Schneider Electric 33457 ComPacT NS1250NA 4P Switch-Disconnector - Withdrawable Electrically Operated
1250A Frame | 4P
The Schneider Electric 33457 is a ComPacT NS1250NA switch-disconnector rated at 1250A in a 4-pole configuration. This basic frame, withdrawable and electrically operated, is designed for safe isolation and disconnection of electrical circuits in accordance with IEC 60947-3 standards. Unlike circuit breakers, switch-disconnectors provide no automatic overcurrent protection but ensure positive contact indication and padlockable isolation for maintenance safety. With a rated insulation voltage of 1000V and rated impulse withstand of 8kV, the NS1250NA ensures robust dielectric performance. The device is certified for pollution degree 3 industrial environments with IP40 protection and complies with IEC 60947-3 standards for switches, disconnectors, and switch-disconnectors. Physical dimensions of 327 x 280 x 147 mm enable efficient integration into switchboard assemblies. Part of the Schneider Electric ComPacT NS new generation range, the NS1250NA is suitable for main incoming isolation, bus-section switching, and maintenance disconnection in commercial buildings, manufacturing plants, and infrastructure installations. The 33457 features class II front-face protection for installation in class II switchboards without downgrading insulation. Green Premium ecolabel certified for environmental compliance with RoHS and REACh directives. Compatible with the full range of ComPacT NS accessories including rotary handles, voltage releases, and indication contacts for complete system integration. Compatible with motor mechanism modules for remote electrical operation, enabling automated switching in source changeover systems and emergency power applications.
Key Specifications
This ComPacT NS series circuit breaker features Icu of N/AkA at 415VAC, N/AkA at 240VAC, Isolation Only protection functions, withdrawable (on chassis) mounting configuration, electrical (motor mechanism) operation. Rated voltage: 690 Vac. IP rating: IP40. Frame type: NA. Connection: front/rear connection (order separately). Compliant with IEC 60947-3 standards.
Applications
Designed for isolation and disconnection in industrial facilities, commercial buildings, data centers, and critical infrastructure requiring high performance overcurrent protection with breaking capacity.
