Siemens 3.5 → 5 A SIRIUS Motor Protection Circuit Breaker

Maximum rated current 100A (45kW @ 400V a.c.)
Rated operational voltage: 690V
Short-circuit proof to 50kA @ 400V a.c.
Maximum switching frequency; 15 operations/hour
Mechanical life; 10⁵ operations
Ambient temperature range; –20 to +60 ° C
Long term stability
Manual reset
Lockable in off position

UL, CSA

IEC947, VDE0990, EN60947

Give your electric motors a break from faults using this motor protection circuit breaker from Siemens. It cuts off power to an attached circuit in the event of a hazard, helping to prevent machinery malfunctions. As the unit also detects phase failure and offers protection against short circuits, it's a real all-rounder. Thanks to its long mechanical service life of 100,000 switching cycles, this device stays with you for the long haul. A broad operating voltage range of 20 to 690V AC means it's compatible with a wide variety of applications including HVAC systems and automotive manufacturing.

• Surge voltage resistance rating of 6kV to handle powerful spikes
• Screw terminals for secure wiring using just a screwdriver
• Built-in toggle switch for convenient control
• Wide operating temperature range between -20°C and +60°C for use in harsh environments

This MPCB is easy to mount by simply screwing or snapping it onto a DIN rail. For a flexible setup, you can install it in any position.