Description
ABB B273212 - Differential Lock 4P 25A 300mA Type B - Advanced Protection for Electrical Installations
Maximum security for industrial, commercial and plant applications with advanced electronics
The ABB Differential Block B273212 is an essential device in the DDA 200 series, designed to provide high protection against current leakage. Thanks to the Type B protection, it can detect alternating leakage current (AC), pulsating direct current (A) and pure direct current (B), up to frequencies of 1kHz, with high immunity to intemperate trips (APR - Anti Perturbation).
This feature makes it particularly suitable for photovoltaic systems, inverters, variable speed motors, electric vehicle charging stations and systems with advanced electronics, offering reliable and long-lasting protection.
Designed by ABB, a leading company in the electrical safety industry, the DDA204 B 25A 4P 300mA guarantees maximum reliability and compliance with international safety standards, protecting plants and people with advanced performance.
Main features:
- Order Code: ABB B273212
- Type: Differential lock for circuit breakers
- Number of poles: 4P
- Current rating: 25A
- Differential sensitivity: 300mA
- Type of protection: Type B (protection for AC, A and B currents, with high immunity to untimely trips)
- Voltage rating: 230/400V AC
- Mounting: DIN rail (4 modules)
- Grade of protection: IP2X
Main advantages:
✅ Advanced protection for industrial, photovoltaic and EV charging systems
✅ 300mA differential sensitivity, ideal for applications with higher protection requirements
✅ High immunity to unintentional tripping (APR), ensuring business continuity even in the presence of mains disturbances
✅ Compatibility with ABB S 200 and M 200 series circuit breakers
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