Skip to main content
Log in
Siemens 5SL6520-7MB — 1-Pole MCB (DIN Rail)

Siemens 5SL6520-7MB SENTRON MCB, 1P+N, C-curve, 20 A, 6 kA

MPN5SL6520-7MB
Active

Siemens SENTRON 5SL6 series, miniature circuit breaker, 1P+N, C-curve, 20 A, 6 kA, 230 V AC, 2 modules wide.

Siemens 5SL6520-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6520-7MB — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Application suitabilityResidential buildings/infrastructure
5SL6520-7MB — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)6 kA
Overvoltage category3
5SL6520-7MB — Mounting & Connection
ParameterValue
Mounting positionany
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
5SL6520-7MB — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2

Product details

The Siemens 5SL6520-7MB is a SENTRON 5SL6 miniature circuit breaker — 1P+N, C-curve, 20 A rated at 230 V AC, with a 6 kA breaking capacity certified to both EN 60898 and IEC 60947-2.

Ratings in practice

Rated 20 A at 230 V AC, single-phase, and the neutral pole switches with the phase (1P+N) — the neutral isn't just a pass-through, it's a switched pole, which matters for full disconnection in single-phase final circuits. Also carries a DC rating of 72 V maximum, so it can be used on DC control circuits at that voltage level. Mechanical life is 20 000 switching cycles typical — not a daily-switch contactor, but fine for overcurrent protection where it trips infrequently.

Frequently asked questions

Where can I buy 5SL6520-7MB and how do I get a price?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send an RFQ with your quantity and target delivery window.

What is 5SL6520-7MB's listed depth (76 mm) on this component line?

The overall depth is 76 mm, with an installation depth of 70 mm. That 6 mm difference is the front projection of the toggle and terminal screws. It fits standard 80 mm deep enclosures with room for wiring.

What is 5SL6520-7MB's listed width (36 mm) on this component line?

Width is 36 mm, which equals 2 width units (18 mm per module) on a standard DIN-rail distribution board. That's the standard footprint for a 1P+N MCB in the SENTRON system.

Will 5SL6520-7MB drop into a panel that was specified around 5SL6563-7BB without rewiring?

Both are 5SL6 series breakers with the same mechanical footprint (2 width units, same depth, same DIN-rail clip), so they are mechanically interchangeable. However, the electrical ratings differ — verify that the 5SL6563-7BB's current rating, curve, and breaking capacity match your circuit requirements before swapping. The wiring connections (phase and neutral terminals) are in the same positions.

What compliance documentation does this brand provide for 5SL6520-7MB (RoHS, REACH, UL, IEC)?

This breaker carries EN 60898 and IEC 60947-2 ratings for breaking capacity. Siemens typically provides CE declaration of conformity, RoHS and REACH declarations, and UL/CSA certification files for the SENTRON 5SL6 series. The halogen-free and silicon-free product features are documented on the product label and in the Siemens declaration database.

MPN
5SL6520-7MB