The LC1K0901K7: This is a 3-pole contactor from the TeSys K range, rated 9 A in AC-3 and AC-3e utilisation categories at ≤440 V — the standard duty for squirrel-cage motor switching. The 9 A AC-3 rating governs the motor full-load current it can handle; for a 400 V three-phase induction motor, this corresponds to approximately 4 kW. The 100 V AC coil (50/60 Hz) pulls 30 VA inrush and holds at 4.5 VA, dissipating 1.3 W. The single normally-closed (1 NC) auxiliary contact is built in, with a minimum switching capability of 5 mA at 17 V for signalling circuits — adequate for PLC input status feedback. Electrical durability varies by load: 1.3 million cycles at 9 A AC-3, 160,000 cycles at 20 A AC-1 (resistive), and only 20,000 cycles at 54 A AC-4 (plugging/inching). For safety circuit integration, the B10d value is 1,369,863 cycles under nominal load per EN/ISO 13849-1, rising to 20 million cycles under purely mechanical (no-load) operation.
Compliance & Certification
The contactor carries full compliance with EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, JIS C8201-4-1, and GB/T 14048.4. It also meets IEC 60335-1 Clause 30.2 and IEC 60335-2-40 Annex JJ for appliance applications. Flame retardance is V1 per UL 94, and the part is certified to NF F 16-101/102 for railway fire behaviour. The protective treatment is TC (tropical climate) per IEC 60068 and DIN 50016.
Mechanical Integration
Screw-clamp terminals accept 1.5 to 4 mm² solid or 0.34 to 2.5 mm² flexible with ferrule, with a strip length suitable for standard terminal blocks. Operating altitude is 2000 m without derating; shock resistance is 10-15 Gn depending on axis and contactor state.