SIEMENS Control Relay 3TH2040-0BB4 by Siemens Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $45.00 1 IN STOCK 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart SIEMENS Control Relay 3TH2040-0BB4 AC-11: 4A; 220V 24VDC Coil 4NO