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Siemens 5SL3140-6 — 1-Pole MCB (DIN Rail)

Siemens 5SL3140-6 SENTRON MCB, 1P B-Curve 40A 4.5kA

MPN5SL3140-6

Siemens SENTRON 5SL3 series, miniature circuit breaker, 1-pole B-curve, 40 A rated current, 4.5 kA breaking capacity, 18 mm width, 76 mm depth.

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Siemens 5SL3140-6 datasheet (PDF)

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

Specifications

5SL3140-6 — Identification
Parameter	Value
Product designation	Miniature circuit breaker
Brand name	SENTRON
Number of poles	1
Application suitability	Residential buildings/infrastructure

5SL3140-6 — Electrical & Protection
Parameter	Value
Tripping characteristic class	B
Rated value (EN 60898)	4.5 kA
Overvoltage category	3

5SL3140-6 — Mounting & Connection
Parameter	Value
Mounting position	any
Width	18 mm
Height	90 mm
Depth	76 mm
Installation depth	70 mm
Sealable	Yes

5SL3140-6 — Environmental
Parameter	Value
IP protection class	IP20, with connected conductors
Halogen-free	Yes
Silicone-free	Yes

Product details

Single-pole (1P) construction with 18 mm width per DIN rail module means it occupies one standard unit in the enclosure.

Snap-on DIN rail mounting, any position. Screw-type terminals with 2.5 to 3 N·m tightening torque.

Rated for ambient temperature -25 to +45 °C, with periodic exposure to +55 °C and up to 95% humidity. Storage range -40 to +75 °C. Overvoltage category 3, energy limiting class 3. Rated AC voltage 400 V (single-phase), maximum 440 V multi-phase. DC rated maximum 60 V — not a primary DC breaker, but can handle low-voltage DC circuits within that limit.