

Rittal SK 3185530 Blue e+ 1.6 kW stainless steel wall-mounted cooling unit with multi-voltage operation, R-513A refrigerant, IP55 protection and UL Type 3R rating.
Item No :
SK 3185530Version :
wall-mountedMaterial :
Stainless steel 1.4301 (AISI 304)Color :
RAL 9007Protection category NEMA :
UL Type 12 / UL Type 3RProtection category IP to EN 60 529 :
Internal circuit IP 55
Rittal SK 3185530 Blue e+ Stainless Steel Wall-Mounted Cooling Unit
The Rittal SK 3185530 is a 1.6 kW Blue e+ wall-mounted cooling unit manufactured from stainless steel 1.4301 (AISI 304). It is designed for industrial electrical enclosures that require energy-efficient cooling, multi-voltage compatibility and improved corrosion resistance.
Unlike the sheet-steel SK 3185830, the SK 3185530 uses an AISI 304 stainless-steel housing with an RAL 9007 finish. The stainless-steel housing makes it suitable for projects where corrosion resistance and enclosure material compatibility are important selection criteria. Suitability for washdown, chemical exposure or hygienic environments must be confirmed according to the specific operating conditions.
The unit combines speed-controlled components with heat-pipe technology. It supports both 110–240 V single-phase and 380–480 V three-phase power supplies at 50/60 Hz, allowing the same model to be used in international machine and enclosure projects.
| Article no.: | SK 3185830 |
| Dimensions | 400 mm x 950 mm x 310 mm |
| Version | wall-mounted |
| Product changes | The cover for the connection box for protection for the electrical connection on the cooling unit has not been included in the delivery scope since the start of 2024. Cover 3355.200 and cover 3355.210 can be ordered as an optional accessory. |
| Material | Stainless steel 1.4301 (AISI 304) |
| Color | RAL 9007 |
| Options | The optional Blue e+ IoT interface enables remote monitoring of cooling unit status, operating data, and system messages, supporting predictive maintenance and improved equipment availability. |
| Rated operating voltage |
|
| Cooling Capacity (DIN EN 14511) | Cooling output L35 L35/50 Hz: 1.6 kW Cooling output L35 L35/60 Hz: 1.6 kW Cooling output L35 L50/50 Hz: 1.1 kW Cooling output L35 L50/60 Hz: 1.1 kW ( Cooling output L35 L35/50 Hz: 5,459 BTU/h Cooling output L35 L35/60 Hz: 5,459 BTU/h Cooling output L35 L50/50 Hz: 3,753 BTU/h Cooling output L35 L50/60 Hz: 3,753 BTU/h ) |
| Note on Model No.: | Tolerance: 110 V -10% (99 V) and 240 V +10% (264 V) / 380 V -10% (342 V) and 480 V +6% (509 V) |
| Air throughput (unimpeded air flow) | External circuit: 895 m³/h Internal circuit: 700 m³/h ( External circuit: 526.8 cfm Internal circuit: 412 cfm ) |
| Rated output | 0.7 kW |
| Energy efficiency ratio (EER) 50/60 Hz L35 L35 | Refrigeration factor L35 L35 (EER) 50 Hz: 2.96 Refrigeration factor L35 L35 (EER) 60 Hz: 2.96 |
| Seasonal energy efficiency ratio (SEER) 50/60 Hz | 5.5 |
| Required mounting cut-out | Width of opening: 383 mm Cut-out height: 929 mm ( Width of opening: 15.1 ˝ Cut-out height: 36.6 ˝ ) |
| Protection category IP to EN 60 529 | Internal circuit IP 55 |
| Protection category NEMA |
|
| Refrigerant/cooling medium | Refrigerant: R-513A Quantity: 0.76 kg Global Warming Potential (GWP): 631 CO₂ equivalent (CO₂e): 0.48 t ( Refrigerant: R-513A Quantity: 1.7 lb. ) |
| Temperature control | e+ controller (factory setting +35 °C) |
| Operating temperature range | -20 °C...60 °C ( -4 °F...140 °F ) |
| Storage temperature range | -40 °C...70 °C ( -40 °F...158 °F ) |
| Operating temperature range of refrigerant circuit (active) | 3 °C...60 °C |
| Operating temperature range of heat pipe | -20 °C...45 °C |
| Setting range | 20 °C...50 °C ( 68 °F...122 °F ) |
| Rated power Pel | Rated power L35 L35/50 Hz: 0.54 kW Rated power L35 L35/60 Hz: 0.54 kW Rated power L35 L50/50 Hz: 0.61 kW Rated power L35 L50/60 Hz: 0.61 kW |
| Permissible operating pressure (p. max.) | 24 bar ( 348.1 PSI ) |
| Packaging unit | 1 pc(s). |
| Net weight | 40.5 kg |
| Gross weight | 46.375 kg |
| PCF/VE (cradle-to-gate) | 660.04 |
| Customs tariff number | 84158200 |
| ECLASS 8.0 | 27180704 |
| EAN | 4028177934658 |
| ETIM 9 | EC000855 |
| ETIM 8 | EC000855 |
| Note |
|
Benefits
Supply includes
Blue e+ wall mounted cooling unit with hydrophobic RiNano-coated condenser
Integrated electric condensate evaporation system for reliable operation
Complete assembly components for efficient installation
Pre-wired connection with plug-in terminal strip for simplified electrical integration
Why Choose the Rittal SK 3185530?
Energy-Efficient Enclosure Cooling
At L35/L35 conditions, the SK 3185530 provides 1.6 kW cooling output with power consumption of approximately 0.54 kW. The unit has an energy efficiency ratio of 2.96 and a seasonal energy efficiency ratio of 5.5.
Industrial Temperature Range
The cooling unit is designed to operate at ambient temperatures from −20°C to +60°C. The heat-pipe circuit operates between −20°C and +45°C, while the active refrigeration circuit operates between +3°C and +60°C.
Remote Monitoring Capability
The SK 3185530 can be connected to the Rittal IoT Interface 3124300. This allows operating data, device status and system messages to be integrated into industrial monitoring and maintenance systems.
Downloads
Approvals
Accessories

3285800 Filter Mat
For air-air heat exchangers: no
For cooling units: yes
For chillers: no
Packaging unit: 3 pc(s).

3285810 Metal filters
For cooling units: yes
For chillers: no
For climate control door/section door: no
Packaging unit: 3 pc(s).

3213340 Air diverter
Suitable for Model No.:
3184.837 / 3484.837
3185.83x / 3485.83x
3185.530 / 3485.530
Suitable for: Wall-mounted cooling unit Blue e+
Packaging unit: 2 pc(s).

3124300 LoT interface
Packaging unit: 1 pc(s).

4127010 Door-Operated Switch
Version: without connection cable
Installation options:
For LED System Light
For standard and courtesy lights without an integrated door-operated switch
For cooling units and air-water heat exchangers
UL approval: yes
UR approval: no
Packaging unit: 1 pc(s).

3124400 Temperature sensor
Packaging unit: 1 pc(s).

3124300 LoT interface
Packaging unit: 1 pc(s).

4127010 Door-Operated Switch
Version: without connection cable
Installation options:
For LED System Light
For standard and courtesy lights without an integrated door-operated switch
For cooling units and air-water heat exchangers
UL approval: yes
UR approval: no
Packaging unit: 1 pc(s).

3235600 Pre-fuse
Lengh: 10mm
Diameter: 12mm
Depth: 76mm

3301612 Condensate hose
Lengh: 10mm
Diameter: 12mm
Packaging unit: 1 pc(s).

3355200 Cover
Suitable for Model No.:
3184.837 / 3484.837
3185.x3x / 3485.x3x
Packaging unit: 1 pc(s).

3235610 Pre-fuse
Number of poles: 3-pole
Lengh: 10mm
Diameter: 12mm
Depth: 76mm

3235620 Pre-fuse
Number of poles: 3-pole
UL approval: yes
Lengh: 144mm
Diameter: 45mm
Depth: 97mm
Packaging unit: 1 pc(s).

4538000 Ride-up roller
Suitable for enclosure type: TS / VX SE / PC
Packaging unit: 10 pc(s).

4052000 Multitool
Packaging unit: 1 pc(s).
Spare parts
The following spare parts and components are available:

No. 1 – 3396734: Compressor
No. 2 – 3396798: Assembly components for compressor
No. 5 – 3396735: Radial fan
No. 10 – 3396736: Radial fan
No. 15 – 3399016: Accessory bag
No. 16 – 3398404: Connector
No. 20 – 3398334: Expansion valve
No. 21 – 3398343: Coil for expansion valve
No. 25 – 3398335: Dryer
No. 30 – 3398336: Pressostat
No. 40 – 3398354: I/O board
No. 41 – 3396733: Inverter
No. 48 – 3398152: Mounting clips
No. 49 – 3398153: Fastening point
No. 50 – 3396740: Cover
No. 55 – 3396823: Display
No. 70 – 3396741: Temperature sensor
No. 101 – 3398350: Condensate Evaporator
No. 102 – 3396744: Display cable
No. 190 – 3398649: Cable power input AC
Replacement parts for reliable maintenance
These original components support efficient maintenance, repair, and long-term operation of the cooling unit. Available spare parts include compressors, fans, control boards, sensors, connectors, display components, and other essential cooling system accessories. Selecting the correct replacement part number ensures compatibility and helps maintain stable performance of the enclosure cooling system.
Our Factory
Each cooling unit is checked for model number, exterior condition and package integrity before shipment. Export orders are packed according to product dimensions, destination and transportation requirements.
FAQ
Q1: Can SK 3185530 operate with both single-phase and three-phase power?
A: Yes. It supports 110–240 V single-phase and 380–480 V three-phase power supplies at 50/60 Hz. The voltage tolerances stated in the official technical documentation must be observed.
Q2: Can the SK 3185530 be installed outdoors?
A: The unit is described as suitable only for semi-outdoor use under the conditions specified in the installation instructions. The installation location, weather exposure, enclosure sealing and environmental conditions must be evaluated before use.
Q3: Can the cooling unit be monitored remotely?
A: Yes. The unit can be connected to the Rittal IoT Interface 3124300 for access to operating data, device status and system messages.
Q4: Does the standard package include a connection-box cover?
A: No. The electrical connection-box cover has not been included as standard since the beginning of 2024. Covers 3355.200 and 3355.210 can be ordered separately.