Multi-phase and single-phase operation both rated at 440 V AC, so it handles line-to-line faults on 400 V systems with headroom. DC rating max 72 V — usable for DC control circuits at that voltage, but not a primary DC breaker. Overvoltage category III means it's rated for fixed-installation distribution boards, not just final circuits. Energy limiting class 3 indicates fast arc extinction, limiting let-through energy to downstream equipment. Mechanical service life typical 10 000 switching cycles. The breaker is sealable — a lockable cover or tag-out provision can be fitted for lockout/tagout compliance. Touch protection included.
Siemens SENTRON 5SY4310-7CC11 MCB, 3P C10A 10kA 400V
MPN5SY4310-7CC11
Siemens SENTRON series, miniature circuit breaker, 3-pole, C-curve, 10 A rated, 10 kA breaking capacity (EN 60898), 400 V AC, 54 x 76 x 90 mm, IP20.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
Product details
Frequently asked questions
What is the breaking capacity of 5SY4310-7CC11?
10 kA per EN 60898 at 400 V AC. That's the standard breaking capacity for sub-distribution in industrial panels.
What does the C-curve mean on this MCB?
C-curve (5–10× In) means the magnetic trip activates at 50–100 A for this 10 A breaker. It's designed for moderate inrush loads like contactors, small motors, and lighting — not for purely resistive loads (B-curve) or high-inrush transformers (D-curve).
Can 5SY4310-7CC11 be used in DC circuits?
Yes, but limited to 72 V DC maximum. It's primarily an AC breaker rated 400/440 V AC; the DC rating is for low-voltage control circuits only.
Where can I buy 5SY4310-7CC11?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time — submit an RFQ for a firm commitment.
MPN
5SY4310-7CC11