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1SAX111001R1105 — Electronic overload relay
relayPart number: 1SAX111001R1105
ABB 1SAX111001R1105 is the E16DU-18.9 electronic overload relay, with an adjustable current range of 5.7–18.9 A. It is self-supplied and provides motor overload and phase-failure protection. The relay has selectable 10E, 20E and 30E trip classes, manual or automatic reset, and one normally closed and one normally open auxiliary contact.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAX111001R1105 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Electronic overload relay E16DU, E45DU E80DU, E140DU, E200DU, E320DU, E500DU, E800DU from cold state. Valid for production date from week 49/07 (0497) |
| Product Net Width | 44.4 mm |
| Product Net Height | 74.6 mm |
| Product Net Depth / Length | 57 mm |
| Product Net Weight | 0.15 kg |
| Setting Range | 5.7–18.9 A |
| Rated Operational Voltage | Auxiliary Circuit 600 V AC/DC |
| Rated Operational Current (I e ) | 18.9 A |
| Rated Frequency (f) | Auxiliary Circuit 50 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Auxiliary Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 690 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 | IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 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 0.028 ... 0.304 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | B600 |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 16-10 AWG |
| 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 Method | Manual or automatic, selectable |
| Ambient Operating Temperature | −25 to +70 °C |
| Power Supply | Self-supplied; no external supply required |
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 ABB 1SAX111001R1105 cover?
The E16DU-18.9 has an adjustable overload current setting of 5.7–18.9 A. Check the motor nameplate and the complete protection design to establish whether this range is appropriate.
Which trip classes and reset modes does the E16DU-18.9 offer?
The relay offers selectable trip classes 10E, 20E and 30E, and selectable manual or automatic reset. Choose the settings for the motor and its starting conditions.
Does this relay need a separate power supply, and what does it protect against?
The E16DU-18.9 is self-supplied and needs no extra external supply for the relay. It provides motor overload and phase-failure protection; the wider motor circuit still needs an appropriately designed protection system.
What auxiliary contacts are provided on the 1SAX111001R1105?
It has one normally closed trip contact and one normally open signalling contact. Check the applicable auxiliary-circuit ratings against the control circuit before selection.
Will the E16DU-18.9 fit my contactor?
ABB lists E16DU relays for B6 and B7 contactors, while other contactor variants require confirmation. Provide the full contactor and equipment model and serial number to verify the specific assembly before ordering.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.