Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SBE121111R0420 — Installation Contactor
contactorPart number: 1SBE121111R0420
ABB 1SBE121111R0420 is an ESB20-20N-04 two-pole installation contactor with two normally open main contacts and a 110 V AC/DC control circuit. It is rated 20 A for AC-1 and AC-7a loads. At 230 V single-phase, the AC-3 and AC-7b rating is 9 A. The unit is 18 mm wide, 85 mm high and 65 mm deep.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SBE121111R0420 |
| Category | Electrical & controls |
| Product Net Width | 18 mm |
| Product Net Depth / Length | 65 mm |
| Product Net Height | 85 mm |
| Product Net Weight | 0.14 kg |
| Number of Main Contacts NO | 2 |
| Number of Main Contacts NC | 0 |
| Number of Auxiliary Contacts NO | 0 |
| Number of Auxiliary Contacts NC | 0 |
| Number of Poles | 2P |
| Rated Operational Voltage | Main circuit: 250 V AC; 220 V DC |
| Rated Frequency (f) | Control circuit: DC, 50, 60 or 400 Hz; main circuit: DC, 50 or 60 Hz |
| Rated Operational Current AC-1 (I e ) | (NO) 20 A |
| Rated Operational Current AC-3 (I e ) | (230 V) Single Phase, NO 9 A |
| Rated Operational Current AC-7a (I e ) | (NO) 20 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 4.6 kW |
| Rated Operational Power AC-3 (P e ) | (230 V) Single Phase, NO 1.3 kW |
| Rated Operational Power AC-7a (P e ) | (230 V) Single Phase, NO 4.6 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 ) | 400 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 ) | 110 V AC/DC |
| Power Loss | at Rated Operating Conditions AC-1 per Pole 1.4 W |
| Published component type | Installation Contactor |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Ambient operating temperature | -25 to +55 °C |
| Degree of protection | IP20 |
| Width in modular spacings | 1 |
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 coil voltage does ABB 1SBE121111R0420 require?
The ESB20-20N-04 has a rated control voltage of 110 V AC/DC. Check the control supply and the part number on the existing device before ordering.
How many contacts does this installation contactor have?
It has two normally open main contacts and no normally closed main contacts. The two-pole configuration is relevant when checking a replacement.
Is the 20 A rating suitable for every load, including motors?
No. The 20 A rating is for AC-1 and AC-7a. For AC-3 and AC-7b, the listed rating is 9 A at 230 V single-phase, with 1.3 kW rated power. Match the utilization category, voltage and load to the application.
What are the dimensions and operating temperature of the ESB20-20N-04?
The unit measures 18 mm wide, 85 mm high and 65 mm deep, and its listed operating ambient temperature is -25 to +55 °C. Check available panel space and operating conditions before selecting it.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.