Overview
The LC1K098P7S335 is a Schneider TeSys K contactor, 4-pole configuration with 2 NO + 2 NC power contacts, rated for 20 A switching current in AC-1 utilization category. The coil is 230 VAC at 50/60 Hz, drawing 4.5 W holding power, and the main circuit is rated up to 690 V supply voltage. It mounts on DIN rail or plate and carries IP20 finger-safe protection.
Function & operation
The contactor uses an AC-operated coil without built-in suppression; the 4.5 W heat dissipation (1.3 W at coil) means the panel temperature rise is modest even under continuous hold-in. The 2 NO + 2 NC pole arrangement suits control of dual-speed motors, reversing starters, or loads requiring separate normally-open and normally-closed paths in the same frame. Switching current of 20 A at AC-1 covers resistive and lightly inductive loads up to 690 V line-to-line. The 10 ms operating time is fast enough for most sequencing but not for high-speed synchronous switching — plan for mechanical life of 10 Mcycles and electrical life of 0.16 Mcycles at rated load.
Applications
TeSys K contactors of this size are common in panel building for motor control centres, lighting contactor panels, and HVAC equipment where 4-pole switching is needed. The 20 A AC-1 rating also suits resistive heating loads, transformer primary switching, and capacitor bank switching with appropriate derating. The compact 45 mm width fits tightly packed DIN-rail assemblies.
Market & positioning
Within the TeSys K range, the LC1K098P7S335 fills the niche for 4-pole contactors with a mixed NO/NC contact arrangement — most peers offer 4 NO or 3 NO + 1 NC. The 230 VAC coil is a standard voltage for European and Asian panels, and the screw-clamp terminals accept up to 4 mm² solid or 2.5 mm² flexible with ferrule, matching typical control wiring practices.