YOU EXPECT TO BE INCLUDED IN THE DESCRIPTION WE PROVIDE, IT WILL NOT BE INCLUDED. Read all descriptions thoroughly. There are times when a display is used only to show the item being sold is functional and working properly. In this case, these displays are not included. If you have any questions feel free to reach out to Max Marine Electronics. We always want to be transparent with our customers and fully disclose any information regarding the products we sell.

***PLEASE NOTE***Buyers outside the contiguous United States:
We strive to provide accurate shipping quotes at checkout. However, for satellites, radars, large items, or multi-piece shipments, system and carrier limitations may sometimes result in incorrect estimates. If this happens with your order, our team will reach out to you right away to ensure you receive the best possible shipping solution. Your satisfaction is our priority!

Categories Power Management » Circuit Protection
QTY Available 7
Date Added Oct 9, 2026
Location

2029306

More Siemens Products