LC1D18 (TeSys D, 18 A)
Schneider / Telemecanique · D-line D09–D38 frame
18 A AC-3 / 7.5 kW @ 400 V — the sweet spot for 7.5–10 HP shop compressors on 460 V and 5 HP on 230 V. Same footprint and accessories as the D09.
Ratings
- AC-3 @ 400 V
- 18 A (7.5 kW)
- AC-1 (resistive)
- 32 A
- Hp (3Φ)
- ≈ 5 HP @ 230 V · 10 HP @ 460 V · 15 HP @ 575 V
- Hp (1Φ)
- ≈ 1 HP @ 115 V · 2–3 HP @ 230 V
- Single-phase HP
- ≈ 1 HP @ 115 V · 2–3 HP @ 230 V
- Three-phase HP
- ≈ 5 HP @ 230 V · 10 HP @ 460 V · 15 HP @ 575 V
Coil data
- Available coil voltages
- Same B7/G7/P7/U7/V7 suffix system as LC1D09
- Inrush VA
- ≈ 70 VA (60 Hz)
- Sealed (holding) VA
- ≈ 7–8.5 VA
- Pickup voltage
- 85–110% of rated
- Dropout voltage
- 20–75% of rated
Typical measured coil resistance (±15%, ballpark)
24 VAC (B7)≈ 5–9 Ω
120 VAC (G7)≈ 130–220 Ω
230 VAC (P7)≈ 500–850 Ω
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
This model (24 VAC (B7) table value)5 Ω–9 Ω
Generic small-frame 24 VAC8 Ω–16 Ω
OL = open coil. 0–2 Ω = shorted turns (often from a cooked transformer). 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: 1/3/5 in, 2/4/6 out; coil A1/A2
Auxiliary contacts: 1 NO built in; LADN front blocks stack to 4 additional
Companion overload: LRD14 (7–10 A) or LRD16 (9–13 A) depending on motor FLA
Cross-references
- ABB A16 / AF16
- Siemens 3RT2024/25
- Allen-Bradley 100-C16
- Eaton XTCE018C
- WEG CWB18
Field notes
- Check the utilization category printed on the side: AC-3 rating is for squirrel-cage motors; the same contactor in AC-4 (plugging/jogging) is only good for a fraction of the amps.
- Pair with the correct LRD overload — the overload dial setting, not the contactor size, protects the motor.
Schneider / Telemecanique resources
Links go to the manufacturer's current catalog or product page — model-specific pages are often retired, so these stay live.