The Schneider Electric TeSys K LC1K12016L7 is a 3-pole contactor rated for 12 A in AC-3 and AC-3e utilisation categories at 440 V, with a 200…208 V AC 50/60 Hz coil and one normally-closed instantaneous auxiliary contact. This is the control-voltage variant for North American 208 V line supplies or 200 V nominal systems. The 12 A AC-3 rating (motor switching) is the headline figure for sizing: it handles motor loads up to roughly 5.5 kW at 400 V three-phase. The AC-1 resistive rating supports 20 A continuous, and the AC-4 inching/plugging duty is 72 A but with sharply reduced electrical endurance — 0.02 Mcycles versus 1.3 Mcycles for AC-3. For a motor-control BOM, the AC-3e rating (enhanced) matches the same 12 A, reflecting the IEC/EN 60947-4-1 standard for contactors used with electronic motor starters.
For a BOM freeze or line-down replacement, the buyer should verify the exact control voltage and auxiliary configuration before committing. The 200…208 V AC coil is specific; a 240 V or 110 V coil variant will not drop in without a control-circuit change.
The contactor carries multi-jurisdiction approvals: EN/IEC 60947-4-1 (Europe), UL 60947-4-1 (US), CSA C22.2 No 60947-4-1 (Canada), JIS C8201-4-1 (Japan), and GB/T 14048.4 (China). It also meets the glow-wire and flammability requirements of IEC 60335-1 Clause 30.2 and IEC 60335-2-40 Annex JJ for appliance applications. Flame retardance is V1 per UL 94.
Mechanical & Electrical Endurance
Electrical endurance varies by duty: 1.3 Mcycles at 12 A AC-3, 0.3 Mcycles at 20 A AC-1, and 0.02 Mcycles at 72 A AC-4. The B10d safety reliability figure is 1,369,863 cycles under nominal load per EN/ISO 13849-1, which matters for safety-circuit applications where the contactor is part of a monitored guard loop.
Physical Integration
The ring-lug terminals accept up to 7 mm outer diameter lugs, torqued to 0.8…1.3 N·m. IP2X finger protection per VDE 0106 is standard; no additional cover needed for basic touch safety.