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ABB S803S-K50 MCB 3P K50 50A
Model: S803S-K50P/N: ABB.S803SK50
4-hour response · Pricing in SAR · Delivery across all KSA regions
ABB S803S-K50 MCB 3P K50 50A
The ABB S803S-K50 is a high-performance miniature circuit breaker (MCB) (MCB 3P K50 50A) engineered by ABB, the global leader in electrification and automation technology and the most trusted electrical brand across Saudi Arabia's industrial sector. ABB S800 high-performance miniature circuit breaker, S803S 3-pole, K-curve rated 50 A, with high breaking capacity to IEC 60947-2 for demanding industrial distribution. Supplied as a genuine, fully type-tested ABB product by Razz Middle East, the S803S-K50 is held in local stock for fast delivery to industrial, commercial and infrastructure projects throughout the Kingdom of Saudi Arabia, from the Eastern Province energy corridor to the NEOM and Red Sea giga-projects.
Technical Overview
At the core of the S803S-K50 is ABB's proven high-performance miniature circuit breaker (MCB) platform, refined over decades of deployment in the world's most demanding industries. ABB S800 high-performance miniature circuit breaker, S803S 3-pole, K-curve rated 50 A, with high breaking capacity to IEC 60947-2 for demanding industrial distribution. The design emphasizes long electrical and mechanical endurance, consistent calibration and full coordination with the wider ABB low-voltage range, so a single product family can be standardized across an entire facility. Headline parameters are: Rated current: 50 A; Poles: 3; Tripping characteristic: K-curve; Breaking capacity (Icu): up to 50 kA; Standard: IEC 60947-2. Compared with generic alternatives, the S803S-K50 offers tighter manufacturing tolerances, tropicalized internals for high-humidity and salt-laden coastal air, and a documented type-test pedigree to international standards — the difference between a component that merely fits the schematic and one that survives years of continuous duty in a Saudi plant.
Performance & Specifications
Key performance figures for the S803S-K50 are drawn directly from the ABB datasheet: Rated current: 50 A; Poles: 3; Tripping characteristic: K-curve; Breaking capacity (Icu): up to 50 kA; Standard: IEC 60947-2. These ratings are validated by type testing and hold across the wide -25 to +60 °C ambient range, high humidity and dust loading typical of Saudi Arabian industrial sites. The product carries the relevant international certifications (CE, cULus, RMO, marine type approvals), ensuring acceptance under SASO import requirements and Saudi Aramco engineering standards (SAES). Full datasheets, type-test certificates and dimensional drawings are available from Razz Middle East on request to support engineering, approval and procurement.
Applications in Saudi Arabia
Across the Kingdom the ABB S803S-K50 is specified in the most critical national assets. Final-circuit protection in distribution boards across NEOM, Riyadh and Jeddah commercial and residential developments, where the S803S-K50 isolates lighting, socket and small-power circuits selectively. Control-circuit and instrumentation protection in Aramco and SABIC process plants, protecting PLC, relay and transformer circuits in panels and junction boxes. Transformer and motor circuit protection (K and D curves) at industrial facilities in Jubail and Yanbu, tolerating magnetizing and starting inrush without nuisance tripping. Photovoltaic and renewable DC/AC sub-circuit protection in Saudi solar projects supporting Vision 2030, where high breaking capacity and tropicalization are essential. From Saudi Aramco oil and gas installations and SABIC petrochemical complexes to MAADEN mining operations, SWCC desalination plants, SEC power generation and the NEOM giga-project, ABB electrical equipment forms the backbone of power distribution, motor control and process automation, where uptime, safety and energy efficiency are paramount.
Why Choose Razz Middle East for ABB Products
Razz Middle East is your authorized ABB distribution partner in Saudi Arabia, supplying only genuine OEM ABB products with full manufacturer warranty, SASO import documentation and Saudi Aramco material approvals. We hold local stock in Dammam, Riyadh and Jeddah for fast delivery to Jubail, Yanbu, Al Khobar and across the Kingdom, backed by an in-Kingdom engineering team for sizing, selection and after-sales support. Request a quotation for the ABB S803S-K50 and receive a response within four working hours. Contact Razz Middle East today for competitive pricing, reliable supply and expert technical support on the full ABB low-voltage and drives range.
Technical Specifications
Full specifications for the S803S-K50
- Rated current
- 50 A
- Poles
- 3
- Tripping characteristic
- K-curve
- Breaking capacity (Icu)
- up to 50 kA
- Standard
- IEC 60947-2
- Module width
- 25 mm per pole
- Mounting
- DIN rail (35 mm)
- Terminals
- box terminals up to 50 mm²
- Degree of protection
- IP20
- Standard
- IEC 60947-2
- Certifications
- CE, cULus, RMO, marine type approvals
- Rated insulation voltage
- 800 V
ELECTRICAL
MECHANICAL
STANDARDS
Key Features & Benefits
- The S803S-K50 provides a 50 A rated final-circuit protection with a up to 50 kA breaking capacity, safeguarding cables and equipment against overload and short circuit to international standard in Saudi distribution boards.
- Its defined tripping curve is matched to the connected load type, ensuring selective coordination with upstream MCCBs so that only the faulty circuit is isolated — critical for keeping unaffected loads running at NEOM and commercial facilities.
- Bi-connect (cable plus busbar) terminals allow fast, reliable assembly onto distribution busbars, accelerating panel manufacture and ensuring low-resistance, low-temperature-rise connections under continuous load ensuring reliable long-term operation in the high-temperature, high-humidity and dust conditions typical of Saudi Arabian industrial sites.
- The device is tropicalized and tested for high humidity and salt-laden coastal atmospheres, maintaining calibration and contact integrity at Red Sea and Arabian Gulf coastal installations delivered fast across the Kingdom to Jubail, Yanbu, Al Khobar and remote project sites with a four-hour quotation response.
- A clear contact-position indicator and sealable toggle support safe isolation and tamper protection during maintenance, aligning with Saudi facility LOTO and audit requirements all supplied as genuine ABB product with full warranty and local stock from Razz Middle East in Dammam, Riyadh and Jeddah.
- Snap-on 35 mm DIN-rail mounting and a slim per-pole module width maximize circuit density in compact enclosures, reducing board size and cost for KSA contractors backed by SASO documentation, Saudi Aramco material approvals and an in-Kingdom engineering team for sizing and after-sales support.
Industrial Applications in Saudi Arabia
- Final-circuit protection in distribution boards across NEOM, Riyadh and Jeddah commercial and residential developments, where the S803S-K50 isolates lighting, socket and small-power circuits selectively backed by SASO documentation, Saudi Aramco material approvals and an in-Kingdom engineering team for sizing and after-sales support.
- Control-circuit and instrumentation protection in Aramco and SABIC process plants, protecting PLC, relay and transformer circuits in panels and junction boxes ensuring reliable long-term operation in the high-temperature, high-humidity and dust conditions typical of Saudi Arabian industrial sites.
- Transformer and motor circuit protection (K and D curves) at industrial facilities in Jubail and Yanbu, tolerating magnetizing and starting inrush without nuisance tripping delivered fast across the Kingdom to Jubail, Yanbu, Al Khobar and remote project sites with a four-hour quotation response.
- Photovoltaic and renewable DC/AC sub-circuit protection in Saudi solar projects supporting Vision 2030, where high breaking capacity and tropicalization are essential all supplied as genuine ABB product with full warranty and local stock from Razz Middle East in Dammam, Riyadh and Jeddah.
- Sub-distribution and machine-panel protection at desalination and water-treatment plants along the Arabian Gulf and Red Sea coasts, resisting humid, salt-laden atmospheres backed by SASO documentation, Saudi Aramco material approvals and an in-Kingdom engineering team for sizing and after-sales support.
- Critical-load protection in data centers and hospitals in Dammam and Riyadh, where selective coordination keeps unaffected circuits energized during a fault ensuring reliable long-term operation in the high-temperature, high-humidity and dust conditions typical of Saudi Arabian industrial sites.
Industrial Supplier in Saudi Arabia
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Frequently Asked Questions — S803S-K50
Common questions from buyers in Saudi Arabia and the GCC