Massarent COSFP-040 40A Four Pole Changeover Switch

Long Description

The COSFP-040 40A Four Pole Changeover Switch is a high-quality manual transfer switch engineered to safely switch electrical loads between two independent power sources, such as the utility mains and a backup generator or inverter.

Featuring a 40A current rating and a Four Pole (FP) configuration, the switch simultaneously transfers all three phases and the neutral conductor, providing complete electrical isolation and preventing back-feeding between power sources. This ensures enhanced safety and reliable operation during power interruptions.

Manufactured using premium flame-retardant thermoplastic housing and high-conductivity copper alloy contacts, the COSFP-040 offers excellent insulation, low contact resistance, and long mechanical life. Its compact DIN rail-mounted design enables quick installation in distribution boards, electrical panels, and switchgear systems.

Suitable for factories, commercial buildings, residential complexes, hospitals, hotels, and industrial facilities, the COSFP-040 delivers dependable power source transfer while maintaining electrical safety and operational efficiency. Four-pole manual changeover switches of this class are commonly built with a center-off (I–0–II) position for secure source selection.

Key Features

40A rated current
Four Pole (FP) configuration
Manual changeover between two power sources
Simultaneous switching of three phases and neutral
I–0–II operating positions
Suitable for mains and generator applications
Compact DIN rail mounting
Flame-retardant thermoplastic housing
Low contact resistance
Long mechanical and electrical life
Safe and reliable power transfer

Applications

Three-phase power distribution systems
Mains to generator changeover
Generator backup systems
Industrial electrical panels
Commercial buildings
Residential apartments
Hospitals and healthcare facilities
Hotels and shopping complexes
Manufacturing plants
Office buildings
Distribution boards
Switchgear assemblies
Electrical control panels
Emergency backup power systems
Solar and inverter power systems