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ABB 1SAZ421201R1006 — Overload Relays

ABB 1SAZ421201R1006 Thermal Overload Heater, 0.91 kgs

MPN1SAZ421201R1006

ABB 1SAZ421201R1006 thermal overload heater for starters, listed at 0.91 kgs, paired with the matching ABB contactor/starter frame.

$132.08Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1SAZ421201R1006 — Mechanical
ParameterValue
Weight0.91 kgs

Product details

What the line is and how the seed part fits

The 1SAZ421201R1006: Procurement-wise it lives in the Contactors and Starters / Thermal Overload Heaters for Starters lane, which is the correct punch-out category for an indirect-spend tail buyer adding it to a starter BOM — no maverick SKU, no off-catalog line.

Spec recap and what's not on the slip

Single-supply part — no fieldbus, no auxiliary electronics inside the heater; the heater is a passive bi-metal element that the starter's mechanism reads. Communication to the starter is purely mechanical/thermal, so there is no protocol address to set on the unit itself. Mounting is onto the matching ABB starter frame under the contactor; it is not a DIN-rail standalone device. Verify the contactor frame matches the heater's intended starter before energising — a wrong-frame pair gives the wrong trip curve even when the heater physically seats.

Frequently asked questions

When sourcing 1SAZ421201R1006, what's the closest functional second-source — 1SAZ421201R1004?

1SAZ421201R1004 sits in the same heater family at the same listed weight of 0.91 kgs, so it is the closest mechanical alternative — but the trip setting differs, so the motor's FLA must match the chosen heater's range before substitution.

What is 1SAZ421201R1006's listed part # on this Thermal Overload Heaters for Starters line?

The listed part number is 1SAZ421201R1006, by ABB, in the Thermal Overload Heaters for Starters lane.

What is 1SAZ421201R1006's listed weight on this Thermal Overload Heaters for Starters line?

The listed weight is 0.91 kgs.

Will 1SAZ421201R1006 drop into a panel that was specified around 1SAZ421201R1004 without rewiring?

At the mechanical level, yes — same heater class and same listed 0.91 kgs figure. The trip band moves between R1006 and R1004, so the motor's nameplate FLA has to fall inside the R1006 setting range before the swap is signed off.

MPN
1SAZ421201R1006