Elmeko Control Cabinet Heater 20W with Spring-Loaded Terminal SM 20 110-240V AC/DC

The Elmeko SM 20 is a compact and reliable control cabinet heater designed to prevent condensation and maintain optimal operating temperatures inside electrical enclosures. With a heating power of 20W and a wide input voltage range of 110-240V AC/DC, it is suitable for a variety of industrial applications. The heater features a self-regulating PTC resistor element, ensuring energy efficiency and long service life without the need for an additional thermostat.

Advantages

Self-regulating PTC technology provides automatic temperature limiting, reducing energy consumption and preventing overheating. The spring-loaded terminal (Zugfederklemme) allows for quick and secure wiring without tools. Compact design saves space inside the control cabinet. Suitable for continuous operation and maintenance-free.

Suitable for

• Control cabinets and electrical enclosures requiring anti-condensation heating
• Industrial automation, HVAC, and telecommunications equipment
• Outdoor or humid environments where temperature control is critical

Key specifications

• Heating Power: 20 W
• Operating Voltage: 110 - 240 V AC/DC
• Heater Type: PTC Resistor (Self-regulating)
• Connection: Spring-loaded terminal (Zugfederklemme)
• Mounting: DIN rail (35 mm)
• Housing Material: Plastic (UL94 V-0)
• Protection Class: IP20
• Operating Temperature: -40 °C to +70 °C
• Current Consumption: approx. 0.08 A at 230V AC, 0.18 A at 110V AC
• Terminal Cross-Section: 0.5 - 2.5 mm² (solid/stranded)
• Humidity: max. 90% RH (non-condensing)
• Approvals: CE, UL Recognized Component

Recommendations

For optimal performance, install the heater at the bottom of the control cabinet to allow natural convection. Ensure adequate airflow around the heater. No additional thermostat is required due to self-regulating feature.