What the 1500W rating means for your rail
The 1.5KE130A R0G: For a 24V or 48V DC bus, the 111V reverse standoff voltage means the part stays off the line until a transient exceeds that threshold, then clamps at 179V maximum while shunting 8.7A peak pulse current. The 124V minimum breakdown voltage gives a guard band: the rail must never see sustained voltage above 111V, or the TVS begins conducting and risks thermal runaway.
Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE130A R0G mounts directly into a PCB or can be hand-wired. The axial body is 9.1 mm long typical — the leads are tin-plated copper and accept standard 0.8 mm diameter holes. No power line protection means it is not intended for AC mains clamping; it is a DC rail or signal-line protector.