Skip to main content
Log in
Siemens 5SP3825-2 — 1-Pole MCB (DIN Rail)

Siemens 5SP3825-2 SENTRON MCB, 3P, 25 A, 25 kA, Char E

MPN5SP3825-2
Active

Siemens SENTRON 5SP3825-2, 3-pole miniature circuit breaker, 25 A rated current, 25 kA breaking capacity, tripping characteristic E, 400 V AC.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SP3825-2 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles3
Application suitabilityResidential buildings/infrastructure
5SP3825-2 — Electrical & Protection
ParameterValue
Tripping characteristic classE
Rated value (EN 60898)25 kA
Overvoltage categoryIV
5SP3825-2 — Mounting & Connection
ParameterValue
Fastening methodBusbar
Height151.3 mm
Depth89.5 mm
Modular width units4.5
Torque, min.-40 °C
Torque, max.70 °C
SealableYes
5SP3825-2 — Environmental
ParameterValue
IP protection classIP40, with connected conductors
Pollution degree3

Product details

The Siemens 5SP3825-2 is a SENTRON main miniature circuit breaker, 3-pole, rated 25 A at AC with a breaking capacity of 25 kA per EN 60898.

Integration notes

Mounts via busbar fastening — no DIN rail required, though it fits standard 4.5 MW (modular width) panel cutouts. Depth is 89.5 mm (76.3 mm enclosure depth), height 151.3 mm. Terminal accepts 2.5 to 50 mm² solid or stranded copper — enough for the 25 A feeder without pigtail adapters. IP40 with conductors connected, sealable with locking slide, wire seal, or cable ties. Supply infeed at the box terminal, position stipulated for lower-section meter panel installation per the manufacturer. Shock-rated to 30 g, 3 impacts, 11 ms duration — survives transport and panel handling.

Thermal derating

Rated 25 A at 30 °C ambient. Derates to 23.75 A at 40 °C, 22.5 A at 50 °C, and 21.875 A at 55 °C.

Frequently asked questions

What is the breaking capacity of 5SP3825-2?

25 kA per EN 60898 at 400 V AC. That's the rated short-circuit capacity — it interrupts faults up to that level without damage.

Where can I buy 5SP3825-2 and what is the lead time?

We source it through independent distribution channels. Availability and current pricing are confirmed at quote time against an RFQ — no fixed stock figures here, but it's a current-production part so lead times are generally reasonable.

Will 5SP3825-2 drop into a panel specified for 5SJ6325-7RC?

Both are 3-pole Siemens MCBs, but the 5SJ6325-7RC is a 6 kA B-curve unit while the 5SP3825-2 is a 25 kA E-curve. Footprint and terminal range are similar, but the tripping characteristic and breaking capacity differ — verify coordination before swapping.

What compliance documentation does Siemens provide for 5SP3825-2?

The part carries IEC 60898 rating (25 kA), overvoltage category IV, pollution degree 3, and is designed for residential/infrastructure use. Standard Siemens declarations (CE, UKCA) apply; specific RoHS/REACH declarations are available on request.

MPN
5SP3825-2