Why Choose the Rittal SK3305.548 TopTherm Blue e Wall-Mounted Cooling Unit?
The Rittal SK3305.548 is a high-performance TopTherm Blue e wall-mounted enclosure cooling unit designed to maintain reliable operating temperatures inside industrial electrical and automation enclosures. With approximately 1.5 kW cooling output and a 400/460 V AC three-phase supply, it provides effective heat removal for cabinets containing drives, PLCs, power electronics and other temperature-sensitive equipment.
Designed for demanding industrial installations, the SK3305.548 combines Rittal Blue e cooling technology with an integrated e-Comfort controller for intelligent enclosure temperature regulation. Separate internal and external air circuits allow heat to be transferred from the protected enclosure without continuously introducing ambient air and contaminants into the cabinet.
The cooling unit is UL listed and designed for NEMA Type 3R and Type 4 applications, providing a robust solution where environmental protection is required alongside dependable thermal management. Its wall-mounted format makes it suitable for machine and control enclosures where efficient refrigeration-based cooling is needed without consuming valuable internal cabinet space.
Key Advantages
- High-performance Rittal TopTherm Blue e wall-mounted enclosure cooling unit.
- Approximately 1.5 kW cooling output for demanding industrial applications.
- 400/460 V AC three-phase supply for industrial power systems.
- Integrated e-Comfort controller for intelligent temperature management.
- NEMA Type 3R and Type 4 design for enhanced environmental protection.
- UL listed for use in appropriate industrial electrical installations.
- Separate internal and external air circuits support closed-loop enclosure cooling.
- Blue e technology helps combine reliable cooling with efficient operation.
Key Features
- Rittal TopTherm Blue e cooling unit.
- Wall-mounted configuration for industrial electrical enclosures.
- 1500 W nominal cooling output.
- 400/460 V AC, 3~ supply.
- Designed for 50/60 Hz industrial power systems.
- Integrated e-Comfort temperature controller.
- NEMA Type 3R / Type 4 enclosure protection.
- UL listed cooling solution.
- Closed-loop refrigeration system separates enclosure and ambient airflow.
- Designed for continuous thermal management of industrial control equipment.
Reliable Cooling for Industrial Automation Equipment
Variable frequency drives, PLCs, power supplies, servo controllers and other industrial electronics generate heat continuously during operation. If this heat is allowed to accumulate inside an electrical enclosure, component temperatures may exceed their recommended operating limits, potentially causing premature ageing, protective shutdowns and reduced equipment reliability.
The Rittal SK3305.548 uses a closed refrigeration circuit to remove excess heat while maintaining separation between internal enclosure air and the surrounding environment. Combined with its e-Comfort controller and approximately 1.5 kW cooling capacity, this provides controlled thermal conditions for demanding industrial automation and machine-building applications.
Typical Applications
- Industrial electrical control enclosures.
- Variable frequency drive and motor control cabinets.
- PLC and industrial automation systems.
- Servo drives and power electronics enclosures.
- Machine tool and production equipment.
- Manufacturing and process automation systems.
- Industrial installations requiring NEMA Type 3R or Type 4 protection.
- OEM machinery with significant internal enclosure heat loads.
