Need more information?
Siemens 5SY4663-8
Miniature Circuit Breaker, 3+N Pole, D, 63A, 70mm Depth
Product Description
Introducing the SUPPLEMENTARY PROTECTOR, a high-quality, UL1077 rated miniature circuit breaker designed for optimal protection. This innovative device is equipped with 3 + N poles, ensuring reliable operation in diverse applications. With a rating of 63 Amps and a voltage of 480 VAC, it offers robust performance and safety.
The SUPPLEMENTARY PROTECTOR features a trip characteristic curve D, providing precise current interruption for enhanced protection. Its compact dimensions of 72mm width and 70mm depth make it suitable for installation in various environments. The device is backed by the UL File E116386 in Vol. 1 Sec. 2, ensuring compliance with industry standards.
This miniature circuit breaker is a reliable choice for applications requiring high current interruption capabilities. Its 3 + N poles and D trip characteristic curve make it an ideal solution for protecting electrical systems from overcurrent conditions.
Need more information?
Offer details
- Offer from:
Trusted supplier — Germany, member since 2024 - Availability:
- 24 pcs.Updated at: 15-09-2026In-Stock
- Warranty:
- 24 months
- Condition:
- New Surplus
Specifications
- Brand
- Siemens
- Voltage type
- AC
- Rated current
- 63 A
- Pollution degree
- 3
- Rated voltage
- 400 V
- Explosion-proof
- Over voltage category
- 3
Available Offers
(3)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition New Surplus | Availability 24 pcs. Updated at: 15-09-2026In-Stock | SupplierGermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Factory Sealed | Availability On requestLead time: 30 days | SupplierGermanyTrusted supplier — member since 2024 | Warranty Not specified | |
 | Condition New Factory Sealed | Availability On requestLead time to be confirmed | Supplier ItalyTrusted supplier — member since 2021, 10–19 employees | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 5SY4663-8, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 15-09-2026
Market insights for 5SY4663-8
Get real-time analytics and market data for 5SY4663-8 and other products from the Circuit Breakers & Fuses category to optimize your purchasing decisions
- Real-time stock availability data from 700 MRO distributors in Europe and USA
- Price analysis by condition (new, used, refurbished) with market median prices
- Critical component availability monitoring to prevent production downtime