The ABB 1SAZ721201R1049 is a thermal overload heater element in the company's AF thermal overload family — a snap-on resistive element that defines the motor full-load-amp trip curve when seated in the matching thermal overload relay base. It sits in the starters and contactor-protection class, one tier under the circuit-protection umbrella, and its job is purely to set the current band for the overload relay it pairs with; the relay body, not the heater, carries the trip mechanism and auxiliary contacts.
ABB 1SAZ721201R1049 Thermal Overload Heater Element
MPN1SAZ721201R1049
ABB 1SAZ721201R1049 thermal overload heater element, sized to clip onto the matching AF-family thermal overload relay and starter for motor running protection.
$24.13Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.00 kgs |
Product details
Frequently asked questions
What is the closest functional second-source for the 1SAZ721201R1049?
Within the same ABB AF thermal overload heater family the 1SAZ721201R1053 sits adjacent in the FLA band and is the natural cross-check when the motor nameplate lands between two element ranges; it shares clip geometry and relay seat, so it is a setting change rather than a rewire.
Will the 1SAZ721201R1049 drop into a panel specified around the 1SAZ721201R1053 without rewiring?
Both elements share the AF thermal overload family clip and seat geometry, so the 1SAZ721201R1049 drops into a relay base built for a 1SAZ721201R1053 with no wiring change; only the trip band shifts with the suffix.
MPN
1SAZ721201R1049