Catalogue reference. Availability, exact specification and OEM or aftermarket supply are confirmed in your quotation.
1SAZ211201R2033 — Thermal overload relay
relayPart number: 1SAZ211201R2033
ABB 1SAZ211201R2033 is a TA25DU-4.0M three-pole thermal overload relay with an adjustable 2.8–4.0 A setting range and trip class 10A. It provides motor overload and phase-failure protection, with temperature compensation, selectable manual or automatic reset, trip indication, STOP and TEST functions, and one normally open and one normally closed auxiliary contact.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ211201R2033 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TA25DU-4.0, TA25DU-4.0 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; main circuit 440 V DC |
| Rated Operational Current (I e ) | 4 A |
| Rated Frequency (f) | Auxiliary circuit 50 Hz, 60 Hz and DC; main circuit 50 Hz, 60 Hz and DC |
| 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 | at Rated Operating Conditions per Pole 1.1 ... 2.2 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 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 |
| Setting Range | 2.8–4.0 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 is the adjustable current range of ABB 1SAZ211201R2033?
The TA25DU-4.0M has an adjustable overload setting range of 2.8–4.0 A and a rated operational current of 4 A. Check the motor nameplate and application requirements before selecting the relay.
What protection and trip class does the TA25DU-4.0M provide?
This three-pole thermal overload relay provides motor protection against overload and phase failure. Its trip class is 10A; this is a trip-class designation, not a 10 A current setting.
Does the TA25DU-4.0M have manual and automatic reset?
Yes. Manual or automatic reset is selectable. It also has a trip indicator, STOP and TEST functions, one normally closed trip contact and one normally open signal contact. Automatic reset can allow a motor to restart unexpectedly.
What are the main-circuit voltage ratings of the 1SAZ211201R2033?
The listed main-circuit rated operational voltage is 690 V AC or 440 V DC. The maximum main-circuit operating voltage under UL/CSA is 600 V AC. Verify the full ratings and circuit design for the intended installation.
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Research information may be outdated. Confirm fitment and specifications with our team before ordering.