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Siemens 5SL6340-6BB — 3-Pole MCB (DIN Rail)

Siemens 5SL6340-6BB SENTRON MCB, 3P B 40A 6kA

MPN5SL6340-6BB

Siemens SENTRON 5SL6 series, 5SL6340-6BB miniature circuit breaker, 3-pole B-curve 40 A, 6 kA breaking capacity, 400 V AC, IP20.

Siemens 5SL6340-6BB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6340-6BB — Identification
ParameterValue
Design / model code5SL6
Brand nameSENTRON
Number of poles3
Suitability for operationResidential buildings/infrastructure
5SL6340-6BB — Protection
ParameterValue
Tripping characteristic (curve)B
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-26 kA
Overvoltage category3
IP protection classIP20, with connected conductors
5SL6340-6BB — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Rated frequency50 Hz
5SL6340-6BB — Mechanical
ParameterValue
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
SealableYes
5SL6340-6BB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturePeriodically +55°C, max. 95% humidity

Product details

Siemens 5SL6340-6BB — SENTRON 3-pole MCB, B-curve 40 A

Sealable design allows tamper-proofing after commissioning.

Electrical ratings and duty

Three-pole switching, no neutral pole. Rated for 400 V AC phase-to-phase, with a maximum of 440 V in multi-phase operation. DC rating is 60 V maximum — not a primary DC breaker, but usable on low-voltage DC control circuits within that limit. Overvoltage category 3, energy limiting class 3. Ambient temperature influence noted: periodically up to +55 °C with 95% humidity; the unit is halogen-free and silicon-free.

Frequently asked questions

Where can I buy 5SL6340-6BB and how do I get a price?

This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.

What is 5SL6340-6BB's listed depth?

The depth is 76 mm, with an installation depth of 70 mm behind the panel surface.

What is 5SL6340-6BB's listed width?

The width is 54 mm, which corresponds to 3 standard DIN-rail width units (18 mm each).

What compliance documentation does Siemens provide for 5SL6340-6BB?

The breaker carries ratings per EN 60898 and IEC 60947-2, and is designated for use in residential buildings and infrastructure. It is halogen-free and silicon-free. Specific RoHS, REACH, or UL declarations should be confirmed at quote time from the supplier.

MPN
5SL6340-6BB