The Siemens 5SY6120-7 is described by Siemens as: Miniature circuit breaker 230/400 V 6kA, 1-pole, C, 20 A, D=70 mm.
SENTRON 5SY breakers are made in several breaking-capacity versions; the rated short-circuit breaking capacity of this reference is given in the Siemens table below.
See our Siemens range.
Technical data
| Siemens order number | 5SY6120-7 |
|---|---|
| Dimensions (W x H x D) | 18 x 90 x 76 mm |
| Weight, approx. | 0.154 kg |
| Condition | New, original Siemens |
Key features (per Siemens)
- Miniature circuit breaker 230/400 V 6kA
- 1-pole
- 20 A
- D=70 mm
Typical applications
- Control panel protection
- Distribution boards
- Machine power circuits
- Replacing a damaged breaker
Compatibility and replacement
Match the number of poles, the rated current, the tripping characteristic and the breaking capacity to the old breaker.
What to check first
- Check the mounting (DIN rail or screw fixing) and the terminal type (screw or spring-loaded) of the old unit.
- Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.
- Compare the full order number 5SY6120-7 with the label on the old unit, including the last digits (they identify the version).
Frequently asked questions
What is the breaking capacity?
See the rated short-circuit breaking capacity in the Siemens table above.
Does it fit a standard DIN rail?
Yes, 35 mm DIN rail.
Can you help me identify the right replacement?
Yes. Send us a photo of the label of the old part, or its full order number, and we will confirm the exact match or the official successor before quoting.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
How fast can you deliver, and is there a warranty?
Air shipping usually takes 5 to 7 days once the part is ready, to almost any country. Each part is new and original with a 1-year warranty. Message us on WhatsApp with the order number for a quotation.
Before you order
Compare the complete order number on the old unit with this page, including the suffix: in most ranges the last characters set the coil voltage, current range or version. If the label is worn, send us a photo and we will identify the part.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
