- (Adnkronos) – The SURLOK Plus 5.7mm, 12.0mm, and 14.0mm allows for higher amperage/voltages with smaller envelopes ENDICOTT, N.Y., Dec. 14, 2023 /PRNewswire/ — Amphenol Industrial Operations, a global leader in interconnect systems, has enhanced its SURLOK Plus series with a more powerful connector with a voltage capacity of 1500V DC. The SURLOK Plus allows customers to carry higher voltages within the same envelope as its 1000V DC antecedent. Technical Specifications Ideal for use in the energy storage