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ABB 1SAZ511301R1002 — Overload Relays

ABB 1SAZ511301R1002 Thermal Overload Heater, 0.68 kg

MPN1SAZ511301R1002

ABB 1SAZ511301R1002 thermal overload heater for starters, 0.68 kgs, in the Contactors and Starters class.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1SAZ511301R1002 — Mechanical
ParameterValue
Weight0.68 kgs

Product details

Part identity and class

The ABB 1SAZ511301R1002 is a thermal overload heater for starters, listed under the Contactors and Starters category as part of the broader Circuit Breakers, Fuses & Protection line. Heaters in this class mount to the matching ABB overload relay base and carry the motor heating element that trips the relay on sustained overcurrent — they are the consumable, current-rated element inside the starter assembly, not a standalone protective device.

Panel-side fit and integration

On the panel, the heater clicks into the matching ABB overload relay base — wiring practice is the same spring/screw cage pattern used across the line, so the panel builder's termination rhythm carries over from adjacent starters. The check that matters at FAT is that the heater's current range brackets the motor's full-load amps with the relay dial set inside that range; a heater that is one size bracket off will nuisance-trip on cold start or fail to protect on locked rotor.

Frequently asked questions

Will 1SAZ511301R1002 drop into a panel specified around 1SAZ411201R1001 without rewiring?

Both are ABB thermal overload heaters in the same class, but they are different order codes in different sub-ranges. Drop-in compatibility is not asserted from the part numbers alone — confirm the relay base frame and heater current range against the original BOM before specifying, since a same-class heater from a different code may sit on a different relay body.

MPN
1SAZ511301R1002