no, the first number relates to intrusion by a solid object, even dust, the second figure is in relation to water ingress.
X2 would be protected from water from above, but may still allow penetration of solid objects from any angle, ie, front or sides, its unlikely that something "water tight" on the top would normally allow a solid object in from that direction either.
X2 would be protected from water from above, but may still allow penetration of solid objects from any angle, ie, front or sides, its unlikely that something "water tight" on the top would normally allow a solid object in from that direction either.
