Part identification and fit
The GC2540F5 is a Schneider Electric TeSys GC modular contactor, a 4-pole device with a 110 V AC 50 Hz control circuit. It is rated for utilisation categories AC-7A and AC-7B, meaning it is specified for motor control, lighting, and resistive heating loads. The rated breaking capacity is 68 A at 400 V for the power circuit, per IEC 61095, which governs contactors for household and similar fixed-electrical installations.
Depth is 62.5 mm and height 85 mm, so it fits standard distribution board cutouts. The screw clamp terminals accept up to 6 mm² solid or flexible cable on the power side, and 2.5 mm² on the control side, with a uniform tightening torque of 0.8 N.m. IP20 protection on the device body, IP40 when enclosed per VDE 0106.
Performance and durability
Mechanical durability is rated at 1,000,000 cycles, with electrical durability at 100,000 cycles for both AC-7A and AC-7B categories. The 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 impedance of 2.5 mOhm for the power circuit. The inrush power draw is 34 VA at 50 Hz and 20 °C.