ABB 1SAM250000R1009 MS116-6.3 4.0-6.3A 3P 50kA 400VAC Motor Protection Circuit-Breaker

The ABB MS116-6.3 motor protection circuit-breaker (SKU 1SAM250000R1009) is a 3-pole manual motor starter rated at 4.0–6.3A with an exceptional 50 kA breaking capacity at 400 VAC, delivering reliable short-circuit and overload protection for three-phase motors in demanding industrial environments. Compact at just 45mm × 90mm × 85.6mm and weighing only 0.28 kg, the MS116-6.3 is engineered for space-efficient control panel integration across automation and motor control applications.

Technical Specifications

Certifications & Standards

• CE: Conforms to EU low voltage and electromagnetic compatibility directives
• UKCA: UK Conformity Assessed for post-Brexit UK market compliance
• UL: Underwriters Laboratories listed for North American market
• CSA: Canadian Standards Association certified
• CCC: China Compulsory Certification for the Chinese market
• EAC: Eurasian Conformity mark for Russia and CIS countries
• KC: Korean Certification for South Korean market compliance
• DNV: Det Norske Veritas approved for marine and offshore applications
• GL: Germanischer Lloyd approved for marine applications
• LR: Lloyd's Register approved for maritime use
• IEC/EN 60947-1: General rules for low-voltage switchgear and controlgear
• IEC/EN 60947-2: Circuit-breakers standard
• IEC/EN 60947-4: Electromechanical contactors and motor-starters standard
• IEC 60715: Dimensions of low-voltage switchgear and controlgear — DIN rail mounting
• IEC 60335-2: Safety of household and similar electrical appliances (supplementary)
• IEC 60068-2: Environmental testing standard
• EN 45555: General methods for the assessment of the ability to recover resources from electrical and electronic equipment
• EN 45555-88: Supplementary standard for resource recovery assessment
• REACH: EU regulation on registration, evaluation, authorisation and restriction of chemicals
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• WEEE: Waste Electrical and Electronic Equipment Directive compliant

Applications & Use Cases

• Direct-on-line (DOL) motor starting and protection for three-phase motors up to 6.3A
• Motor control centers (MCC) and industrial control panels
• Conveyor systems, pumps, fans, and compressors in manufacturing plants
• Marine and offshore installations (DNV, GL, LR approved)
• Process automation and HVAC motor protection
• OEM machine building requiring compact, high-breaking-capacity protection