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Siemens 5SY6163-8 — 1-Pole MCB (DIN Rail)

Siemens 5SY6163-8 SENTRON MCB, 63 A 1P D Curve, 6/10 kA

MPN5SY6163-8

Siemens SENTRON 5SY6 series miniature circuit breaker, 1-pole, 63 A, D tripping characteristic, 400 V AC, 6 kA (EN 60898) / 10 kA (IEC 60947-2).

$45.48Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY6163-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityMechanical engineering / industry
5SY6163-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Rated value (EN 60898)6 kA
Overvoltage categoryIII
5SY6163-8 — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
SealableYes
5SY6163-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens 5SY6163-8 is a SENTRON miniature circuit breaker in the 5SY6 design, rated 63 A at 400 V AC across a single pole. Breaking capacity is 6 kA per EN 60898 (the residential/commercial standard) and 10 kA per IEC 60947-2 (the industrial standard), so it clears faults up to that level without welding contacts or cascading upstream. For DC applications it's rated 72 V max with a 15 kA breaking capacity under IEC 60947-2, and 5 kA under UL 1077 / CSA C22.2 No.235 for North American installs.

DIN-rail fit and terminal details

Depth is 76 mm, height 90 mm, width 18 mm — one 18 mm slot on the DIN rail. Installation depth 70 mm leaves room behind the rail for wiring. Terminals accept 0.75 to 35 mm² solid or stranded copper, with combined top and bottom terminals that also accept a busbar. Sealable, halogen-free, silicon-free construction. Ambient temperature range -25 to +55 °C operating; storage from -40 to +75 °C. Overvoltage category III — suitable for fixed-installation distribution boards downstream of the main panel.

Frequently asked questions

What is 5SY6163-8's breaking capacity in industrial vs residential standards?

6 kA under EN 60898 (residential/commercial standard) and 10 kA under IEC 60947-2 (industrial standard). For DC circuits it's rated 15 kA at 72 V per IEC 60947-2.

Where can I buy 5SY6163-8 and how is it quoted?

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

Will 5SY6163-8 drop into a panel specified around 5SY4140-7 without rewiring?

Both are 1-pole SENTRON MCBs on an 18 mm DIN-rail footprint with the same terminal wire range (0.75–35 mm² solid/stranded). The 5SY6163-8 is rated 63 A D curve; the 5SY4140-7 is a different rating and curve. Mechanical fit is identical — no rewiring needed for the mounting, but verify the trip curve and amp rating match the circuit design.

What compliance documentation does Siemens provide for 5SY6163-8?

The part carries approvals per EN 60898, IEC 60947-2, UL 1077, and CSA C22.2 No.235. It is halogen-free and silicon-free. Standard Siemens declarations (CE, UKCA, RoHS, REACH) are available on request for the 5SY6 series.

MPN
5SY6163-8