ABB B273202 - Earth Leakage Block 4P 63A 500mA Type B

ABB B273202 - Differential Lock 4P 63A 500mA Type B - Advanced Protection for Electrical Installations

Maximum security for industrial, commercial applications and installations with advanced electronics

The ABB Differential Block B273202 is an essential component of the DDA 200 series, designed to provide advanced thermal-magnetic differential protection. This model Type B is ideal for highly critical installations, as it is capable of detecting alternating leakage current (AC), pulsating direct current (A) and pure direct current (B), up to frequencies of 1kHz, with a high immunity to Anti Perturbation (APR).

Thanks to these features, the DDA204 B-APR 63A 500mA is particularly suitable for photovoltaic systems, inverters, variable speed motors, electric vehicle charging stations and advanced electronic devices.

Designed by ABB, a leading company in the electrical safety sector, this device ensures maximum reliability and compliance with international safety standards, protecting people and equipment with high performance and advanced differential protection.

Main features:

• Order Code: ABB B273202
• Type: Differential lock for circuit breakers
• Number of poles: 4P
• Current rating: 63A
• Differential sensitivity: 500mA
• 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
• Grade of protection: IP2X

Main advantages:

✅ Advanced protection for industrial, photovoltaic and EV charging systems
✅ Differential sensitivity of 500mA, ideal for installations with specific protection requirements
✅ High immunity to unintended trips (APR), guaranteeing operational continuity even in the presence of network disturbances
✅ Compatibility with ABB S 200 and M 200 series circuit breakers
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