The MGP6303x, MGP6304X, MGP4003X, & MGP4004X moulded case circuit breakers come with Micrologic 2.3 fitted as standard.
The MGP4003X5E, MGP4004X5E, MGP6303X5E, and MGP6304X5E moulded case circuit breakers come with Micrologic 5.3E fitted as standard.
The MGP4003X5E, MGP4004X5E, MGP6303X5E, and MGP6304X5E moulded case circuit breakers come with Micrologic 5.3E fitted as standard.