Phoenix Contact ELR 1-SC-24DC/600AC-20 – High-Durability Solid-State Contactor for Industrial Automation
The Phoenix Contact ELR 1-SC-24DC/600AC-20 is a single-phase solid-state contactor designed for precise and silent switching in AC systems. With a 24 V DC control voltage and a 20 A load capacity, it provides fast, contactless performance suitable for demanding industrial applications. Its zero-voltage switching technology minimizes surge currents and extends the service life of connected devices. Built in a compact 18 mm-wide housing, the device saves valuable panel space while ensuring stable operation across a wide 42–660 V AC range. It performs reliably in harsh environments, with an operating temperature range from –30 °C to +70 °C.
The ELR 1-SC-24DC/600AC-20 combines durability, energy efficiency, and precision for modern control systems. Unlike traditional electromechanical contactors, it operates without moving parts, eliminating contact wear and reducing maintenance needs. The integrated varistor protection guards against voltage spikes, while a green LED indicator provides instant status feedback. Its DIN-rail mounting design ensures quick installation and consistent performance in industrial cabinets. Certified to meet international electrical standards, this model is ideal for switching resistive or inductive loads in automation, HVAC, and manufacturing processes—offering long-term reliability, reduced noise, and improved operational efficiency in demanding environments.
Commercial Information – Phoenix Contact ELR 1-SC-24DC/600AC-20: 1032919
| Commercial Data |
Details |
| GTIN Number |
4055626537726 |
| Traffic (Tariff) Number |
85364190 |
| Weight (Excluding Packing) |
255 g |
| Country of Origin |
Malta (MT) |
The Applications
1. Precision Fan Control in HVAC Systems
In large ventilation and air-conditioning systems such as those found in hospitals or clean manufacturing environments, maintaining stable airflow is critical. The ELR 1-SC-24DC/600AC-20’s zero-voltage switching allows fans to start smoothly without electrical noise or sudden surges. This silent and wear-free operation keeps air circulation consistent and reliable while reducing maintenance downtime and mechanical wear in continuous operation environments.
2. Compressor Control in Industrial Cooling Systems
Industrial chillers and refrigeration units often experience heavy starting currents that can wear out mechanical relays. The ELR 1-SC-24DC/600AC-20 handles these loads effortlessly using solid-state switching that resists arc formation and contact fatigue. This ensures longer compressor life, stable performance under repetitive on/off cycles, and reliable operation in facilities requiring precise temperature regulation such as cold storage and process cooling.
3. Electric Heating and Process Temperature Regulation
In heating systems for plastic molding, ovens, or drying lines, temperature accuracy is essential. The ELR 1-SC-24DC/600AC-20’s fast electronic response and wear-free switching enable consistent power delivery to heating elements. This maintains tight temperature control, reduces energy loss, and minimizes equipment stress. Its solid-state design also ensures longevity in environments that demand continuous and frequent switching.
4. Conveyor and Pump Motor Automation
Automated conveyors and fluid pumps rely on precise start-stop control to synchronize production flows. The ELR 1-SC-24DC/600AC-20 provides quiet, vibration-free operation with reduced electrical interference. Its ability to handle inductive loads with stability makes it ideal for production lines, packaging systems, and automated fluid transfer. The result is smoother operation, increased uptime, and reduced mechanical strain on connected motors and control systems.
Related Products & Accessories – Phoenix Contact ELR 1-SC-24DC/600AC-20
| Category |
Product Name |
Part Number |
Key Use / Benefit |
| Higher Current Variant |
Phoenix Contact ELR 1-SC-24DC/600AC-50 |
1032926 |
Same solid-state design with 50 A output capacity for heavier AC loads or larger systems. |
| Mid-Range Output Version |
Phoenix Contact ELR 1-SC-24DC/600AC-30 |
1032921 |
30 A version offering balanced performance and compatibility in modular setups. |
| Compact Solid-State Relay |
Phoenix Contact Solid-State Relay |
1032920 |
Alternative form factor ideal for panel designs requiring space efficiency or quick switching. |
| Mounting Adapter / Interface Module |
Phoenix Contact Adapter for ELR Series |
1683471 |
Simplifies DIN-rail mounting and connection integration in compact control cabinets. |
| LED/Label Accessory Kit |
Phoenix Contact LED/Marker Accessory |
1071329 |
Enhances visual indication and labeling for quick identification and maintenance. |
| Protective Circuit Breaker / Limiter |
Phoenix Contact Current Limiter Module |
2297031 |
Provides overcurrent protection and modular circuit segmentation for safer operation. |
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Warranty – 1-year warranty for your peace of mind.
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