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Siemens 5SY6520-6 — 1-Pole MCB (DIN Rail)

Siemens 5SY6520-6 SENTRON MCB, B-Curve 2-Pole 1P+N, 6kA IEC

MPN5SY6520-6
Active

Siemens SENTRON 5SY6520-6 miniature circuit breaker, B-curve, 2-pole (1P+N), 6 kA (IEC 60898-1) / 15 kA (IEC 60947-2), 230 V AC, 60 V DC, 2 MW units, IP20.

Siemens 5SY6520-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY6520-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Pole design1P+N
Application suitabilityMechanical engineering / industry
5SY6520-6 — Electrical & Protection
ParameterValue
Tripping characteristic classB
Energy limitation class3
Overvoltage categoryIII
5SY6520-6 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units2
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY6520-6 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

B-curve tripping and breaking capacity

Breaking capacity is rated at 6 kA per IEC/EN 60898-1 and 15 kA per IEC 60947-2 at 230 V AC. Under DC conditions at 60 V, the IEC 60947-2 rating holds at 15 kA. That dual rating means the 5SY6520-6 can be specified into a panel requiring either standard (60898-1) or industrial (60947-2) fault-current handling, with the higher 15 kA figure typically governing the SCCR calculation for the branch circuit.

The quick-assembly fastening system and combined top/bottom terminals simplify busbar and ring-tongue wiring in crowded enclosures.

Frequently asked questions

What breaking capacity does 5SY6520-6 have?

6 kA per IEC/EN 60898-1 and 15 kA per IEC 60947-2 at 230 V AC; 15 kA at 60 V DC per IEC 60947-2.

Where can I buy 5SY6520-6?

Sourced and quoted to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time.

What compliance documentation does Siemens provide for 5SY6520-6?

The breaker is certified to IEC/EN 60898-1 and IEC/EN 60947-2, plus UL 1077 and CSA C22.2 No. 235. It is halogen-free and silicon-free.

MPN
5SY6520-6