L&T's extensive range of contactors is augmented by their range of thermal overload relays, giving reliable protection across diverse applications. MN relays are available from 0.2 to 570A in trip class 10A and 30A. Relays can be directly mounted on contactors for space-saving or through separate mounting kits, depending on the requirement. MO contactors along with RTO relays, MNX contactors along with RTX relays and MX contractors along with MX-R0 relays are perfect examples of these compact motor feeders. These relays are protection devices required in various motor starter combinations and are available for various DOL/ Star delta combinations. They have a built-in sensitive mechanism which protects the motor from overload and single phasing.MN SeriesMN Thermal Overload Relays, available from 0.2A to 570A complement the MNX range of power contactors. The relays are ambient temperature compensated, and the unique double slide mechanism provides reliable protection against single phasing. MN 12L relays with trip class 30A are specially designed for long starting time applications.
Features:
• Protections:
- Overload
- Earth Fault
- Locked Rotor
- Single Phasing, Current Unbalance,
Phase Sequence Reversal
- Under Current
• Inbuilt CT’s (1 A to 88 A)
• Trip indication
• Test facility
• Selectable trip class - 10A, 10, 20 and 30
as per IEC 947-4-1
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