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General| Series | IAC |
|---|---|
| Vibration Resistance | 10-55 Hz, 1.5mm amplitude |
| Contact Form | DPDT, 3PDT |
| Contact Voltage Rating (AC) | 240V |
| Contact Voltage Rating (DC) | 28V |
| Operate Time | 15ms |
| Release Time | 10ms |
| Mechanical Life | 10, 000, 000 operations |
| Ambient Temperature | -40°C to +55°C |
| Electrical Life | 100, 000 cycles |
Provides a general overview of the Type IAC53 and IAC54 extended-range, single-phase time overcurrent relays.
Procedure for visually inspecting the relay upon receipt to ensure no shipping damage.
Details on checking mechanical components like the disk, spring, and contacts for proper operation.
Covers the electrical testing procedures for relays, including general drawout relay tests.
Explains how to set the time dial and adjust the time-overcurrent unit's operation.
Guides on setting the pickup value for the instantaneous unit by adjusting the pole piece.
Procedure for testing the pickup and dropout characteristics of the target and seal-in unit.
Details on tests to be performed during relay installation for all units.
Recommends a schedule for periodic checks and maintenance based on user experience.
Guidance on recalibrating and adjusting the time-overcurrent unit's pickup and time settings.
Instructions for servicing and adjusting the instantaneous unit's contacts and operation.
Procedures for servicing the target and seal-in unit, including contact wipe checks.
