LoadGuard™ MSU
LoadGuard™ MSU (Modular Series Unit) is engineered for hard-wired installation within or adjacent to electrical loads such as outdoor lighting, robotics, process automation systems, motors, HVAC systems, pumps, heaters, programmable logic controllers and other point-of-use applications. Compact and powerful, the LoadGuardTM MSU protects these and other individual components from damaging electrical transients, high-frequency noise and high energy disturbances. LoadGuardTM provides 50 kA of surge protection for loads up to 24 A.
Surge current protection
Parallel MOV Arrays: LoadGuard products employ MOVs in parallel arrays placed at the input and output terminals to protect critical loads from high-energy transient damage. MSU surge current capacity is 50 kA per mode.
Benefits
- Series-connected design
- Compact footprint/easy installation
- High frequency noise filtering
Features
- Recognized to UL 1449 4th Edition as a Type 2 compliant assembly
- Rugged, nonmetallic enclosure
- Component level fusing
- Status indicator light
Technical specifications
- Maximum Surge Current Rating 50kA Per Mode
- Voltage (Single-Phase Applications) 120, 220 or 277
- Voltage (3-Wire + Ground Applications) 220/380 or 277/480
- Voltage (Split-Phase Applications) 120/240
Standards and certifications
- Listed by ETL to UL 1449 4th Edition, Type 4 for Type 2 SPD applications, cUL and UL 1283
- Compliant to IEEE C62.41.1-2002, C62.41.2-2002 and C62.45-2002
- NFPA 70 [NEC], Article 285
- RoHS Compliant
- CE, IEC 61643-11-2011
- EMC Directive 2004/108/EC
- Low Voltage Directive 2006/95/EC
Applications
- Outdoor lighting
- Robotics
- Process automation systems
- Motors
- HVAC systems
- Pumps
- Heaters
- Programmable logic controllers
- Other point-of-use applications
Downloadable Resources