Thermal overload relay for A-Line contactors
The TA25DU5.0-20 is a thermal bi-metallic overload relay rated for 5 A continuous, adjustable down to 3.5 A via the dial. Trip Class 20 means it allows a 20-second cold start before tripping — sized for standard motor starts on pumps, fans, and light conveyors where the acceleration time stays under 20 seconds. Selectable manual or automatic reset gives the panel builder a choice: auto reset for remote or unattended installations, manual reset for local fault investigation. Designed for the A-Line family, this relay mounts directly to A/AE/AL9 through A/AE/AL40 frame contactors. The 3-pole NEMA-style footprint keeps the wiring pattern consistent with existing A-Line panels — no re-layout needed when swapping a failed unit.
Sourcing and lifecycle
This part carries a current-production lifecycle stage. Sourced through independent distribution channels; pricing and availability confirmed at quote time against an RFQ. No official successor has been issued — the TA25DU5.0-20 remains the active order code for this 5 A thermal overload relay in the A-Line range.