Rơle bảo vệ động cơ, Motor protection relay ABB SPAM 150 C

• Motor protection relay

• The relay can also be used for the protection of other objects, such as transformers and feeders, requiring a single-, two- or three-phase overcurrent and/or overload protection and non-directional earth-fault protection

Product features

• Three-phase thermal overload protection
• High-set overcurrent protection with instantaneous or with definite time operation
• Phase unbalance and single-phasing protection with inverse time characteristic
• Fast operating incorrect phase sequence protection
• Sensitive earth-fault protection with definite time characteristic
• Undercurrent protection with definite time characteristic
• Several selectable motor start-up supervision methods
• Continuous self-supervision of hardware and software
• Current range handled meets the requirements for ExE motor drives of Zone 1