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Siemens 5SY4620-5 — 4-Pole MCB (DIN Rail)

Siemens 5SY4620-5 SENTRON MCB, 4P, 20 A, Char. A, 10 kA

MPN5SY4620-5
Active

Siemens SENTRON 5SY4620-5, miniature circuit breaker, 4-pole (3P+N), 20 A, tripping characteristic A, 10 kA (EN 60898) / 20 kA (IEC 60947-2).

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

Specifications

5SY4620-5 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4620-5 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated current (In), AC20 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Voltage typeAC
5SY4620-5 — Protection
ParameterValue
Tripping characteristic (trip curve)A
Rated breaking capacity (Icn), per EN 6089810 kA
Rated breaking capacity, per IEC 60947-220 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingYes
Touch protectionYes
5SY4620-5 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Fastening / mounting methodQuick assembly system
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY4620-5 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

The Siemens SENTRON 5SY4620-5 is a 4-pole (3P+N) miniature circuit breaker rated 20 A at 35 °C with a tripping characteristic A. It breaks fault currents up to 10 kA per EN 60898 and 20 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2.

Tripping characteristic A means the breaker trips at 2–3× rated current — faster than B or C curves. This suits circuits with sensitive electronics or long cable runs where a quick trip protects semiconductor loads. The 20 A rating at 35 °C derates to 16.96 A at 60 °C, so a panel running warm needs a higher-rated breaker or forced cooling. The 4-pole (3P+N) configuration protects three phases and switches the neutral, common in TT or TN-S systems where neutral isolation is required.

Deployment context

The quick assembly system means it clips in without tools and can be ganged with other SENTRON units. Mounting position is any — vertical, horizontal, or upside-down — which simplifies panel layout.

Frequently asked questions

What is the breaking capacity of 5SY4620-5?

10 kA per EN 60898, 20 kA per IEC 60947-2, and 15 kA DC per IEC 60947-2.

What compliance documentation does Siemens provide for 5SY4620-5?

The part carries IEC 60947-2 and EN 60898 ratings, pollution degree 3, overvoltage category III, and IP20 with connected conductors. It is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations should be confirmed at quote time.

Where can I buy 5SY4620-5 and get current pricing?

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

MPN
5SY4620-5