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Siemens 5SY8116-8 — 1-Pole MCB (DIN Rail)

Siemens 5SY8116-8 SENTRON MCB, D Curve, 16 A, 1-Pole

MPN5SY8116-8
Active

Siemens SENTRON 5SY8116-8, miniature circuit breaker, 1-pole, D tripping characteristic, 16 A rated current at AC, 30 kA breaking capacity per IEC 60947-2, 1 MW width, IP20.

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

Specifications

5SY8116-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityMechanical engineering / industry
5SY8116-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Overvoltage categoryIII
5SY8116-8 — 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
5SY8116-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

It snaps onto DIN rail in one modular width unit (18 mm), so it fits tight panel layouts without crowding adjacent breakers.

Rated 16 A at AC, but that figure holds only up to 45 °C ambient. At 50 °C it derates to 15.5 A, and at 55 °C to 14.99 A (–). The 30 kA breaking capacity at 400 V AC (IEC 60947-2) is the figure that governs fault clearance in industrial distribution; the 5 kA rating under UL 1077 and CSA C22.2 No. 235 is the supplementary-protector limit for North American panels. For DC circuits, it breaks 15 kA per the same IEC standard. The housing is IP20 with conductors connected, so it needs an enclosure for washdown or outdoor use; it is not a standalone weatherproof device.

The breaker carries IEC 60947-2, UL 1077, and CSA C22.2 No. 235 approvals. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. The product is sealable — a lockable cover can be fitted to prevent unauthorized reset.

Frequently asked questions

What is the breaking capacity of 5SY8116-8?

30 kA at 400 V AC per IEC 60947-2, 15 kA at DC per the same standard, and 5 kA under UL 1077 / CSA C22.2 No. 235 for supplementary protection.

What is the closest functional second-source to 5SY8116-8?

The 5SY7210-7CC is a functional peer — same SENTRON family, same D-curve and 1-pole form factor. Verify the rated current and breaking capacity against your load before substituting, as the 5SY7210-7CC carries different amperage and interrupting ratings.

Will 5SY8116-8 drop into a panel specified for 5SY7210-7CC?

Both are 1-module-width SENTRON breakers on DIN rail, so the mechanical footprint is the same. No rewiring of the busbar or enclosure cutout is needed. Confirm the current rating and breaking capacity match your circuit protection requirements.

What compliance documentation does Siemens provide for 5SY8116-8?

The breaker is certified to IEC 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. Standard Siemens declarations of conformity (CE, UKCA) and material compliance (RoHS, REACH) are available on request.

Where can I buy 5SY8116-8 and how is it quoted?

Sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a live stock counter.

MPN
5SY8116-8