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Siemens 5SY3006-6KL — 1-Pole MCB (DIN Rail)

Siemens 5SY3006-6KL SENTRON MCB, 6 A, B-Curve, 1P+N, 4.5 kA

MPN5SY3006-6KL

Siemens SENTRON miniature circuit breaker, 5SY3006-6KL, 1P+N, B-curve, 6 A rated current, 4.5 kA breaking capacity at 230 V AC, 18 mm width, standard rail mount.

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

Specifications

5SY3006-6KL — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SY3006-6KL — Electrical & Protection
ParameterValue
Tripping characteristic classB
Rated value (EN 60898)4.5 kA
Overvoltage categoryIII
5SY3006-6KL — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topNo
Combined terminal, bottomNo
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.17.7 lbf·in
Torque, max.22.1 lbf·in
SealableYes
5SY3006-6KL — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

Siemens 5SY3006-6KL SENTRON MCB – 6 A, B-Curve, 1P+N

The Siemens 5SY3006-6KL is a 1P+N miniature circuit breaker from the SENTRON family, rated at 6 A with a B tripping characteristic and a 4.5 kA breaking capacity per EN 60898 at 230 V AC. The 1P+N configuration switches both the phase and the neutral conductor, with the neutral pole switching but not providing overcurrent protection — a standard arrangement for single-phase final circuits where disconnection of both conductors is required. It occupies a single 18 mm width unit on standard rail, so it fits tightly in a crowded distribution board.

Mounting position any, so it can be oriented vertically or horizontally in the enclosure without derating. Terminal torque spec: 17.7 to 22.1 lbf·in. Touch protection is a product feature.

In a coordinated panel, verify that the upstream protective device has adequate selectivity margin — a B-curve 6 A breaker is typically downstream of a higher-rated C-curve or D-curve MCB or an RCD.

Frequently asked questions

Where can I buy 5SY3006-6KL and how do I get a price?

The 5SY3006-6KL is sourced to order through independent distribution. Submit an RFQ for current availability and pricing confirmed at quote time.

What is the difference between 5SY3006-6KL and the higher-rated 5SY6040-6?

The 5SY6040-6 is the same SENTRON 1P+N B-curve design but rated at 40 A with a 6 kA breaking capacity. The 5SY3006-6KL at 6 A and 4.5 kA will not drop in as a replacement for a 40 A circuit — the conductor sizing and load must match. For the same 6 A rating, the 5SY6006-7 offers a C-curve and 6 kA breaking capacity, which may be preferred for circuits with moderate inrush.

What are the key specifications of the 5SY3006-6KL?

Rated current 6 A, B tripping characteristic, 1P+N poles, breaking capacity 4.5 kA per EN 60898 at 230 V AC, width 18 mm, depth 76 mm, standard rail mount, IP20.

Will 5SY3006-6KL fit in a panel designed for 5SY6040-6?

Yes — both share the same 18 mm width, 76 mm depth, and standard rail mounting. The physical footprint is identical; only the current rating and breaking capacity differ. No rewiring of the busbar or enclosure is needed for fit.

MPN
5SY3006-6KL