Gigabit PoE injector and Gigabit Ethernet Surge Protector

In the brochure of the new RBGESP (https://i.mt.lv/cdn/rb_files/GESP-190528133701.pdf) it is said

PoE support: Yes, IEEE 802af/at

How about protecting a device that is powered with passive PoE using RBGPOE (https://mikrotik.com/product/RBGPOE)?

I want to achive this:

RB3011 —> PoE injector ========= 40m =========> Surge protector ==> NetMetal 5SHP

Is there any risk to damage the protector and would this work?

Thanks!