08/07 AWB1230-1407D
I
Circuit-breaker equipment label
Identification of the control unit
– Mounting on horizontal surface
– Mounting on a vertical surface with mounting brackets 5 - 2
Safety clearances
Auxiliary conductor connection
– Assembly with control circuit connections
Connection of protective conductor
Changeover of fixed mounting circuit-breaker
into withdrawable circuit-breaker
Preparation of withdrawable circuit-breaker
– Inserting the circuit-breaker in withdrawable unit
– Position of the circuit-breaker in the withdrawable unit
– Release racking handle/withdraw racking handle
– Circuit-breaker to connected (CONNECT) position
Tripping by overcurrent release
Re-starting a tripped circuit-breaker
Switching off and discharging the storage spring
Frame sizes, dimension drawings
IZM(IN)...1-..., fixed-mounting, 3- and 4-pole
IZM(IN)...1-..., withdrawable, 3- and 4-pole
IZM(IN)...2-..., fixed-mounting, 3 and 4 pole
IZM(IN)...2-..., withdrawable, 3 and 4 pole
IZM(IN)...3-..., fixed-mounting, 3- and 4-pole
IZM(IN)...3-..., withdrawable, 3- and 4-pole
External current transformer for N-conductor
Terminal assignment, accessories
Auxiliary and control switches
Voltage release/electrical switch-on inhibit
Protection circuit for overcurrent release XZMU, XZMD
– With Breaker Status Sensor (XBSS) and metering
– Breaker Status Sensor (XBSS) only
– Overcurrent release for system protection XZMA
– Overcurrent release with selective protection XZMV
– Overcurrent release for universal protection XZMU
– Digital release XZMD (IZM…-D…)
– Earth-fault protection modules
– Removing the overcurrent release
– Internal self-test of the overcurrent tripping function
– Sealing and locking equipment
Additional communication features
– Retrofitting the internal neutral CT
– External current transformer for neutral conductor
Summary of Contents for IZM Series
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