The Siemens 5SL6540-7MB is a 1+N-pole miniature circuit breaker rated 230 V with a 6 kA breaking capacity, C-curve trip characteristic, and 40 A rated current. It protects final circuits against overload and short-circuit in residential and commercial distribution boards, snapping onto standard DIN rail.

Siemens 5SL6540-7MB Miniature Circuit Breaker, 230V 6kA, 1+N
MPN5SL6540-7MB
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Siemens Basic Devices series miniature circuit breaker, 5SL6540-7MB, 230V 6kA, 1+N-pole, C-curve, 40A.
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
| Parameter | Value |
|---|---|
| Group code | P310 |
| Product group | 3803 |
| Product class | B: return restricted, please contact your Siemens partner/contact |
| Series | Basic Devices |
| Export control regulations | AL : N / ECCN : N |
| Compliance with the substance restrictions according to RoHS directive | Since: 13-10-73 |
Product details
Frequently asked questions
What is 5SL6540-7MB's group code and product group?
The group code is P310 and the product group is 3803.
MPN
5SL6540-7MB