I. Series Overview
The TAG series comprises the hermetic 3-cylinder reciprocating refrigeration compressors of the French Tecumseh AG series, specifically designed for medium and low-temperature commercial refrigeration and air conditioning applications. Covering a power range from approximately 3.8 HP to 6 HP and utilizing R22 refrigerant, this series serves as the ideal power core for medium-sized commercial refrigeration equipment.
| Series | Power Range | Technical Features | Main Applications |
| TAG Series | 3.8–6 HP | 3-cylinder reciprocating, hermetic structure, R22 refrigerant | Medium cold rooms, commercial freezers, ice machines, industrial refrigeration |
Common Features: The entire series adopts a 3-cylinder hermetic reciprocating design, powered by 3-phase 380-420V/50Hz (compatible with 460V/60Hz). Equipped with large-volume motors featuring Class F insulation, it offers significant advantages of high efficiency, low slip, high cooling capacity, and low power consumption.
Core Difference: From the TAG5546E to the TAG5573E, displacement and cooling capacity increase progressively, covering a complete power range from 3-5/6 HP to 6 HP to suit varying refrigeration load requirements.
II. Comprehensive Parameter Comparison Table (5 Models Total)
| No. | Model | Brand | Refrigerant | Power Supply | Nominal Power (HP) | Displacement (cm³) | Operating Current (A) | Weight (kg) | COP (W/W) |
| 1 | TAG5546E | Tecumseh | R22 | 3φ, 400V/50Hz | 3-5/6 | 90.2 | 6.6 | 42.5 | 2.79 |
| 2 | TAG5553E | Tecumseh | R22 | 3φ, 400V/50Hz | 4-3/7 | 100.7 | 7.4 | 43.5 | 2.86 |
| 3 | TAG5561E | Tecumseh | R22 | 3φ, 400V/50Hz | 5 | 112.5 | 9.0 | 44.5 | 2.78 |
| 4 | TAG5568E | Tecumseh | R22 | 3φ, 400V/50Hz | 5-2/3 | 124.4 | 9.6 | 46.0 | 2.85 |
| 5 | TAG5573E | Tecumseh | R22 | 3φ, 400V/50Hz | 6 | 134.8 | — | — | 2.63 |
Note: Specific values may vary depending on test conditions.
Power Compatibility: The entire series is compatible with 380-420V/50Hz/3φ and 460V/60Hz/3φ.
Standard Wide Voltage Design: 3-phase motors operate within 340-440V, adapting to power grids in different regions.
III. Detailed Explanation of Model-Specific Advantages
TAG5546E (3-5/6 HP) — Entry-Level Medium & Low-Temp Refrigeration Choice
The TAG5546E is the entry-level model in the TAG series, with a displacement of 90.2 cm³ and a nominal power of 3-5/6 HP. Using R22 refrigerant and compatible with 3-phase 400V/50Hz power, it draws only 6.6A of operating current. Its COP reaches 2.79 W/W.
With a lower power threshold and a compact 3-cylinder reciprocating structure, this compressor provides a cost-effective solution for small to medium-sized refrigeration equipment. For applications requiring medium and low-temperature refrigeration (at -15°C conditions) such as small cold rooms, commercial freezers, and ice machines, the TAG5546E helps equipment manufacturers control costs while meeting cooling demands, backed by Tecumseh's consistent reliability and low operating current. Its Class F insulated motor ensures high efficiency and stability during prolonged operation, making it especially suitable for commercial environments sensitive to initial investment and with moderate operating loads.
TAG5553E (4-3/7 HP) — Mid-Range Mainstream with Optimal Energy Efficiency
The TAG5553E is the mid-range upgraded model of the TAG series, with displacement increased to 100.7 cm³ and nominal power of 4-3/7 HP. Its operating current is 7.4A, and its COP of 2.86 W/W is the highest in the series, leading in energy efficiency.
This efficiency advantage means the TAG5553E consumes less electricity under the same cooling load, reducing long-term electricity expenses. For medium commercial refrigeration equipment, larger cold rooms, and supermarket cold chain systems requiring continuous operation and high energy efficiency, the TAG5553E achieves the best balance of power and efficiency in the series. It provides stronger cooling than the TAG5546E while lowering operating costs with a higher COP, making it the optimal choice for users seeking "sufficient power with energy savings."
TAG5561E (5 HP) — Standard 5 HP, Market Mainstream
The TAG5561E is the standard 5 HP model in the TAG series, with a displacement of 112.5 cm³. Its operating current is 9A, and COP is 2.78 W/W.
5 HP is one of the most mainstream power specifications in commercial refrigeration. With this "golden power" rating, the TAG5561E has become the most in-demand model in the market. Its large displacement of 112.5 cm³ ensures ample cooling capacity, widely used in ice machines, water chillers, medium cold rooms, and commercial air conditioners. For equipment manufacturers and contractors, the 5 HP specification means the widest compatibility and highest market availability — whether for new equipment matching or old unit replacement, suitable solutions are easily found. Tecumseh's wide voltage design (340-440V) further ensures stable operation under voltage fluctuation conditions.
TAG5568E (5-2/3 HP) — High-Capacity Step-Up Choice
The TAG5568E is a high-power model in the TAG series approaching 6 HP, with a displacement of 124.4 cm³ and nominal power of 5-2/3 HP. Its operating current is 9.6A, and COP is 2.85 W/W.
Compared to the TAG5561E, the TAG5568E's displacement increases by approximately 10.6%, further boosting cooling capacity. For applications requiring more capacity than a standard 5 HP but not yet reaching 6 HP — such as large cold rooms, high-load commercial refrigeration equipment, and industrial cooling systems — the TAG5568E provides a precise "step-up" option. It avoids the dilemma of "5 HP being insufficient while 6 HP is excessive," helping users find the best match between cooling demand and equipment cost. The Class F insulated motor and highly reliable 3-cylinder design ensure stable output under continuous high-load operation.
TAG5573E (6 HP) — Maximum Power Flagship, Ultimate Solution
The TAG5573E is the most powerful flagship model in the TAG series, with a displacement of up to 134.8 cm³ and nominal power of 6 HP. Its COP is 2.63 W/W.
As the top-tier product of the series, the TAG5573E is engineered for applications with the highest cooling demands, delivering the largest displacement and strongest cooling capacity. Whether for large quick-freezing equipment, high-volume cold rooms, industrial-grade refrigeration systems, or high-power commercial air conditioners, the TAG5573E provides abundant power. Although its COP (2.63) is relatively lower in the series, this is normal performance for large-displacement compressors under high-load conditions — in scenarios pursuing extreme cooling capacity, cooling output takes priority over energy efficiency ratio. For users requiring maximum cooling output, the TAG5573E represents the ultimate solution of the Tecumseh TAG series, satisfying the most demanding refrigeration needs with 134.8 cm³ of displacement and Tecumseh's high reliability.
IV. Series-Wide Common Advantages
The following outlines the core value shared by all models from the perspective of the TAG series as a whole:
Features
3-Cylinder Hermetic Reciprocating Structure: Adopts a highly reliable 3-cylinder commercial reciprocating compressor design, featuring a complete hermetic structure including the housing, motor, cylinder block, pistons, starter, and thermal protector.
Large-Volume Motor with Class F Insulation: Equipped with a high-efficiency, low-slip large-volume motor with Class F insulation.
Wide Voltage Design: 3-phase motor operating voltage range of 340-440V, single-phase motor operating voltage range of 180-240V.
R22 Refrigerant: The entire series uses R22 refrigerant.
Evaporation Temperature Range: High backpressure -15°C to +15°C, Low backpressure -40°C to -10°C.
Advantages
The 3-cylinder reciprocating structure offers smoother operation compared to 2-cylinder designs, with reduced vibration and lower noise.
The Class F insulated motor ensures a perfect combination of high cooling capacity and low power consumption.
The wide voltage design enables adaptation to power grids in different regions, especially suitable for areas with large voltage fluctuations such as China.
The hermetic structure provides excellent sealing and high reliability, suitable for long-term continuous operation.
Wide cooling capacity coverage (from 1700W to 17000W) meets diverse needs.
Benefits
Stable and Reliable Operation: Balanced design reduces vibration and noise, ensuring reliable operation under various climatic conditions and supporting long-term trouble-free operation of refrigeration equipment.
Energy Saving and High Efficiency: High-efficiency motors reduce power consumption, saving users long-term operating electricity costs.
Strong Installation Compatibility: Wide voltage design reduces stringent requirements on the power grid and minimizes the risk of failures caused by voltage instability.
Low Maintenance Cost: The hermetic structure reduces leakage and maintenance needs, lowering the total lifecycle cost.
Flexible Selection: A complete power spectrum from 3-5/6 HP to 6 HP ensures the most suitable model can be found for every refrigeration project.
V. Quick Selection Guide by Application Scenario
| Application Scenario | First Choice | Alternative / Upgrade |
| Small to medium cold rooms, commercial freezers | TAG5546E | TAG5553E (larger capacity) |
| Medium cold rooms, supermarket cold chain systems | TAG5553E | TAG5561E (standard 5 HP) |
| Ice machines, water chillers | TAG5561E | TAG5568E (stronger cooling) |
| Large cold rooms, high-load commercial refrigeration | TAG5568E | TAG5573E (maximum capacity) |
| Quick-freezing equipment, industrial refrigeration systems | TAG5573E | — |
Quick Selection:
3-5/6 HP, light to medium load → TAG5546E
4-3/7 HP, efficiency first → TAG5553E (highest COP)
5 HP, highest market demand → TAG5561E (mainstream choice)
5-2/3 HP, high-capacity step-up → TAG5568E
6 HP, maximum power → TAG5573E (flagship choice)
VI. Frequently Asked Questions (FAQ)
Q1: What temperature range are these compressors suitable for?
The evaporation temperature range of Tecumseh AG series compressors covers: High backpressure -15°C to +15°C, Low backpressure -40°C to -10°C. The TAG series is primarily positioned for medium and low-temperature (-15°C conditions) applications.
Q2: What are the energy efficiency ratios (COP) of these compressors?
The COP for each model is: TAG5546E approx. 2.79, TAG5553E approx. 2.86, TAG5561E approx. 2.78, TAG5568E approx. 2.85, TAG5573E approx. 2.63. Among them, the TAG5553E has the highest COP, making it the most energy-efficient choice.
Q3: How do I select the right model for my refrigeration equipment?
It is recommended to follow these three steps:
Determine the cooling load: Calculate the required cooling capacity based on equipment volume, insulation conditions, and target temperature;
Match the power rating: Select from TAG5546E (3-5/6 HP) to TAG5573E (6 HP) according to your needs;
Confirm power supply conditions: Ensure the site has a 3-phase 380-420V/50Hz power supply.
