General Description
The ADR244A is Motor protection relay This type of relays are designed using latest numerical technology and having programmable digital input and outputs to minimized external contact multiplication electromechanical relays. All relays are tested for EMI / EMC noise as per international IEC specifications.
General features of this relay are as given below
| Model |
Functional Details |
Cabinet Style |
| ADR244A |
Motor Protection Relay |
CSA |
|
|
|
|
| ANSI Code |
Description |
| CLP |
Cold load pick up |
| 37 |
Under current Protection |
| 46 |
Negative Phase Sequence Protection |
| 46BC |
Broken Conductor Detection |
| 47 |
Phase Reversal Detection |
| 48 |
Number of starts |
| 49 |
Thermal overload Protection |
| 50 |
Instantaneous/Definite Time Phase Over current Protection |
| 51 |
Inverse Time Phase Over current Protection |
| 50N |
Instantaneous/Definite Time Ground Over current Protection |
| 50LR |
Locked rotor/Motor stall Protection |
| 51N |
Inverse Time Ground Over current Protection |
| 64G |
High Impedance Restricted Earth Fault Protection |
| 50BF |
Breaker Failure |
| 86 |
Lockout (Trip command) |
