What this 25 A D-curve MCB means for your panel
The Siemens 5SY6625-8 is a 4-pole (3P+N) miniature circuit breaker from the SENTRON 5SY6 family, rated 25 A at 400 V AC with a D tripping characteristic.
Siemens 5SY6625-8 SENTRON MCB, 25 A, D-curve, 4-pole, 400 V
MPN5SY6625-8
Siemens SENTRON 5SY6 series, miniature circuit breaker (MCB), 4-pole 3P+N, 25 A, D tripping characteristic, 400 V AC, breaking capacity 6 kA per EN 60898 / 15 kA per IEC 60947-2.
$510.43Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
Product details
Frequently asked questions
Where can I buy 5SY6625-8 and what is the lead time?
This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time; no stock or lead-time figure is published here.
What is the breaking capacity of 5SY6625-8?
6 kA per EN 60898, 15 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No. 235. The IEC 60947-2 rating governs panel SCCR in most industrial switchgear.
Will 5SY6625-8 drop into a panel specified around 5SY4140-7 without rewiring?
Both are 4-pole SENTRON MCBs with the same DIN-rail footprint and 72 mm width. The 5SY6625-8 is a 25 A D-curve; the 5SY4140-7 is a lower-current variant. If the panel bus and load circuit are rated for 25 A and need a D-curve, the swap is direct — same terminal range (0.75–35 mm²) and same mounting. Check the load's inrush characteristic: the D-curve on the 5SY6625-8 is appropriate for motor or transformer loads, while the 5SY4140-7 may carry a different curve.
MPN
5SY6625-8