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.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Number of poles | 3 |
| Suitability for operation | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic (curve) | C |
| Breaking capacity per EN 60898 | 10 kA |
| Overvoltage category | III |
| IP protection class | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Rated current (AC) | 400 V |
| Rated voltage (AC, multi-phase) | 440 V |
| Rated frequency | 50/60 Hz |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Terminal tightening torque, max. | 75 °C |
| Terminal tightening torque, min. | -40 °C |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of surrounding temperature | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
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