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5SY8363-7
Siemens 5SY8363-7 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 5SY8363-7 SENTRON miniature circuit breaker provides dependable circuit protection for industrial and mechanical engineering applications. This three-pole device has a rated current of 63 A, a C tripping characteristic and a rated operating voltage of 400 V AC at 50/60 Hz. It offers a 25 kA switching capacity in accordance with EN 60947-2, making it suitable for installations with high prospective short-circuit currents.
Designed for quick assembly, the 5SY8363-7 occupies three modular width units and can be mounted in any position. Combined terminals at the top and bottom accept solid or stranded conductors from 0.75 to 35 mm², while finely stranded conductors with end processing are supported up to 25 mm². The breaker is touch-protected, sealable, halogen-free and compatible with supplementary devices. Its compact 90 × 54 × 76 mm enclosure has an installation depth of 70 mm and an IP20 protection rating when conductors are connected.
Designed for quick assembly, the 5SY8363-7 occupies three modular width units and can be mounted in any position. Combined terminals at the top and bottom accept solid or stranded conductors from 0.75 to 35 mm², while finely stranded conductors with end processing are supported up to 25 mm². The breaker is touch-protected, sealable, halogen-free and compatible with supplementary devices. Its compact 90 × 54 × 76 mm enclosure has an installation depth of 70 mm and an IP20 protection rating when conductors are connected.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | 5SY8363-7 |
| Alternative Part Number | 5SY83637 |
| Product Range | SENTRON |
| Product Type | Miniature circuit breaker |
| Design Series | 5SY8 |
| Part Description | Three-pole SENTRON miniature circuit breaker with a 63 A rated current, C tripping characteristic and 25 kA breaking capacity for industrial circuit protection |
| Number of Poles | 3P |
| Rated Current | 63 A at 45 °C |
| Tripping Characteristic | Type C |
| Rated AC Voltage | 400 V |
| Single-Phase Rated Voltage | 230 V AC |
| Rated Frequency | 50/60 Hz |
| Maximum DC Operating Voltage | 72 V |
| Rated Insulation Voltage | 440 V AC |
| Breaking Capacity | 25 kA according to IEC/EN 60947-2 |
| DC Breaking Capacity | 15 kA according to IEC/EN 60947-2 |
| UL/CSA Short-Circuit Capacity | 5 kA |
| Applicable Standard | IEC/EN 60947-2 |
| Protection Rating | IP20 with conductors connected |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Mechanical Service Life | Typically 10,000 operating cycles |
| Power Loss | 6 W per pole at rated current |
| Mounting Method | Quick assembly system |
| Mounting Position | Any |
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation Depth | 70 mm |
| Modular Width | 3 width units |
| Solid Conductor Capacity | 0.75–35 mm² |
| Stranded Conductor Capacity | 0.75–35 mm² |
| Finely Stranded Conductor Capacity | 0.75–25 mm² with end treatment |
| AWG Conductor Range | AWG 18–4 |
| Terminal Tightening Torque | 2.5–3.5 N·m |
| Operating Temperature | -25 to +55 °C |
| Storage Temperature | -40 to +75 °C |
| Terminal Configuration | Combined terminals at top and bottom |
| Neutral Switching | No |
| Supplementary Devices | Compatible with installable supplementary devices |
| Material Properties | Halogen-free and silicon-free |
| Additional Features | Touch-protected and sealable |
| Typical Application | Circuit protection in mechanical engineering and industrial electrical installations |
| Commodity Code | 853620 |
What type of electrical device is this?
It is a Siemens SENTRON miniature circuit breaker designed to protect industrial electrical circuits against overloads and short circuits.
What is the rated current?
The circuit breaker has a rated operational current of 63 A at 45 °C.
How does ambient temperature affect the current rating?
The rated operational current is 63 A at 45 °C, 61.42 A at 50 °C and 59.79 A at 55 °C.
How many poles does the circuit breaker have?
It is a three-pole circuit breaker, allowing simultaneous protection and isolation of three conductors in a three-phase circuit.
What tripping characteristic does it use?
It has a Type C tripping characteristic, making it suitable for circuits with moderate inrush currents, including many industrial and mechanical-engineering loads.
What is the rated AC voltage?
The rated AC supply voltage is 400 V, with a rated frequency range of 50/60 Hz.
What is its short-circuit breaking capacity?
The 5SY8363-7 has a rated breaking capacity of 25 kA under IEC/EN 60947-2. Its rated DC breaking capacity under the same standard is 15 kA.
Can it be used with DC circuits?
The available technical data specifies a maximum rated DC operating voltage of 72 V and a DC breaking capacity of 15 kA under IEC 60947-2. Circuit configuration and application requirements should be checked before use.
What are its physical dimensions?
The unit measures approximately 90 mm high, 54 mm wide and 76 mm deep. Its installation depth is 70 mm, and it occupies three modular width units.
How is the device mounted?
It uses a quick-assembly mounting system and may be installed in any mounting position.
What conductor sizes can be connected?
Solid and stranded conductors from 0.75 mm² to 35 mm² can be connected. Finely stranded conductors with end preparation can range from 0.75 mm² to 25 mm².
What terminal tightening torque is required?
The specified tightening torque for the screw terminals is between 2.5 N·m and 3.5 N·m.
What degree of ingress protection does it provide?
The circuit breaker is rated IP20 when the conductors are connected.
What temperatures can it operate in?
Its specified operating temperature range is -25 °C to 55 °C. The storage temperature range is -40 °C to 75 °C.
What is the expected mechanical service life?
The typical mechanical service life is 10,000 operating cycles.
Does it switch a neutral conductor?
No. This is a three-pole model without neutral-conductor switching.
Can supplementary devices be fitted?
Yes. The product is designed to accept compatible supplementary devices for expanded control or signalling functions.
Is the enclosure material halogen-free and silicon-free?
Yes. The product data identifies the circuit breaker as both halogen-free and silicon-free. It is also sealable.
- Protecting three-phase industrial circuits from overloads and short circuits
- Safeguarding machinery power supplies in manufacturing environments
- Providing circuit protection within control panels and distribution boards
- Isolating electrical circuits during planned maintenance
- Protecting motors, pumps, compressors and ventilation equipment
- Supporting high-fault-current applications requiring a 25 kA breaking capacity
- Protecting 400 V AC electrical installations
- Providing C-curve protection for circuits with moderate inrush currents
- Protecting power distribution circuits in commercial and industrial buildings
- Integrating into DIN-rail electrical enclosures and switchgear assemblies
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
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Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
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Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
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Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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Lessle Smith
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Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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