GTB040PUD26R N1 from Delta Electronics is a FAN BLWR CENT 404X257MM 400VAC
Series: GTB
Base Number: GTB040
Package: Box
Standard Package: 12
RoHS: ROHS3 Compliant
REACH: Unaffected
MSL: Unlimited
ECCN: EAR99
HTSUS: 8414.59.6590
Fans, Thermal Management / Fans / AC Fans