
RITTAL
Frequently asked questions
Common questions about RITTAL from 3G Electric.
What is the difference between Rittal cooling-only and cooling/heating heat exchangers?
Rittal cooling-only heat exchangers, such as the 3214100 and 3127100, remove heat from enclosures using a refrigerant circuit or air-to-air exchange, depending on the model. Cooling/heating units, such as the 3373100 and 3215100, include a heating function to maintain minimum temperatures in cold environments or to prevent condensation. Selection depends on ambient temperature range and whether the enclosure requires freeze protection. Both types are wall-mounted and operate on 115 V or 230 V supply.
What NEMA ratings are available for Rittal heat exchangers?
Rittal heat exchangers are available with NEMA 1, 12, or 3R ratings. NEMA 1 is for indoor use with limited dust protection. NEMA 12 provides dust-tight and drip-tight protection for indoor industrial environments. NEMA 3R is weather-resistant for outdoor use, protecting against rain, sleet, and snow. Models such as the 3373100 and 3374110 carry the 1/12/3R rating, making them suitable for both indoor and outdoor applications where washdown or weather exposure is a concern.
How do I select the correct Rittal heat exchanger capacity for my enclosure?
Capacity selection depends on the total heat load inside the enclosure, the maximum allowable internal temperature, and the ambient temperature. Rittal heat exchangers are rated in BtuH, with models ranging from 2,388 BtuH to 10,236 BtuH in the 3G Electric catalog. Calculate the heat generated by components, add any solar gain or external heat sources, and compare against the unit's capacity at the expected ambient. For assistance, provide enclosure dimensions, internal component wattage, and ambient conditions to 3G Electric's technical team.
Are Rittal cable claw D-rings compatible with all Rittal enclosures?
Rittal cable claw D-rings, such as MPN 9969600, are designed for routing and securing cables within electrical enclosures and control panels. They are plastic, black, and supplied in 10-packs. Compatibility depends on the mounting surface and available space. These accessories are commonly used in Rittal TS 8, SE 8, and AE series enclosures, but they can be installed in any enclosure with suitable mounting provisions. They help organize wiring and improve airflow by keeping cables away from heat-generating components.
What voltage options are available for Rittal wall-mounted heat exchangers?
Rittal heat exchangers in the 3G Electric catalog are available with 115 V or 230 V operating voltages. For example, the 3129115 and 3374110 operate on 115 V, while the 3214100, 3127100, 3373100, 3215100, and 3126100 operate on 230 V. Voltage selection should match the available supply in the facility. Some models are available in both voltages with different part numbers. Always verify the nameplate voltage and frequency before installation.
Can Rittal heat exchangers be used in outdoor applications?
Yes, Rittal heat exchangers with NEMA 3R rating are suitable for outdoor use. Models such as the 3373100 and 3374110 are rated NEMA 1/12/3R, providing weather resistance against rain, sleet, and snow. They are designed for wall mounting and include features to protect against dust and water ingress. For outdoor installations, consider ambient temperature extremes, direct sunlight, and maintenance access. These units are commonly used in remote pumping stations, telecommunications cabinets, and outdoor process control enclosures.
