Siemens 7 Digit, Analogue, Digital Counter, 50Hz, 115 V ac. Count Mode: Hours. Reset Method: No Reset. Mounting Type: Panel Mount. Count Direction: Up. Depth: 5.5mm. Cutout Width: 45mm. Cutout Size: 45 x 45 mm. Approvals: CE Certified, EAC Approval. Meter Type: Electronic. Series: SENTRON. MPN: 7KT5501