Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Installation is flexible and easy thanks to modular function groups. Notes: Combination of separate delay unit and special release. Can be used for EMERGENCY STOP devices in conjunction with EMERGENCY STOP button. Not UL/CSA approved. Special release for combination with separate delay unit. Delay unit UVU-NZM is also required. Cannot be installed at the same time as separate leading auxiliary switch NZM. XHIV or shunt release NZM.-XA. Cannot be used in conjunction with remote operator NZM.-XR. NZM1, 2, 3: Lead of auxiliary contacts when switching on and off (manual operation): approx. 20 ms. NZM4: Lead of auxiliary contacts when switching on (manual operation): approx. 90 ms. Connection with 3 m loose connecting cables instead of screw connection. Without auxiliary switch. Can be used for NZM4(-4) N(S)4(-4)