The Schneider Electric TeSys GC GC2540J5 is a modular contactor — 4-pole, controlled by a 12 V AC 50 Hz coil, rated for breaking and making 68 A at 400 V per IEC 61095. The unit ships as a set of 6 identical contactors, which is the standard packaging quantity for this order code. Rated for utilisation categories AC-7A and AC-7B, it is intended for resistive and inductive loads in lighting, heating, and motor-control circuits. Coil hold-in is reliable at 12 V AC nominal; drop-out occurs between 0.2 and 0.75 Uc (roughly 2.4 to 9 V AC), and pick-up requires 0.85 to 1.1 Uc (10.2 to 13.2 V AC) at temperatures below 50 °C. Operating time is 10 to 25 ms for opening, 10 to 30 ms for closing — fast enough for most lighting and motor switching but not for precision synchronisation.
The 36 mm width (2 x 18 mm modules) fits compactly in consumer-unit or small-panel layouts. Screw-clamp terminals accept power conductors up to 6 mm² solid or flexible (with or without ferrule), and control-circuit conductors up to 2.5 mm². Tightening torque is 0.8 N.m for both power and control terminals — a common value that a standard screwdriver with a torque-limiting handle can set. IP20 protection on the contactor body (finger-safe), rising to IP40 when installed in an enclosure per VDE 0106. Operating altitude is rated to 3000 m without derating.
Compliance documentation covers IEC 61095 and IEC 60947-5 standards. The contactor carries a rated insulation voltage of 500 V per both IEC 61095 and VDE 0110. Associated fuse rating for the power circuit is 25 A gL at voltages up to 440 V. Electrical durability is 100,000 cycles under both AC-7A and AC-7B duty; mechanical durability is 1,000,000 cycles. Maximum operating rate is 300 cycles per hour at 50 °C. Heat dissipation is 1.6 W per pole at 50/60 Hz, with an average power-circuit impedance of 2.5 mOhm at Ith 25 A.