ABB 1SAM360000R1008 MO132-4.0 4A 3P 100kA Motor Protection Circuit Breaker Magnetic Only

The ABB MO132-4.0 (SKU: 1SAM360000R1008) is a 3-pole, 4 A magnetic-only motor protection circuit-breaker rated at 400 V AC with an exceptional breaking capacity of 100 kA at 400 V AC. Designed for the MO132 series, the MO132-4.0 provides short-circuit protection without thermal overload tripping, making it ideal for applications where external overload protection is already installed. Its compact 45 mm width and lightweight 0.28 kg design simplify panel layout and installation.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — meets Great Britain market requirements post-Brexit
• EAC: Eurasian Conformity — approved for Eurasian Economic Union markets
• DNV: Det Norske Veritas — certified for marine and offshore applications
• LR: Lloyd's Register — certified for marine and industrial installations
• RINA: Registro Italiano Navale — Italian maritime classification society approval
• RMRS: Russian Maritime Register of Shipping — certified for Russian maritime use
• UL: Underwriters Laboratories — certified for North American markets
• KC: Korea Certification — approved for the South Korean market
• CCC: China Compulsory Certification — required for the Chinese market
• CSA: Canadian Standards Association — certified for Canadian market requirements
• IEC 60947-1: General rules for low-voltage switchgear and controlgear
• EN 60947-1: European harmonised standard for low-voltage switchgear and controlgear
• IEC/EN 60947: Comprehensive low-voltage switchgear and controlgear series
• IEC 60068-2: Environmental testing standard for electrical and electronic products
• EN 60947-4: Standard covering contactors and motor-starters
• EN 45555: General methods for the assessment of the ability to recover resources from electrical and electronic equipment
• REACH: EU regulation on the registration, evaluation, authorisation and restriction of chemicals
• RoHS: Restriction of Hazardous Substances — compliant with EU directive on hazardous materials
• WEEE: Waste Electrical and Electronic Equipment — compliant with EU recycling directive

Applications & Use Cases

The ABB MO132-4.0 motor protection circuit-breaker is well suited for a wide range of industrial and marine control panel applications. Its magnetic-only protection is ideal for motor branch circuits where a separate overload relay — such as an ABB thermal overload relay — handles overload protection. Typical applications include:

• Motor branch-circuit short-circuit protection in industrial machinery and automation panels
• Marine and offshore switchboards (DNV, LR, RINA, RMRS certified)
• Control panels requiring compact, high breaking-capacity protection at 400 V AC
• Global installations requiring multi-market certification (CE, UL, CCC, CSA, KC, EAC)
• Coordination with contactors and overload relays in DOL or reversing motor starter assemblies