The NIBE K11 Connection Thermostat

part number 018893 is a control unit designed for use with R-50 immersion heaters. Here's a quick breakdown of its key features:

 Product Overview
•     Max Output: 10,500 W
•     Thermostat Type: 2-pole, 2-step thermostat
•     Temperature Limiter: 3-pole safety limiter

•     Application: Compatible with a wide range of NIBE heat pump models including:
•     F1126, F1140, F1145, F1155
•     F1226, F1240, F1245, F1255
•     F1330, F1345, F1355
•     F200, F2005, F2015, F2016, F2040
•     F370, F470, F730, F750
•     S1156, S1256, S2125, S735

 Physical Specs
•     Dimensions: 280 x 200 x 100 mm
•     Weight: 1.1 kg
•     Volume: 5.6 L