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Siemens 5SY4620-7 — 4-Pole MCB (DIN Rail)

Siemens 5SY4620-7 SENTRON MCB, 4P C-curve 20A 10kA

MPN5SY4620-7

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Siemens SENTRON miniature circuit breaker, 5SY4620-7, 4-pole (3P+N), C-curve, 20 A rated, 10 kA (EN 60898) / 20 kA (IEC 60947-2) breaking capacity, IP20, current production.

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

Specifications

5SY4620-7 — Identification
Parameter	Value
Brand name	SENTRON
Application suitability	Mechanical engineering / industry

5SY4620-7 — Ratings
Parameter	Value
Number of poles	4
Pole configuration	3P+N
Rated current (In), AC	20 A
Rated voltage, AC (multi-phase)	440 V
Rated voltage, AC (single-phase)	440 V

5SY4620-7 — Protection
Parameter	Value
Tripping characteristic (trip curve)	C
Rated breaking capacity (Icn), per EN 60898	10 kA
Rated breaking capacity, per IEC 60947-2	20 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)	5 kA
Energy limitation class	3
Overvoltage category	III
Pollution degree	3
Degree of protection (IP)	IP20, with connected conductors
Touch protection	Yes

5SY4620-7 — Mechanical
Parameter	Value
Width in modular units	4
Width	72 mm
Height	90 mm
Depth	76 mm
Installation depth	70 mm
Fastening / mounting method	Quick assembly system
Mounting position	any
Combined terminal, top	Yes
Combined terminal, bottom	Yes
Tightening torque, max.	75 °C
Tightening torque, min.	-40 °C
Sealable	Yes

5SY4620-7 — Environmental
Parameter	Value
Halogen-free	Yes
Silicone-free	Yes
Influence of ambient temperature (derating)	max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

5SY4620-7 — Performance
Parameter	Value
Mechanical service life (switching cycles, typ.)	10 000

Product details

Siemens 5SY4620-7 SENTRON 4P C-curve MCB

Breaking capacity is 10 kA per EN 60898 and 20 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2. The C-curve means it trips at 5-10x rated current — standard for general-purpose distribution and moderate motor inrush. Rated current derates with ambient temperature: 20 A at 35 °C, 18.54 A at 45 °C, 18.04 A at 50 °C, 17.5 A at 55 °C, 16.96 A at 60 °C. Use the 45 °C or 50 °C figure when the panel runs warm.

Snap-on mounting to DIN rail, any position. IP20 protection with connected conductors. Degree of pollution 3, overvoltage category III. Sealable, halogen-free, silicon-free. Touch protection fitted. Ambient operating range -40 °C to 75 °C, with humidity limits: max 95% up to 55 °C, max 55% up to 70 °C, max 35% at 75 °C. Suitability marked for mechanical engineering / industry.