3VA5112-1MH32-0AA0
Siemens
The Siemens 3VA5112-1MH32-0AA0 is a 3-pole molded-case circuit breaker designed for starter protection. It offers a 125A operational current and a 690V AC rated operating voltage.
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The Siemens 3VA5112-1MU32-0AA0 is a 3-pole molded-case circuit breaker from the 3VA5 series, specifically designed for starter protection applications. It operates with a rated insulation voltage of 800V and an operating voltage of 690V AC.
This circuit breaker features an operational current of 125A at 40°C, with derated values at higher temperatures up to 70°C. Its breaking capacity according to IEC 60947 standards is significant, with a maximum short-circuit current (Icu) of 150kA at 240V and 70kA at 415V. The operating short-circuit current (Ics) is also 150kA at 240V and 70kA at 415V.
Mechanically, the unit has a height of 140mm, width of 76.2mm, and depth of 76.5mm. It is designed for DIN rail mounting and features front connections with nut keeper kits. The electrical endurance is rated at 8,000 switching cycles at 380/415V AC-1 and 4,000 cycles at 690V AC-1. The mechanical service life is typically 20,000 switching cycles.
This breaker is UL 489 listed and HACR Type. It has a maximum power loss of 30W, with an active power loss of 10W per pole under rated conditions. The Siemens SENTRON 3VA5112-1MU32-0AA0 is built for reliable circuit protection in various industrial and commercial applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current is 125A at 40°C, 122A at 45°C, 119A at 50°C, 117A at 55°C, 114A at 60°C, 112A at 65°C, and 109A at 70°C.
The rated insulation voltage is 800V, and the operating voltage at AC is 690V.
The maximum short-circuit current (Icu) breaking capacity is 70kA, and the operating short-circuit current (Ics) is 70kA at 415V.
This circuit breaker has 3 poles.
The mounting type is DIN Rail.
The typical mechanical service life is 20,000 switching cycles.