•IEC 60439-1 (1999) •IEC 60439-1 (2004-04) •TIS 1436-2540   MTLV400 Series is a type-tested switchgear and controlgear assembly (TTA). The switchboard was designed and sent for type-testing at CESI laboratory in Italy. It successfully passed the set of tests as per IEC 60439-1. Type-testing verification • Verification of temperature rise limits • Verification of dielectric properties • Verification of short circuit withstand strength • Verification of effectiveness of protective circuit • Verification of clearances ad creepage distances • Verification of mechanical operations • Verification of degree of protection