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Siemens 5SQ2170-2YA08 — 1-Pole MCB (DIN Rail)

SENTRON 5SQ2170-2YA08 Miniature Circuit Breaker, 1P C 8 A, 3

MPN5SQ2170-2YA08

SENTRON 5SQ2170-2YA08, 1-pole miniature circuit breaker, C-curve 8 A, 3 kA per EN 60898, 240 V AC, IP20, 55 mm depth.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SQ2170-2YA08 — Identification
ParameterValue
Brand nameSENTRON
Number of poles1
5SQ2170-2YA08 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)3 kA
Overvoltage category3
5SQ2170-2YA08 — Mounting & Connection
ParameterValue
Installation depth55 mm
5SQ2170-2YA08 — Environmental
ParameterValue
IP protection classIP20
5SQ2170-2YA08 — Other specifications
ParameterValue
Type of voltageAC/DC
Energy limiting class3
Number of width units1
Number of poles (Note)1P
Circuit-breaker (Design)5SQ
Current (at AC)8 A
Supply voltage (at AC)240 V
Supply voltage frequency50 Hz
Product function (neutral conductor switching)No

Product details

The SENTRON 5SQ2170-2YA08 is a 1-pole miniature circuit breaker with a C tripping characteristic, rated 8 A at 240 V AC and a 3 kA breaking capacity per EN 60898. The C-curve (5–10× In) makes it suitable for moderate inrush loads — think lighting banks, small transformers, or motor control circuits where the start-up surge exceeds a B-curve's tolerance but doesn't need the D-curve's high hold.

Rated 8 A at 240 V AC, 50 Hz, with a 3 kA breaking capacity per EN 60898. The AC/DC voltage type means the same unit can be used on DC circuits up to the rated voltage, though the DC breaking capacity isn't separately stated here — verify for pure DC applications.

The 55 mm installation depth leaves clearance behind most standard enclosure backplates. No neutral conductor switching; this pole protects the line only.

Frequently asked questions

Where can I buy 5SQ2170-2YA08 and get a price?

The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer.

What is the number of poles on 5SQ2170-2YA08?

It is a 1-pole (1P) miniature circuit breaker, protecting a single line conductor with no neutral switching.

What type of voltage does 5SQ2170-2YA08 accept?

It accepts both AC and DC supply voltage, rated 240 V AC at 50 Hz.

Will 5SQ2170-2YA08 drop into a panel specified for 5SY4140-7?

Both are 1-pole SENTRON MCBs on 1 width unit (18 mm) with the same DIN-rail footprint, so the mechanical fit is identical. The key difference is breaking capacity: 5SQ2170-2YA08 is rated 3 kA per EN 60898, while 5SY4140-7 is rated 10 kA per the same standard. If the panel's available fault current exceeds 3 kA, the 5SY4140-7 or a higher-rated breaker is required.

What compliance documentation is available for 5SQ2170-2YA08?

The breaker is designed to EN 60898 and carries overvoltage category 3 and energy limiting class 3 ratings. Specific RoHS, REACH, UL, or IEC declarations should be requested at quote time — the evidence does not list individual cert marks for this order code.

MPN
5SQ2170-2YA08