The 5SL6606-6BB: The 6 kA breaking capacity at 400 V is the maximum fault current this MCB can safely interrupt — sized for residential and light commercial panelboards where the prospective short-circuit current stays under that threshold. The 3+N-pole configuration switches all three phases and switches the neutral, common in Italian and some European distribution boards where the neutral is switched alongside the phases.
Siemens 5SL6606-6BB MCB, 400 V 6kA, 3+N, B-curve, 6 A
MPN5SL6606-6BB
Siemens 5SL6 series miniature circuit breaker, 400 V 6kA, 3+N-pole, B-curve, 6 A, Italy version.
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
Product details
Frequently asked questions
What is 5SL6606-6BB used for?
It's a miniature circuit breaker for overcurrent and short-circuit protection in 400 V three-phase distribution boards, with a B-curve trip characteristic and 6 A rated current, switching all three phases plus neutral.
Where can I buy 5SL6606-6BB?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the breaking capacity of 5SL6606-6BB?
The breaking capacity is 6 kA at 400 V, which is the maximum fault current the breaker can safely interrupt.
MPN
5SL6606-6BB