The ALU 150 circuit breaker accessory adds undervoltage protection to Schneider industrial distribution systems. This compact device trips breakers when supply voltage drops below safe thresholds. Engineers rely on it for motor protection and equipment safety in automation panels.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Circuit Breaker Accessory |
| Compatibility | Schneider Circuit Breakers |
| Function | Undervoltage Release |
| Rated Voltage | 220–240 VAC |
| Trip Threshold | 70% of Rated Voltage |
| Interface | Side-Mounted Mechanical Coupling |
| Dimensions | 90 mm x 45 mm x 65 mm |
| Weight | Approximately 0.22 kg |
| Component Count | 14 Active Electronic Components |
| Energy Storage | None Required |
| Power Consumption | 2 VA Maximum |
| Operating Temperature | -5°C to 55°C |
| Relative Humidity | 5% to 95%, Non-Condensing |
Protection and Trip Behavior
The device monitors supply voltage continuously and trips the breaker on dips. Therefore, motors and sensitive loads avoid damage from low-voltage conditions. Furthermore, the trip threshold sits at 70% of the rated voltage. Consequently, it responds before equipment experiences harmful operating states.
Interface and Mounting
A side-mounted mechanical coupling links the ALU 150 directly to compatible breakers. As a result, installers attach the accessory without rewiring the main circuit. Additionally, the compact housing fits standard distribution panel spaces.
Electrical Characteristics
The unit operates on 220–240 VAC with a maximum consumption of 2 VA. Moreover, it handles ambient temperatures from -5°C to 55°C reliably. Consequently, it suits most industrial control room environments.
Installation Notes
Operators snap the accessory onto the breaker side for fast assembly. The mechanical link engages automatically once the unit seats properly. However, users should verify breaker compatibility before ordering this part.
Details
| Weight | 0.15 kg |
|---|---|
| Dimensions | 110 × 72 × 38 mm |
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