Description
The ebm-papst S3G630-AE55-21 (also known as S3G630AE5521) is an industrial high-efficiency EC axial fan assembly featuring a 5-blade sickle-shaped HyBlade impeller with an integrated protective guard grille tailored for short nozzle installations. Powered by a single-phase M3G112-GA electronically commutated motor operating across 200–277 VAC at 50/60 Hz, the unit achieves an impressive nominal speed of 1020 RPM and delivers a maximum free-air delivery of 7,020 CFM (11,930 m³/h) against static pressures up to 0.60 in H₂O (150 Pa). Built with a rugged die-cast aluminum electronics housing, sheet steel composite blades sprayed with PP plastic, sealed ball bearings, and IP55 environmental sealing, this 630 mm (24.8 in) fan delivers exceptional reliability for heavy-duty thermodynamic applications. Advanced integration is facilitated via an onboard terminal box supporting 0–10 V / PWM control, RS-485 MODBUS-RTU networking, active power factor correction (PFC), and an isolated alarm relay contact.
Key Features
- Aerodynamic HyBlade Impeller: Five sickle-shaped composite blades deliver ultra-quiet 7,020 CFM airflow and high pressure with minimal turbulence.
- High-Efficiency EC Motor: Integrated M3G112-GA motor features active PFC, soft starting, and power limiting across single-phase 200-277 VAC.
- Digital & Analog Control: Supports RS-485 MODBUS-RTU, 0-10 VDC/PWM speed control, integrated PID loop, and +10 VDC auxiliary output.
- Heavy-Duty Mechanical Build: Equipped with black powder-coated steel guard grille, die-cast aluminum electronics enclosure, and sealed ball bearings.
- Harsh Environment Protection: Rated IP55 and H2 moisture resistance with rotor-side condensation drainage holes and wide operational thermal thresholds.
- Integrated Diagnostics: Features floating fault status relay, undervoltage/phase failure detection, and internal thermal overload motor protection.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | S3G630-AE55-21 |
| Alternate Part Number | S3G630AE5521 |
| Integrated Motor Model | M3G112-GA |
| Product Series | HyBlade S series |
| Product Category | EC Axial Fans |
| Fan / Component Type | EC axial fan with guard grille for short nozzle |
| Phase & Supply Type | 1~ Single-Phase AC |
| Rated Voltage | 230 VAC |
| Operating Voltage Range | 200 to 277 VAC |
| Frequency | 50 / 60 Hz |
| Speed (RPM) | 1020 RPM |
| Power Rating | 730 W (at max. load) |
| Power Consumption (Ped at Optimum Efficiency) | 0.68 kW |
| Rated Current | 3.20 A (at max. load) |
| Touch Current (IEC 60990) | <= 3.5 mA (measuring circuit Fig. 4, TN system) |
| Airflow (Free Air) | 7020 CFM (11930 m³/h) |
| Max. Back Pressure | 0.60 in H₂O (150 Pa) |
| Pressure Increase (pfs at Optimum Efficiency) | 0.490 in H₂O (122 Pa) |
| Sound Pressure Level (LpAin) | 69 dB(A) (at 1 m distance, free air) |
| Sound Power Level (LwAin) | 76 dB(A) (intake side, free air) |
| Airflow Direction | Direction ‘V’ |
| Direction of Rotation | Counterclockwise, viewed toward rotor |
| Impeller Size | Ø 630 mm (24.8 in) |
| Number of Blades | 5 |
| Motor Size | 112 |
| Blade Material | Press-fitted sheet steel blank, sprayed with PP plastic |
| Guard Grille Material | Steel, coated with black plastic (RAL 9005) |
| Electronics Housing Material | Die-cast aluminum, painted black |
| Terminal Box Material | PP plastic |
| Rotor Surface | Painted black |
| Bearing Type | Maintenance-free sealed ball bearings |
| Installation Position | Shaft horizontal or rotor on bottom (rotor on top on request) |
| Condensation Drainage Holes | On rotor side |
| Operating Mode / Duty Cycle | S1 (Continuous operation) |
| Overall Efficiency (ηes) | 44.4% (Req. 2015: 32.6%) |
| Efficiency Grade (N) | 51.8 (Req. 2015: 40) |
| Specific Ratio | 1.00 |
| Weight | 15.2 kg (33.51 lbs) |
| Termination & Cable Specs | Integrated terminal box with cable glands (tightening torque 1.8 ± 0.3 Nm) |
| Wiring Pinout / Connection | 1 & 2: PE; 3: N; 5: L; 6: NC (Status relay, 250 VAC / 2 A); 7: COM; 8: GND; 9: RSA (MODBUS); 10: RSB (MODBUS); 11: 0-10 V / PWM input; 12: +10 VDC output (max. 10 mA) |
| Control / Signal Features | RS-485 MODBUS-RTU, 0-10 VDC / PWM input, Integrated PID controller, 10 VDC supply output, Active PFC, Soft start |
| Motor Protection | Thermal overload protector (TOP) internally connected, power limiter, motor current limitation, line undervoltage/phase failure detection |
| Electrical Protection Class | Class I (with customer connection of protective earth) |
| Insulation Class | Class F |
| Ingress Protection (IP) | IP55 |
| Moisture / Environmental Class | H2 |
| Operating Temperature Range | -25°C to +60°C (-13°F to +140°F); occasional start-up down to -40°C permissible |
| Storage / Transport Temperature Range | -40°C to +80°C (-40°F to +176°F) |
| EMC Immunity to Interference | According to EN 61000-6-2 (industrial environment) |
| EMC Circuit Feedback | According to EN 61000-3-2/3 |
| EMC Interference Emission | According to EN 61000-6-3 (household environment) |
| Standards & Compliance | EN 61800-5-1, CE, UKCA, ErP 2015 (EU 327/2011), CSA C22.2 No. 77 + CAN/CSA-E60730-1, UL 1004-7 + 60730-1, CCC, EAC |
Applications
The ebm-papst S3G630-AE55-21 EC axial fan is engineered specifically for condenser coils, commercial air-cooled liquid chillers, and industrial refrigeration condensing units. It integrates seamlessly into agricultural climate controllers, rooftop HVAC air handling packages, and heat pump outdoor heat rejection modules. Facilities and maintenance teams also deploy this assembly for data center adiabatic dry cooler arrays and industrial process ventilation systems requiring resilient Modbus automation.
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