3TG1010-0AL2 K3M contactor F2B MCB with terminals Brand new in sealed bag KIT CONSISTS OF THE FOLLOWING: MAGNETIC CONTACTOR (Siemens 3TG1010-0AL2) Mains Breaker that says F2B Terminal block with cables with X13A on the plug This kit is specifically designed to control and protect the electric immersion heater of a non-Daikin (third-party) hot water cylinder when it's integrated with a Daikin Altherma heat pump system