ST 400 Radiant Pre-Heater The ST 400 is an analog, closed loop, temperature controlled radiant 400 W pre heater. The heating area is 140mm x 140mm (5.5” x 5.5”). This preheater is ideal for heavy PCBs and for area array applications as the medium wave IR delivers the most penetrating and even heating available. Power Requirements: 197-253 VAC, 50/60 Hz 425Watts max. Weight: 2.3Kg (5lbs.) Dimensions: 105mm H x 178mm W x 318mm D (4.1" H x 7" W x 12.5" D) Temperature stability: ± 3°C (± 5 °F) at idle temp. Absolute Temperature Stability: Meets or exceeds ANSI-J-STD Temperature range 37-205°C (100-400°F) Product Number 8007-0435