ABB 1SAM350000R1008 MS132-4.0 3P 4A 100kA Motor Protection Circuit Breaker

The ABB MS132-4.0 (SKU 1SAM350000R1008) is a 3-pole manual motor starter and motor protection circuit-breaker rated at 4.0 A with an exceptional breaking capacity of 100 kA at 400 V AC. Designed for direct-on-line motor protection in industrial control panels and automation systems, the MS132-4.0 delivers reliable short-circuit, overload, and phase-failure protection in a compact 45 mm wide DIN-rail-mount housing weighing only 0.28 kg.

Technical Specifications

Certifications & Standards

• CE: Conforms to EU Low Voltage and EMC Directives
• UKCA: UK Conformity Assessed for Great Britain market
• UL: UL Listed per UL508 for industrial control equipment
• UL508: Industrial Control Equipment standard compliance
• CSA: Canadian Standards Association certified
• CCC: China Compulsory Certification
• EAC: Eurasian Conformity mark for CIS/EAEU markets
• KC: Korea Certification mark
• ATEX: Certified for use in explosive atmospheres
• IECEx: International IEC scheme for equipment in explosive atmospheres
• DNV: Det Norske Veritas type approval for marine applications
• LR: Lloyd's Register type approval
• RINA: Registro Italiano Navale type approval
• RMRS: Russian Maritime Register of Shipping approval
• IEC 60947-1 / EN 60947-1: Low-voltage switchgear and controlgear — General rules
• IEC/EN 60947-2: Low-voltage switchgear — Circuit breakers
• IEC/EN 60947-4: Low-voltage switchgear — Contactors and motor starters
• IEC 60715: Dimensions for DIN rail mounting of low-voltage switchgear
• IEC 60335-2: Safety of household and similar electrical appliances — Particular requirements
• IEC 60068-2: Environmental testing procedures
• EN 45555-80: General methods for the assessment of the energy efficiency of networked standby
• REACH: EU chemical safety regulation compliance
• RoHS: Restriction of Hazardous Substances compliant
• WEEE: Waste Electrical and Electronic Equipment directive compliant

Applications & Use Cases

The ABB MS132-4.0 motor protection circuit-breaker is ideal for protecting three-phase motors and loads in industrial automation, machine building, process control, and marine environments. Its 100 kA breaking capacity at 400 V AC makes it suitable for high-fault-energy installations, while its compact DIN-rail form factor simplifies integration into control panels and motor control centers (MCCs). The ATEX and IECEx certifications extend its use into hazardous area installations such as chemical plants, offshore platforms, and oil & gas facilities.