Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAX351001R1101 — Electronic overload relay
relayPart number: 1SAX351001R1101
ABB 1SAX351001R1101 is the EF146-150 self-supplied electronic overload relay for motor overload and phase-failure protection. It has a 54–150 A adjustable setting range, selectable 10E, 20E and 30E trip classes, and manual or automatic reset. The three-pole relay includes one normally closed trip contact and one normally open signal contact, plus STOP and TEST functions.
Looking for ABB 1SAX351001R1101? This catalogue reference is listed under relay. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.
Availability on request
Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAX351001R1101 |
| Category | Electrical & controls |
| Ex Operating Instructions | ATEX - Operating instructions for EF electronic overload relay for potentially explosive areas |
| Time-Current Characteristic Curve | Tripping characteristic - Electronic overload relay EF19, EF45, EF65, EF96, EF146, EF205, EF370, EF460, EF750 from cold state |
| Product Net Width | 89.05 mm |
| Product Net Height | 150.4 mm |
| Product Net Depth / Length | 105.2 mm |
| Product Net Weight | 0.879 kg |
| Setting Range | 54–150 A |
| Rated Operational Voltage | Main circuit: 1000 V AC; auxiliary circuit: 600 V AC/DC |
| Rated Operational Current (I e ) | 150 A |
| Rated Frequency (f) | Main circuit: 50/60 Hz; auxiliary circuit: DC, 50/60 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Auxiliary Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 1000 V |
| Number of Poles | 3 |
| 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 6 A |
| Rated Operational Current AC-15 (I e ) | (240 V) NC 3 A |
| Rated Operational Current DC-13 (I e ) | (125 V) NC 0.55 A |
| Degree of Protection | Housing: IP20; main circuit terminals: IP10 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1x 10 ... 70 mm² |
| Tightening Torque | Auxiliary Circuit 0.8 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Mounting Position | 1 ... 6 |
| Power Loss | at Rated Operating Conditions per Pole 0.204 ... 1.575 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | (NC:) B600 |
| Published component type | Electronic overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Trip Class | 10E, 20E or 30E, selectable |
| Reset | Manual or automatic, selectable |
| Ambient Operating Temperature | −25 to +70 °C, temperature compensated |
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 does the ABB EF146-150 overload relay cover?
ABB identifies 1SAX351001R1101 as the EF146-150, with an adjustable overload setting range of 54–150 A. Check the motor nameplate current and application requirements before selecting the relay.
What protection and reset options does the EF146-150 provide?
The self-supplied relay protects motors against overload and phase failure. It has selectable trip classes 10E, 20E and 30E, selectable manual or automatic reset, a trip indicator, and STOP and TEST functions. No separate external supply is needed for the relay.
Does the EF146-150 also provide short-circuit protection?
No. ABB states that the overload relay must be protected against short circuits by an appropriate separate protective device. Selection depends on the applicable circuit and coordination requirements; consult the ABB data sheet and a qualified electrical professional.
Will this overload relay fit my existing motor starter?
The EF146-150 is designed for direct mounting on compatible block contactors, but fitment to a specific starter cannot be confirmed from its motor rating alone. Provide the contactor and starter model and serial numbers, motor nameplate current and supply voltage for verification.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.