c3controls IEC terminal blocks have been designed, manufactured and tested to meet the specifications and strict requirements of applicable UL, CSA, and IEC standards and are rated for Code 1, factory wiring only, and Code 2, both factory and field wiring. C3controls' full line of IEC terminal blocks are available in a wide variety. Screw clamp is available from 20A to 232Amp, and spring clamp from 20A to 50Amp. Miniature panel mount is also available from 20A to 35A, in both spring and screw clamp.