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Siemens 5SY7140-7CC — 1-Pole MCB (DIN Rail)

Siemens 5SY7140-7CC SENTRON MCB, 1P, 40 A, C-Curve, 25 kA

MPN5SY7140-7CC

Siemens SENTRON 5SY7 series, miniature circuit breaker (MCB), 1-pole, 40 A rated current, C tripping characteristic, 25 kA breaking capacity at 400 V AC per IEC 60947-2, 18 mm width, IP20.

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

Specifications

5SY7140-7CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityMechanical engineering / industry
5SY7140-7CC — Electrical & Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY7140-7CC — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY7140-7CC — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Mounts in any position, which helps when you're shoehorning it into a crowded enclosure. IP20 with conductors connected, so it's panel-internal only; no washdown exposure. Terminal is combined top and bottom, touch-protected, and accepts the standard screwdriver for panel wiring.

UL 1077 and CSA C22.2 No. 235 recognized at 5 kA, so it's accepted in North American panels as a supplementary protector. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — tough enough for the route.

Frequently asked questions

Where can I buy 5SY7140-7CC and get current pricing?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the 5SY7140-7CC breaking capacity at 400 V AC?

25 kA per IEC 60947-2 at 400 V AC. Under UL 1077 it's rated 5 kA.

Will 5SY7140-7CC fit in a panel designed for 5SY7210-7CC?

Yes, both are 1-pole, 18 mm wide, same SENTRON 5SY7 footprint. The 5SY7210-7CC is a 10 A unit; the 5SY7140-7CC is 40 A. Same mechanical envelope, no rewiring needed for the busbar or DIN rail.

MPN
5SY7140-7CC