JR28 Thermal Overload Relay

Frequency and Voltage: The thermal overload relays are suitable for AC motors operating at a frequency of 50/60Hz and a voltage of up to 690V.

Current Range: They can handle a current range of 0.1-93A, providing protection for motors of various sizes.

Duty Cycle: The relays are suitable for motors operating under either an 8-hour duty cycle or uninterrupted duty.

Protection Functions: The relays offer multiple protection functions, including overload protection and phase failure protection, ensuring the safe operation of the motors.

Indication: They provide ON/OFF indication, allowing users to easily monitor the status of the relay.

Temperature Compensation: The relays feature temperature compensation to ensure accurate and reliable protection under different temperature conditions.

Reset Options: They offer both manual and automatic reset options, providing flexibility in how the relays are reset after a fault condition.

International Standard: The JR28 series thermal overload relays comply with the IEC 60947-4-1 international standard, ensuring their performance and safety.
Mounting Options: The relays can be mounted onto contactors, allowing for a compact and integrated solution, or they can be installed as standalone units for individual motor protection.

In summary, the JR28 series thermal overload relays provide essential protection for AC motors, including overload and phase failure protection. They operate within a wide frequency and voltage range, offer multiple protection functions, and comply with international safety standards. The relays can be mounted onto contactors or used as standalone units, providing flexibility in installation options.