This product is a 15A fuse embedded in a waterproof fuse holder and features connector cables on each end.
See image in photo gallery for technical specifications. This Connector compatible fuse holder + fuse is designed to provide over-current protection for solar arrays. The use of a fuse can protect your solar array from unnecessary damage from an over-current event.

Specifications:
15A Solar In-Line Fuse Holder Waterproof w/ Fuse
Rated Current: 15A
Rated Voltage: 1000 V DC
Fuse Can Replace
Insulation Material: PPO
Net Weight: 53g
Dimensions: 4.8 x 0.8 x 0.8 In
Test Voltage: 6000V (50Hz,1 min)
Degree of Protection: IP2*/IP67
Contact Resistance of Plug Connector:1mΩ
Insertion Force / Withdrawal Force: ≤50N / ≥50N
Contact Material: Copper, Silver Plated
Connection type: adapter (it is very convenient)
Operation Temperature range: -40 to +125 Cel. Degrees

Package Included:
1 x Fuse Photovoltaic Connectors

Safety tips
Caution: Do not open this holder under LOAD
For protection against electric shock, PV connectors must be isolated from the power supply while being assembled or disassembled.
The end product must provide protection from electric shock.
Unplugging under load: PV plug connections must not be unplugged while under load. They can be placed in a no load state by switching off the DC/AC converter or breaking the AC circuit interrupter. Plugging and unplugging while under voltage is permitted.
Disconnected connectors should be protected from dirt and water with sealing caps.