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How to change the trip setting on a Magnum or NRX breaker

The breaker trip value is the long delay setting as set in the trip unit. The long delay/trip setting is a multiple of the rating plug value.

Magnum 520 series trip unit long delay setting options: 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, 1.0

NRX 520 series trip unit long delay setting options: 0.5, 0.6, 0.7, 7.5, 0.8, 0.9, 0.95, 1.0

This is set using the Long Delay Setting dial on the front of the trip unit

Magnum 1150 trip unit long delay setting options: 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0

NRX 1150 trip unit long delay setting options: 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0

Set the LONG PU setting in the PGM SET menu (PGM SET -> CURRENT -> LSIG -> LONG PU)

NRX PXR trip unit long delay setting options: 0.4, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 0.95, 0.98, 1.0

This is set using the Long Pickup dial on the front of the trip unit