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Siemens 5SY8110-8 — 1-Pole MCB (DIN Rail)

Siemens 5SY8110-8 SENTRON MCB, D-Curve, 1-Pole, 10 A, 40 kA

MPN5SY8110-8
Active

Siemens SENTRON 5SY8110-8 miniature circuit breaker, 1-pole, D-curve, 10 A rated at 45 °C, 40 kA breaking capacity at 400 V AC, 1 MW width.

Siemens 5SY8110-8 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY8110-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityMechanical engineering / industry
5SY8110-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Overvoltage categoryIII
5SY8110-8 — 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
5SY8110-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

What this MCB does and where it fits

The Siemens 5SY8110-8 is a 1-pole SENTRON miniature circuit breaker with a D tripping characteristic, rated 10 A at 45 °C and 400 V AC. The 1 MW width (18 mm) saves rail space in a crowded panel. It also carries a 15 kA DC breaking capacity per IEC 60947-2 and a 5 kA rating per UL 1077 and CSA C22.2 No.235, so it's accepted in North American control-panel applications as a supplementary protector. The vibration resistance per IEC 60068-2-6 (±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz) means it shrugs off the shaking you get on crusher floors or near vibrating screens — built for the pit and the mill.

The combined terminal at top and bottom accepts both busbar and conductor, and the touch-protection feature meets finger-safe requirements.

Frequently asked questions

Where can I buy the 5SY8110-8 and get a price?

The 5SY8110-8 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What are the key ratings of the 5SY8110-8?

It is a 1-pole D-curve MCB rated 10 A at 45 °C, 400 V AC, with a 40 kA breaking capacity at 400 V AC per IEC 60947-2, 15 kA DC, and 5 kA per UL 1077/CSA C22.2 No.235.

What compliance documentation does Siemens provide for the 5SY8110-8?

The breaker carries IEC 60947-2, UL 1077, and CSA C22.2 No.235 ratings. It is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from Siemens documentation.

MPN
5SY8110-8