DTS 3481C
SIDE MOUNT COOLING UNITS
16000-23000 Btu/h
Our DTS 3481C (NEMA Type 4/4x) washdown cooling unit delivers dependable thermal management for high heat-load industrial enclosures. Designed for high-horsepower drive applications, it combines rugged construction, service-friendly access, and reliable performance in demanding environments. Housing: galvanized sheet steel. Cover: stainless steel 304
Product Overview:
- Highest cooling capacity in the smallest footprint possible
- Easy access to the electrical panel, even in tight spaces
- No more phasing (460v)
- Robust and Service Friendly : HP & LP switch to protect the compressor /Easy access to components
- Highly visible Fault indicator on the front of the unit
- Available in R513a and R134a refrigerant
- Future-proofed to meet the UL 60335
*Please note that this model requires a different cutout from the previous 34X1 models
Features
Closed Loop Design
Designed to isolate the external ambient air from the internally conditioned air eliminating the risk of contaminants entering the cabinet.
Service Friendly Electric Panel
Easy access to the electrical panel, even in tight spaces.
Hermetically Sealed Reciprocating Compressor
The absence of any refrigerant fill valves eliminates leak paths. Recharging is never needed. Reciprocating Compressor eliminate phase mis-wiring.
Active Condensate Management
Condensation is a natural byproduct of refrigeration. The heated condensate collection pan boils this off thereby eliminating the need for drain tubes and buckets. To conserve power, this heater only activates when necessary.
High Airflow Backward Curve Impeller Fan
Provides high airflow preventing hotspot especially in populated or multiple bay enclosures. Best in Class fan providing long service life.
Rugged Design for All Environment
Powder coated or stainless-steel cover designed for harsh manufacturing environments. Additional rainhood cover for DTS 3461C Outdoor (Type 3R/4) and DTS 3461C Washdown (Type 4/4X) designs.
Efficient and Extended Life Design
Zinc coated micro-channel design provides up to 40% increased in heat rejection boosting the overall cooling performance. The coating provides additional protection towards corrosive environment prolonging the service life.
Pressure and Thermal Overload Protection
High pressure cutout and thermal switches ensures safety by shutting off the compressor and fans in unforeseen event of excessive pressure or heat to protect unit from costly repair
Highly Visible Status Light
Provides easy visual indication on the running status of the cooling unit. Alerting maintenance team of any error when happened.
Technical Data Overview
| DTS 3481C - R513a | 230 V | 400/460 V |
|---|---|---|
| PART NUMBER | 13581291308 | 13581261308 |
| FREQUENCY (Hz) | 60 | 50/60 |
| POWER CONSUMPTION (W) | 4044 | 4163 |
| NOMINAL (RUN) CURRENT* (@35A/35A) | 18 A | 5 A |
| FUSE (max.)** CLASS CC | 50 A | 15 A |
| NOISE LEVEL*** dB(A) | 79 | |
| WEIGHT lb (kg)(without packaging) | 230 (105) | |
| DIMENSIONS in | 57.2 x 15.75 x 21.69 | |
| *For the MCA (Maximum Current Ampacity) value per UL, please consult product technical datasheets available above. **Suitable for Transformer Inrush Protection ***(According to EN ISO 3741) |
||
| DTS 3481C - R134a | 230 V | 400/460 V |
|---|---|---|
| PART NUMBER | 13381291308 | 13381261308 |
| FREQUENCY (Hz) | 60 | 50/60 |
| POWER CONSUMPTION (W) | 3740 | 4000 |
| NOMINAL (RUN) CURRENT* (@35A/35A) | 16.6 A | 5 A |
| FUSE (max.)** CLASS CC | 35 A | 15 A |
| NOISE LEVEL*** dB(A) | 79 | |
| WEIGHT lb (kg)(without packaging) | 230 (105) | |
| DIMENSIONS in | 57.2 x 15.75 x 21.69 | |
| *For the MCA (Maximum Current Ampacity) value per UL, please consult product technical datasheets available above. **Suitable for Transformer Inrush Protection ***(According to EN ISO 3741) |
||
Performance Curve

Additional Data
| DTS 3481C - R513a | ||
|---|---|---|
| AMBIENT TEMPERATURE RANGE | + 25°F … + 131°F / + 4°C… + 55°C | |
| CONTROL RANGE (adjustable) | SC | + 77°F … + 113°F / + 25°C … + 45°C; factory setting + 95°F / + 35°C |
| REFRIGERANT | type | R513a |
| quantity | 1400 g | |
| CONDENSATE MANAGEMENT | Integrated condensate management system with condensate drain | |
| PROTECTION SYSTEM ACCORDING TO NEMA TYPE | NEMA Type 4/4x(against enclosure when properly installed) | |
| NEMA 1 towards the surroundings when properly installed | ||
| DTS 3481C - R134a | ||
|---|---|---|
| AMBIENT TEMPERATURE RANGE | + 25°F … + 131°F / + 4°C… + 55°C | |
| CONTROL RANGE (adjustable) | SC | + 77°F … + 113°F / + 25°C … + 45°C; factory setting + 95°F / + 35°C |
| REFRIGERANT | type | R134a |
| quantity | 1850 g | |
| CONDENSATE MANAGEMENT | Integrated condensate management system with condensate drain | |
| PROTECTION SYSTEM ACCORDING TO NEMA TYPE | NEMA Type 4/4x(against enclosure when properly installed) | |
| NEMA 1 towards the surroundings when properly installed | ||
Subject to technical amendments and misprints.
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