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The A32 ACB 800-3200A is a premium type of main power distribution air circuit breaker designed to provide high-capacity overcurrent and short-circuit protection.
| Specification | Details |
|---|---|
| Product Series | A32 ACB (Air Circuit Breaker) |
| Rated Current (In) | 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A |
| Rated Voltage (Ue) |
- Main circuit: Up to 690V AC (50/60Hz) - Auxiliary circuit: 230V/400V AC, 24V DC (typical) |
| Breaking Capacity (Icu) |
- N type: 80kA @ 415V; 65kA @ 690V - H type: 100kA @ 415V; 70kA @ 690V - Q type: 65kA @ 415V; 50kA @ 690V |
| Making Capacity (Icm) | ≥ 1.5 × Icu (compliant with IEC 60898) |
| Short-Time Withstand Current (Icw) | 50kA/1s, 65kA/1s, 80kA/1s (varies by model) |
| Pole Configuration | 3-pole and 4-pole options |
| Mounting Type |
- Fixed type - Withdrawable type (withdrawable units for easy maintenance) |
| Tripping Units |
- Electronic trip units (ETU) with adjustable overcurrent protection (long-time, short-time, instantaneous) - Optional ground fault protection (GF) |
| Operating Mechanism | Spring-operated (manual or motorized charging options) |
| Standards Compliance | IEC 60947-2, UL 1066, ANSI C37.13, CSA C22.2 No. 5 |
| Certifications | CCC, UL, CSA, CE, RoHS |
| Ambient Temperature |
- Operating: -5°C ~ +40°C (derating required above 40°C) - Storage: -25°C ~ +70°C |
| Humidity Resistance | ≤ 95% RH (non-condensing) |
| IP Rating | IP3X (enclosure); IP20 (terminal area) |
| Mechanical Life | ≥ 10,000 operations (manual) / ≥ 5,000 operations (motorized) |
| Electrical Life | ≥ 3,000 operations at In; ≥ 100 operations at Icu |
| Accessories |
- Auxiliary contacts (NO/NC) - Shunt trips, undervoltage releases - Communication modules (Modbus RTU, Profibus DP) - Extension handles, interlock devices |
| Special Features |
- Integral arc quenching system for safe fault interruption - Withdrawable type supports "test/connect/disconnect" positions - Visible break contacts for safety verification |
Please refer to the technical datasheets in the Resources section to map custom configuration suffixes for specialized breaker frames.
