SCHNEIDER ALU821
Schneider ALU-821 is a commonly used 2-point (NO/NC) control relay, suitable for medium- and low-voltage power distribution and automation systems. Its main technical specifications are as follows:
- Mechanical life: 30 million cycles
- Maximum operating frequency: 180 cycles/min
- Time constant: 28 ms
- Holding power consumption: 5.4 W (at 20 °C)
- Minimum switching voltage: 17 V
- Minimum switching current: 5 mA
- Non-overlap time: 1.5 ms (between NC and NO contacts during energization)
- Insulation resistance: > 10 MΩ
- Mechanical shock:
- Open contact: 10 g (11 ms)
- Closed contact: 15 g (11 ms)
- Vibration:
- Open contact: 2 g (300 Hz)
- Closed contact: 4 g (300 Hz)
- Dimensions: Height 77 mm × Width 45 mm × Depth 93 mm
- Weight: 0.58 kg
This relay adopts standard 3-hole DIN rail mounting and is compatible with various Schneider automation modules, enabling reliable switching control in PLC, HMI, and other automation systems.
Core Products & Services:
- Control Systems (DCS, PLC, CNC)
- Control Panels & Panel Controllers
- Human Machine Interfaces (HMI) & Display Panels
- Drives & Servo Motors
- Encoders & Resolvers
- Industrial Power Supplies
We maintain a vast inventory of industrial control system spare parts, sourcing from a wide range of leading manufacturers and an extensive supplier network to ensure flexibility and reliability.
To address your urgent needs, we offer rapid shipping for efficient solutions. Even if a specific part is not in stock, we can typically locate and procure it for you promptly.
Furthermore, through Moore Automation, we specialize in providing high-quality obsolete and discontinued spare parts. This service helps you extend the lifespan of your installed control systems and effectively reduce long-term maintenance costs.
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