TR28 series control and safety or isolating transformers Control and safety or isolating single-phase transformers supply high instantaneous power for the correct operation of contactors and other control and switchgear. Features: Thermal class: B (130°C) Class: Class I Frequency: 50/60 Hz DIN rail mountable (up to 400VA) Secondary voltages: 12 – 24V (or) 115 – 230V Protection degree: IP20 protection (finger safe) Dielectric strength: Primary – secondary > 4.5kV Standards: IEC/EN 61558-1, IEC/EN 61558-2-2 /-2-4 /-2-6 Serial-parallel secondary bridge pieces for ease of connection Primary voltages: 240V – 400V – 525V (with regulation taps + and – 20V) High capacity clamp terminals (10 mm2 up to 400VA / 25 mm up to 1250VA) High flexibility – several primary rated voltages (with regulation taps +20V or -20V) SERIES TR 28 series DESCRIPTION Control and safety transformer PRIMARY VOLTAGES 240V – 400V – 525V (with regulation taps + and – 20V) SECONDARY VOLTAGES 12 – 24V THERMAL CLASS B (130°C) TYPE Class 1 FREQUENCY 50/60 Hz PROTECTION INDEX IP20 POWR (VA) 25°C 1250 POWR (VA) 40°C 1000 INRUSH (VA) 3300 WEIGHT (KG) 14.4 DIMENSIONS (MM) (H) 177 x (W) 150 x (D) 183
1250VA 240/400/525-12/24V T/FORM
Control and safety transformers
ElectroMechanica
681250040