AF26-30-11 (26 A, wide-range coil)
ABB · AF 09–38 frame
AF26 with the electronic wide-range coil (100–250 V or 24–60 V one part number) — very common in compressor panels with unstable control voltage.
Ratings
- AC-3 (400 V)
- 26 A / 11 kW
- AC-1
- 45 A
- Hp (3Φ)
- 7.5 HP @ 230 V · 15 HP @ 460 V
- Three-phase HP
- 7.5 HP @ 230 V · 15 HP @ 460 V
Coil data
- Available coil voltages
- Wide-range electronic: 24–60 V AC/DC or 100–250 V AC/DC per part number
- Inrush VA
- ≈ 4 W hold / 40 VA pull-in (electronically limited)
- Sealed (holding) VA
- ≈ 3–4 W
- Pickup voltage
- Down to 85% of the low end of the range
- Dropout voltage
- Managed electronically — tolerates dips to ≈ 70%
Typical measured coil resistance (±15%, ballpark)
Electronic coilNot meaningful — reads a circuit, not a winding (often 1–10 kΩ or open)
OL = open coil · near zero = shorted turns · coil-to-frame must read >1 MΩ.
Coil resistance checker
Pick the coil voltage, enter your meter reading across A1–A2 (coil disconnected), and compare it to the expected ballpark.
Ω
Generic mid-frame 110–120 VAC60 Ω–180 Ω
Readings 2× high usually mean heat damage and a coil near end of life. Ballpark only (±15%+); electronic wide-range coils (e.g. ABB AF) read misleading values — test those at rated voltage instead. Always measure coil-to-frame too: must be >1 MΩ.
Terminals & accessories
Power/coil terminals: Screw to 16 mm²; coil terminals A1/A2 with ferrite-free electronics module
Auxiliary contacts: 1NO+1NC built in; CA5 front and CAL side blocks expand
Companion overload: TF42 thermal or EF19 electronic overload, direct-mount
Cross-references
- Schneider LC1D25
- WEG CWB25
- Siemens 3RT2026
- Allen-Bradley 100-C23
- Eaton XTCE025C
Field notes
- Do NOT condemn an AF coil by resistance — the electronics make the reading meaningless. Apply rated control voltage and listen/see if it seals.
- The wide-range coil is the fix for chattering on generator power or a long control run; a standard AC magnet coil will keep dropping out.
- AF units draw very low sealed power, so a PLC output or small transformer can hold several without sag.
ABB resources
Links go to the manufacturer's current catalog or product page — model-specific pages are often retired, so these stay live.
Manufacturer documentation