Legrand 049926 DX3 Interrupteur différentiel 2P 25A 30mA type A

For installations where protection against earth leakage currents is non-negotiable, the Legrand 049926 DX3 RCCB stands out with its Type A sensitivity, detecting both AC and pulsating DC residual currents. Unlike basic AC-only devices, this 2-pole unit ensures reliable disconnection in modern circuits with electronic loads, preventing dangerous shocks and fire risks. Its 25 A rated current and 30 mA trip threshold make it a versatile choice for residential and commercial distribution boards.

Highlights

• Type A residual current protection (AC and pulsating DC)
• 2-pole design, 2 modules wide (35 mm) for DIN rail mounting
• Rated current 25 A, residual current 30 mA
• 6 kA conditional short-circuit rating
• Complies with EN 61008-1

In daily use

Installed on a standard DIN rail, the DX3 breaker fits neatly into any distribution board, occupying just two modules. Screw terminals accept rigid conductors from 1.5 to 25 mm² and flexible from 1.5 to 16 mm², ensuring secure connections. The device operates reliably across a wide temperature range from -25°C to +60°C, and its IP20 terminal protection (IP40 front when enclosed) suits typical indoor environments. The instantaneous tripping characteristic means faults are cleared without delay, minimizing exposure to hazardous currents.

Full specifications

• Product type: Residual Current Circuit Breaker (RCCB)
• Number of poles: 2P
• Rated current (In): 25 A
• Rated residual current (IΔn): 30 mA
• Residual current type: Type A
• Rated voltage: 230 V AC
• Frequency: 50/60 Hz
• Mounting: DIN rail (EN 60715)
• Modular width: 2 modules (35 mm)
• Rated conditional short-circuit current (Inc): 6 kA
• Rated impulse withstand voltage (Uimp): 4 kV
• Degree of protection: IP20 (terminals), IP40 (front in enclosure)
• Operating temperature: -25°C to +60°C
• Terminal capacity (rigid): 1.5–25 mm²
• Terminal capacity (flexible): 1.5–16 mm²
• Standards: EN 61008-1
• Tripping characteristic: Instantaneous
• Connection type: Screw terminals

Final note

With its robust construction and precise Type A protection, the Legrand 049926 is a dependable component for any electrician seeking compliance and safety in modern electrical installations.