Kripal DZ47-125 2P miniature circuit breaker (MCB)

Description

The Kripal DZ47-125 2P is a 2-pole, 125 A miniature circuit breaker designed for AC systems (230/400 V, 50/60 Hz), suitable for heavier circuits, offering durable protection and standard DIN‐rail mounting. It fits industrial/commercial installations where a robust MCB is required.

• Because it’s rated at 125 A and 2-pole, this breaker is suitable for fairly heavy loads (e.g., motors, distribution circuits, feeders) rather than tiny branch circuits.

• Ensure the supply voltage and number of poles match your system: if your system is single‐phase you may need a 1P version; for two lines you use 2P.

• Check ambient temperature, derating factors, panel capacity and busbar compatibility when installing higher rated MCBs.

• Verify the breaking capacity is adequate for the fault level where you install it — if your system fault current is higher than the breaker’s rated interrupting capacity, the breaker may not protect effectively.

• Look for proper brand documentation (datasheet) to confirm parameters like temperature range, mechanical life, electrical life, mounting dimensions, terminal types, and approval marks (CE, IEC, etc.).

• For replacements: ensure the frame/busbar spacing and DIN rail footprint match the existing one; higher rated MCBs may be physically larger or require different accessories.