Description
Main
Range MasterPacT
product name MasterPact MTZ2
Device short name MTZ2 12 H1
Product or component type Circuit breaker
Device application Power distribution protection
Poles description 3P
Control unit Without control unit
Product compatibility control unit MicroLogic 2.0 X
control unit MicroLogic 5.0 X
control unit MicroLogic 6.0 X
control unit MicroLogic 7.0 X
control unit MicroLogic 2.0 Xi
control unit MicroLogic 5.0 Xi
control unit MicroLogic 6.0 Xi
control unit MicroLogic 7.0 Xi
[In] rated current 1250 A at 40 °C
Performance type H1 66 kA 415 V AC
[Ue] rated operational voltage 690 V AC 50/60 Hz
Suitability for isolation Yes conforming to EN/IEC 60947-2
Selectivity category Category B
Control type Push-button
Mounting mode Fixed
Complementary
[Icu] rated ultimate short-circuit
breaking capacity
66 kA at 220/415 V AC 50/60 Hz
66 kA at 440 V AC 50/60 Hz
66 kA at 500/525 V AC 50/60 Hz
66 kA at 660/690 V AC 50/60 Hz
[Ics] rated service breaking
capacity
66 kA at 220/415 V AC 50/60 Hz
66 kA at 440 V AC 50/60 Hz
66 kA at 500/525 V AC 50/60 Hz
66 kA at 660/690 V AC 50/60 Hz
[Icw] rated short-time withstand
current
66 kA 0.5 s
66 kA 1 s
36 kA 3 s
[Icm] rated short-circuit making
capacity
145 kA 220/415 V AC at 50/60 Hz
145 kA 440 V AC at 50/60 Hz
145 kA 500/525 V AC at 50/60 Hz
145 kA 660/690 V AC at 50/60 Hz
Sensor rating 630 A
800 A
1000 A
1250 A
[Ui] rated insulation voltage 1000 V AC 50/60 Hz
[Uimp] rated impulse withstand
voltage
12 kV
Power dissipation in W 100 W
Maximum breaking time 25 ms
Maximum closing response time 70 ms
Mounting support Rails
Base plate
Upside connection Front
Rear
Downside connection Front
Rear
Connection pitch 115 mm
Mechanical durability 25000 cycles with periodic preventive maintenance
Electrical durability 10000 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-2
10000 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-2
AC-23A: 10000 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-3
AC-23A: 10000 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-3
AC-3: 6000 cycles 440/690 V AC 50/60 Hz conforming to EN/IEC 60947-3
Height 352 mm
Width 422 mm
Depth 300 mm
Net weight 50 kg
Standards EN/IEC 60947-1
EN/IEC 60947-2
EN/IEC 60947-2 Annex H
IEC 61557-12
Product certifications CE
IECEE CB Scheme
Environment
IP degree of protection IP30 conforming to EN 60529
Pollution degree 3 conforming to IEC 60947-1
Ambient air temperature for
operation
-25…70 °C
Ambient air temperature for
storage
-40…85 °C
Operating altitude 0…2000 m without derating
2000…5000 m with derating
