HGA261255 Schneider Electric Electronic Components

Square D by Schneider Electric HGA261255 is a Moulded Case Circuit Breaker (MCCB) within the PowerPacT HGA sub-range, designed as a PowerPact H-Frame 150 TMD 2P 125A 600Vac/500Vdc 18kA I-line CA 80% rated. It features a 2-pole (2P) configuration with thermal protection for overload and magnetic protection for short-circuit scenarios. The rated current is 125A, with a rated insulation voltage (Ui) of 750 V and rated voltages of 600Vac 600Y/347Vac for AC and 500Vdc for DC. This breaker mounts on I-line with line side isolated plug-on jaws plus a mechanical I-Line bracket mechanism, ensuring a robust attachment. It has a net height of 163 mm, a width of 104 mm, and a depth of 86 mm, with an IP40 degree of protection. The operating mode is manual toggle, with over-current protection settings fixed at 125A and short-circuit protection settings fixed at 900A hold current and 1700A trip current. The rated operating voltage (Ue) is 690 V, with a rated impulse voltage (Uimp) of 8 kV. The trip current rating is 125 AT, with a frame current rating of 150 AF. Its short circuit breaking rating varies by voltage, including 65kA at 240Vac, 35kA at 480Vac and 480Y/277Vac, 18kA at 600Vac and 600Y/347Vac, and 20kA at 250Vdc and 500Vdc, all according to UL489 standards. The trip unit type is thermal-magnetic (fixed) with no display, and it falls under utilisation category A.

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