ABB B274802 - Residual Current Device 2P 25A 30mA Type B

ABB B274802 - Differential Lock 2P 25A 30mA Type B - Advanced Protection for Electrical Installations

Maximum security for residential, commercial and industrial applications

The ABB Differential Lock B274802 is a reliable and safe solution for the protection of electrical installations. This device provides high protection Type B, capable of detecting alternating leakage current (AC), pulsating direct current (A) and pure direct current (B), making it ideal for advanced applications such as inverters, photovoltaic systems and electric vehicle charging stations.

Designed by ABB, a leader in electrical safety, the DDA 202 25A 2P Type B 30mA ensures maximum reliability and compliance with international safety standards, guaranteeing continuous protection for people and equipment.

Main features:

• Order Code: ABB B274802
• Type: Differential block for circuit breakers
• Number of poles: 2P
• Current rating: 25A
• Differential sensitivity: 30mA
• Type of protection: Type B (protection for AC, A and B currents)
• Rated voltage: 230V AC
• Number of DIN modules: 4
• Mounting: DIN rail

Main advantages:

✅ Advanced protection for photovoltaic systems, EV charging stations and sensitive electronic devices
✅ Differential sensitivity of 30mA, ideal for low-intensity leakage protection
✅ Compatibility with ABB S 200 and M 200 series circuit breakers
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