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Siemens 5SL6520-6 — 1-Pole MCB (DIN Rail)

Siemens 5SL6520-6 SENTRON MCB, 20A 1P+N B-curve 6kA

MPN5SL6520-6
Active

Siemens SENTRON 5SL6520-6 miniature circuit breaker, 1P+N, 20 A, B-curve, 6 kA breaking capacity, 230 V AC, 2 MW.

Siemens 5SL6520-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6520-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Application suitabilityResidential buildings/infrastructure
5SL6520-6 — Electrical & Protection
ParameterValue
Tripping characteristic classB
Rated value (EN 60898)6 kA
Energy limitation class3
Overvoltage categoryIII
5SL6520-6 — Mounting & Connection
ParameterValue
Mounting positionany
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units2
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL6520-6 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

Siemens 5SL6520-6 SENTRON MCB — 20 A, 1P+N, B-curve, 6 kA

The Siemens 5SL6520-6 is a SENTRON miniature circuit breaker (MCB) rated 20 A at 230 V AC, with a B tripping characteristic and a 6 kA breaking capacity per both IEC/EN 60898 and IEC 60947-2.

The 20 A rating at 30 °C is the headline figure for sizing branch circuits. At elevated panel temperatures the continuous current must be derated: 18.79 A at 40 °C, 18.4 A at 45 °C, and 16.8 A at 55 °C (–).

Snap-on DIN rail mount, any position. Sealable for tamper-proofing after commissioning. Halogen-free and silicon-free construction suits installations where off-gassing must be minimized.

Frequently asked questions

Where can I buy 5SL6520-6 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing at the time of order.

What is 5SL6520-6's breaking capacity?

6 kA per both IEC/EN 60898 and IEC 60947-2 at 230 V AC. That rating is the same under either standard, so it covers residential and light commercial fault levels.

What compliance documentation does this brand provide for 5SL6520-6?

The SENTRON series carries IEC/EN 60898 and IEC 60947-2 certifications. The part is halogen-free and silicon-free. For specific RoHS/REACH declarations or UL listing, request the manufacturer's compliance documentation with your RFQ.

MPN
5SL6520-6