Catalogue reference. Availability, exact specification and OEM or aftermarket supply are confirmed in your quotation.
1SAZ321201R2005 — Thermal overload relay
relayPart number: 1SAZ321201R2005
ABB 1SAZ321201R2005 (TA75DU-63M) is a three-pole thermal overload relay for motor overload and phase-failure protection. It has a 45–63 A adjustable current range, class 10A tripping, one normally closed and one normally open auxiliary contact, and selectable manual or automatic reset.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ321201R2005 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TA75DU-63, TA75DU-63 V1000, TA80DU-63, TA80DU-63 V1000 |
| Product Net Width | 54 mm |
| Product Net Height | 90 mm |
| Product Net Depth / Length | 111 mm |
| Product Net Weight | 0.335 kg |
| Rated Operational Voltage | Main circuit: 690 V AC; 440 V DC |
| Rated Operational Current (I e ) | 63 A |
| Number of Poles | 3P |
| Number of Auxiliary Contacts NC | 1 |
| Number of Auxiliary Contacts NO | 1 |
| Number of Protected Poles | 3 |
| Conventional Free-air Thermal Current (I th ) | Auxiliary Circuit NC 5 A |
| Rated Operational Current AC-15 (I e ) | (120 V) NC 3 A |
| Degree of Protection | Housing IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible 1/2x 0.75 ... 2.5 mm² |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Power Loss | at Rated Operating Conditions per Pole 1.9 ... 3.8 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | (NC:) B600 |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 8-1 AWG |
| Connecting Capacity Auxiliary Circuit UL/CSA | Flexible 1/2x 18-14 AWG |
| Tightening Torque UL/CSA | Auxiliary Circuit 12 in·lb |
| Ambient Air Temperature | Operation -25 ... +55 °C |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Overload current setting range | 45–63 A |
| Trip class | 10A |
| Reset mode | Selectable manual or automatic |
| Protection functions | Motor overload and phase failure |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What current range and trip class does the ABB TA75DU-63M have?
The 1SAZ321201R2005 relay has an adjustable overload current range of 45–63 A and trip class 10A. Check the motor nameplate current and the protection requirements before selecting it.
What motor protection and auxiliary contacts does this relay provide?
This three-pole thermal overload relay provides motor protection against overload and phase failure. It has one normally closed and one normally open auxiliary contact, plus test and stop functions and a trip indicator.
Can the TA75DU-63M be reset manually or automatically?
Yes. The relay offers a choice of manual or automatic reset and includes a trip indicator. Confirm the appropriate reset mode for the control system and its safety requirements.
How is the ABB 1SAZ321201R2005 mounted?
The relay can mount directly on a block contactor; a separate mounting kit is offered as an accessory. Confirm the exact contactor model and equipment serial number, where applicable, before ordering; compatibility with a particular installation is not established here.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.