What's in the box:

1 X 1 Pcs Heavy High Current 12VDC 100A AMP 2.4W Continuous Work 4 Pins Car Truck Auto Automotive On Off Start Relay Switch Fixing Hole for Large Motor (black red), Black Red

This product uses 4.8W (30 minutes) and 2.4W continuous work. It can be applied to automobile and large vehicles such as truck, small sized crane, combine-harvester etc. And it is also widely used in automotive warm-up and startup switch.

Features:
12V 100A heavy current start relay.
4.8W for 30 minutes work, 2.4W for continuous work.
High quality: adopting red copper binding post, ensuring the maximum electric current can be transferred.
Contact voltage is 1A, while rated voltage is 12V.
Wide applications: It can be applied to automobile and large vehicles such as truck, small sized crane, combine-harvester etc.
It can be served as startup switch.

Specifications:
Contact load: 100A
Contact form: 1A
Contact material: AgSnO
Rated power: 12V
Max switching voltage: 14VDC
Max switching current: 100A
Pin number: 4 pin
Item size: 6.3 * 4.6 * 4.6cm / 2.5 * 1.8 * 1.8in (L * W * H)
Item weight: 100g / 3.5oz
Package size: 9 * 8 * 6cm / 3.5 * 3.1 * 2.3in (L * W * H)
Package weight: 113g / 3.9oz

Package list:
1 * Start relay