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AEG A332-03 Series Industrial Grade Intermediate Relay
- Product Introduction: This is a 3-pole double-throw (3PDT) industrial grade intermediate relay of the AEG A332 series, with 24 VDC low-voltage coil, designed for signal isolation, amplification and conversion in industrial control systems. It adopts a high-sensitivity electromagnetic coil, silver alloy contact, and flame-retardant plastic enclosure, with high contact capacity, long service life and strong anti-vibration performance, and is an essential intermediate control component for connecting PLC low-current output signals and high-current field actuators in industrial control systems.
- Technical Specifications:
- Contact Configuration: 3 pole double throw (3PDT), 3 normally open (NO) + 3 normally closed (NC) contacts, independent contact action.
- Coil Parameter: 24 VDC rated voltage, coil resistance 144 Ω, rated current 167 mA, power consumption 4 W, insulation resistance ≥100 MΩ.
- Contact Capacity: AC 250 V / 10 A (resistive load), AC 250 V / 5 A (inductive load), DC 30 V / 5 A (resistive load); Mechanical life ≥100 million times, electrical life ≥1 million times.
- Switching Time: Operate time ≤15 ms, release time ≤10 ms; Vibration Resistance: 10-55 Hz, 1.5 mm amplitude (IEC 60068-2-6).
Detailed content
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- Insulation Performance: 5000 V AC dielectric strength between coil and contacts, 1500 V AC between contacts, IP20 protection rating.
- Enclosure Material: PA66 flame-retardant engineering plastic, UL94 V-0 flame retardant grade, high temperature resistance and anti-fracture.
- Mounting Method: Standard 35mm DIN rail mounting, snap-in design, with manual test button for on-site debugging.
- Terminal Type: Screw terminal, suitable for 0.5-2.5 mm² wire, torque value 0.8 N·m, firm and anti-loose.
- Dimensions: 45mm × 70mm × 85mm (W×H×D); Net Weight: 0.18 kg; LED Indicator: Red LED for coil power on status.
- Functional Features:
- 3PDT contact configuration (3NO+3NC) provides flexible control signal switching and isolation functions, meeting the requirements of one input multiple output or signal reverse conversion in industrial control systems, with strong versatility.
- 24 VDC low-voltage coil is perfectly matched with the digital output of PLC and DCS systems, realizing the isolation and amplification of low-current control signals from the control system to high-current field actuator signals, solving the problem of insufficient output current of the control system.
- Silver alloy contacts with high contact capacity (10 A AC resistive load) can directly drive small and medium-power field actuators, and the long mechanical/electrical life ensures stable work in long-term continuous operation of industrial systems, reducing maintenance frequency.
- High-sensitivity electromagnetic coil with low power consumption (4 W) has fast switching speed (operate ≤15 ms), ensuring real-time response of the relay to control signals, meeting the high real-time requirements of industrial control systems.
- 5000 V AC high dielectric strength between coil and contacts effectively isolates the control circuit and the field power circuit, preventing high-voltage feedback from the field to the control system such as PLC, and ensuring the safety of the control system.
- PA66 flame-retardant enclosure with UL94 V-0 flame retardant grade meets the fire safety requirements of industrial control cabinets, and the rugged plastic structure has good anti-vibration and anti-fracture performance, adapting to the vibration environment of industrial production sites.
- Standard 35mm DIN rail snap-in mounting and screw terminal wiring simplify on-site installation and wiring, and the built-in manual test button allows on-site debugging of the relay and field actuators without connecting the control signal, improving debugging efficiency.
- Red LED coil power on indicator realizes visual monitoring of the relay working status, and the independent contact action design ensures no mutual interference between the three poles, avoiding fault spread between different control circuits.
- Wide environmental adaptability (working temperature -25°C to +70°C) and high insulation resistance ensure stable work in various industrial environments such as high temperature, low temperature, dust and humidity, with low failure rate.
- Application Scenarios: Widely used for signal isolation, amplification and conversion in industrial control systems such as factory automation production lines, PLC/DCS control systems, building automation, and municipal engineering control. It is the essential intermediate control component for connecting PLC low-current output and field high-current actuators in occasions such as solenoid valve driving, contactor control, indicator light switching and pump/motor interlock control, and is suitable for all industrial occasions that require signal isolation and amplification in control systems.
