Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAE231111R0140 — Installation Contactor
contactorPart number: 1SAE231111R0140
ABB 1SAE231111R0140 (ESB25-40N-01) is a four-pole installation contactor with four normally open main contacts and a 24 V AC/DC control circuit. It is rated 25 A for AC-1 duty; its AC-3 motor rating is 9 A at 230 V single-phase or 400 V three-phase. The unit measures 36 × 85 × 65 mm (W × H × D), weighs 0.245 kg and has screw terminals. It provides automatic switching without a manual operating slider and has IP20 protection.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAE231111R0140 |
| Category | Electrical & controls |
| Product Net Width | 36 mm |
| Product Net Depth / Length | 65 mm |
| Product Net Height | 85 mm |
| Product Net Weight | 0.245 kg |
| Number of Main Contacts NO | 4 |
| Number of Main Contacts NC | 0 |
| Number of Auxiliary Contacts NO | 0 |
| Number of Auxiliary Contacts NC | 0 |
| Number of Poles | 4P |
| Rated Operational Voltage | Main circuit: 220 V DC; 400 V AC |
| Rated Frequency (f) | Control circuit: DC, 50 Hz, 60 Hz, 400 Hz; main circuit: DC, 50 Hz, 60 Hz |
| Rated Operational Current AC-1 (I e ) | (NO) 25 A |
| Rated Operational Current AC-3 (I e ) | (230 V) single-phase, NO: 9 A; (400 V) three-phase, NO: 9 A |
| Rated Operational Current AC-7a (I e ) | (NO) 25 A |
| Rated Operational Current AC-7b (I e ) | (230 V) Single Phase, NO 9 A |
| Rated Operational Power AC-1 (P e ) | (230 V) Single Phase, NO 5.8 kW |
| Rated Operational Power AC-3 (P e ) | (230 V) single-phase, NO: 1.3 kW; (400 V) three-phase, NO: 4 kW |
| Rated Operational Power AC-7a (P e ) | (230 V) Single Phase, NO 5.8 kW |
| Rated Operational Power AC-7b (P e ) | (230 V) Single Phase, NO 1.3 kW |
| Rated Breaking Capacity AC-3 | 8 x Ie / AC-3 |
| Rated Making Capacity AC-3 | 10 x Ie / AC-3 |
| Rated Short-time Withstand Current Low Voltage (I cw ) | at 40 °C Ambient Temp, in Free Air, from a Cold State 10 s 72 A |
| Rated Insulation Voltage (U i ) | 500 V |
| Rated Impulse Withstand Voltage (U imp ) | 6 kV |
| Maximum Electrical Switching Frequency | (AC-1) 300 cycles per hour |
| Coil Operating Limits | (acc. to IEC 60947-4-1) 0.85 ... 1.1 x Uc (at θ ≤ 55 °C) |
| Rated Control Circuit Voltage (U c ) | 24 V AC/DC |
| Power Loss | at Rated Operating Conditions AC-1 per Pole 2 W |
| Published component type | Installation Contactor |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Ambient Air Temperature | Operation: -25 to +55 °C |
| Terminal Type | Screw terminals |
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
Does ABB 1SAE231111R0140 need a 24 V AC or DC control supply?
This ESB25-40N-01 version has a 24 V AC/DC control circuit. ABB lists DC and 50, 60 and 400 Hz AC control operation, so it is not restricted to 400 Hz. The control voltage is separate from the main-contact voltage rating; do not use the 400 V main-circuit rating as the coil supply voltage.
Is the ESB25-40N-01 rated for a 25 A motor load?
The 25 A rating applies to AC-1 loads, not AC-3 motor duty. ABB specifies 9 A AC-3 at both 230 V single-phase and 400 V three-phase, with corresponding motor power ratings of 1.3 kW and 4 kW. Select against the actual load category, voltage and motor nameplate rather than the 25 A headline rating. For an equipment replacement, provide the equipment model, serial number and existing contactor markings for verification.
What contact arrangement and manual switching does ABB 1SAE231111R0140 provide?
It is a four-pole contactor with four normally open main contacts and no normally closed main contacts (4NO/0NC). It uses automatic control and has no manual operating slider. Check the original circuit diagram before ordering if the installation needs normally closed contacts or a manual override.
What are the dimensions and enclosure protection of the ESB25-40N-01?
ABB gives overall dimensions of 36 mm wide, 85 mm high and 65 mm deep, with a net weight of 0.245 kg. It occupies two modular spacings. Its protection rating is IP20; this is not a weatherproof enclosure rating. The published 58 mm built-in depth is a different measurement from the 65 mm overall depth.
Does repeated clicking of an ESB25-40N-01 in a solar heater control system prove it is faulty?
Not by itself. In a forum discussion naming this exact model, a user reported repeated switching under solar-surplus control but stable operation with a continuous 24 V supply. Participants suspected the controller switching off again as the heater reduced the available surplus. This is an unverified installation report, not a confirmed product defect or approved inverter compatibility. Have a qualified electrician check the control signal, supply and controller settings before replacing the contactor.
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Research information may be outdated. Confirm fitment and specifications with our team before ordering.