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Siemens 5SL3216-6MB — 2-Pole MCB (DIN Rail)

Siemens 5SL3216-6MB SENTRON MCB, 2-pole B 16A 4.5kA

MPN5SL3216-6MB
Active

Siemens SENTRON 5SL3 series, 5SL3216-6MB miniature circuit breaker, 2-pole, B-curve, 16 A, 4.5 kA breaking capacity per EN 60898, 400 V AC, 2 width units, IP20 with connected conductors.

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

Specifications

5SL3216-6MB — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentResidential buildings/infrastructure
5SL3216-6MB — Electrical
ParameterValue
Number of poles2
5SL3216-6MB — Protection
ParameterValue
Tripping characteristic classB
Overvoltage category3
5SL3216-6MB — Mechanical
ParameterValue
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Protection degree (IP)IP20, with connected conductors

Product details

What it is and what the ratings mean

The Siemens 5SL3216-6MB is a SENTRON miniature circuit breaker (MCB) from the 5SL3 design line, built for residential and infrastructure branch-circuit protection. Two poles, B-curve, rated 16 A at 400 V AC with a 4.5 kA breaking capacity per EN 60898 — that's the standard for overcurrent protection in final circuits up to the rated short-circuit level. The B-curve trips between 3 and 5 times rated current, so it's sized for resistive and general-purpose loads where inrush is modest; a C-curve would be the call for motor or transformer circuits.

Mounting and integration

Snaps onto DIN rail, occupies 2 width units (36 mm). Mounting position is unrestricted — any orientation works. Installation depth is 70 mm behind the panel, overall depth 76 mm. Conductor range: 0.75 to 25 mm² solid or stranded, terminated with screw terminals torqued to 2.5 to 3 N·m. Sealable, touch-protected terminals. IP20 with conductors connected — standard for enclosed distribution boards.

Frequently asked questions

What is the breaking capacity of 5SL3216-6MB?

4.5 kA rated per EN 60898 at 400 V AC, which certifies it for short-circuit interruption in final circuits up to that level.

What wire sizes does 5SL3216-6MB accept?

Solid or stranded conductors from 0.75 mm² up to 25 mm², terminated with screw terminals at 2.5 to 3 N·m.

Where can I buy 5SL3216-6MB and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

Will 5SL3216-6MB drop into a panel that was specified around 5SL3120-6MB?

Both are 2-pole, 2-width-unit SENTRON 5SL3 MCBs with the same footprint and terminal range. The 5SL3120-6MB is a 20 A B-curve variant; the 5SL3216-6MB is 16 A. Panel cutout and wiring are identical — no rewiring needed, just verify the ampacity matches the circuit.

What compliance documentation does Siemens provide for 5SL3216-6MB?

The part carries EN 60898 certification for breaking capacity. It is halogen-free and silicon-free. The manufacturer typically supplies RoHS and REACH declarations upon request through the supply channel.

MPN
5SL3216-6MB