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Siemens 5SY6020-6 — 1-Pole MCB (DIN Rail)

Siemens 5SY6020-6 SENTRON MCB, B 20 A, 1P+N, 6 kA

MPN5SY6020-6

Siemens SENTRON 5SY6020-6 miniature circuit breaker, B characteristic, 20 A rated, 1P+N, 6 kA breaking capacity at 230 V AC, 18 mm width, DIN-rail mount.

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

Specifications

5SY6020-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SY6020-6 — Electrical & Protection
ParameterValue
Tripping characteristic classB
Rated value (EN 60898)6 kA
Overvoltage categoryIII
5SY6020-6 — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topNo
Combined terminal, bottomNo
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.24 V
SealableYes
5SY6020-6 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

Terminals accept solid or stranded conductors from 0.75 to 16 mm², with a recommended tightening torque of 2 to 2.5 N·m (17.7 to 22.1 lbf·in). That range covers most branch-circuit wiring from 1.5 mm² lighting feeds up to 6 mm² or 10 mm² for higher-current loads. The screw terminals are touch-protected per the product feature, and the breaker is sealable — useful for installations where tamper-proofing or metering seals are required. Storage temperature is broader (-40 to +75 °C), so spares on the shelf are fine.

Deployment context

Snap-on mounting to standard DIN rail (EN 60715) — installs in any position, no orientation restrictions. The 18 mm width (one module) means it slots into a standard distribution board or sub-panel alongside other SENTRON breakers, RCDs, and accessories.

Frequently asked questions

Where can I buy 5SY6020-6 and get a price?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the depth of 5SY6020-6?

The depth is 76 mm, with an installation depth of 70 mm. Height is 90 mm, width 18 mm (one width unit).

What wire sizes does the 5SY6020-6 terminal accept?

Solid or stranded conductors from 0.75 mm² up to 16 mm². Tightening torque is 2 to 2.5 N·m (17.7 to 22.1 lbf·in) with screw-type terminals.

Does 5SY6020-6 drop into a panel specified for 5SY6020-7KL?

Both are 1P+N SENTRON MCBs on the same 18 mm DIN-rail footprint, so the mechanical fit is identical. The difference is the tripping characteristic: 5SY6020-6 is B-curve (20 A), while 5SY6020-7KL is a different curve/rating. Check the existing breaker's rating and curve before swapping — the footprint is the same, but the protection coordination may differ.

MPN
5SY6020-6