Catalogue reference. Availability, exact specification and OEM or aftermarket supply are confirmed in your quotation.
1SAZ211201R2043 — Thermal overload relay
relayPart number: 1SAZ211201R2043
ABB 1SAZ211201R2043 (TA25DU-11M) is a three-pole thermal overload relay with an adjustable 7.5–11 A setting range and class 10A trip characteristic. It provides motor overload and phase-failure protection, selectable manual or automatic reset, and one normally closed and one normally open auxiliary contact.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ211201R2043 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TA25DU-11, TA25DU-11 V1000 |
| Product Net Width | 44 mm |
| Product Net Height | 80 mm |
| Product Net Depth / Length | 94 mm |
| Product Net Weight | 0.15 kg |
| Rated Operational Voltage | Main circuit: 690 V AC; 440 V DC |
| Rated Operational Current (I e ) | 11 A |
| Rated Frequency (f) | Auxiliary Circuit 50 Hz |
| 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; main circuit terminals IP10 |
| Connecting Capacity Auxiliary Circuit | Flexible 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1x 0.75 ... 4 mm² |
| Power Loss | 1.1–2.2 W per pole at rated operating conditions |
| 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 16-8 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 to +55 °C; storage: −40 to +70 °C |
| Maximum Operating Altitude Permissible | 2000 m |
| Resistance to Shock acc. to IEC 60068-2-27 | 25g 2 shocks 13 ms |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Current Setting Range | 7.5–11 A |
| Trip Class | 10A |
| Reset Mode | Selectable manual or automatic |
Catalogue information may contain errors or be out of date.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 TA25DU-11M provide?
The ABB 1SAZ211201R2043 has an adjustable overload setting range of 7.5–11 A and a trip class of 10A. Check the motor nameplate current and the requirements of the motor circuit before selection.
What protection and auxiliary contacts does this relay offer?
It is a three-pole thermal overload relay intended to protect motors against overload and phase failure. It includes one normally closed trip contact and one normally open signal contact.
Does the TA25DU-11M offer manual and automatic reset?
Yes. The relay has selectable manual or automatic reset, along with test and stop functions and a trip indication.
How is the 1SAZ211201R2043 mounted and how can I check fit?
The relay is designed for direct mounting on compatible block contactors; a separate mounting kit is an available accessory. Provide the contactor model and equipment serial number to verify the complete assembly before ordering.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.