Description
The ebm-papst G2E120-AR77-01 (also known as G2E120AR7701) is an industrial single-inlet forward-curved AC centrifugal blower engineered with a rugged die-cast aluminum scroll housing and an integrated mounting flange. Driven by an internal M2E068-BF external rotor motor, this 120 mm class blower operates on single-phase 230 VAC (50/60 Hz), delivering an air performance of up to 260 m³/h (153.0 CFM) at nominal speeds of 2350 to 2450 RPM. Built with a galvanized sheet-steel impeller and maintenance-free dual ball bearings, it is rated for continuous S1 duty in horizontal shaft orientations. Comprehensive system safety is ensured through an internal thermal overload protector (TOP), IP44-rated environmental sealing, and a robust 4-wire PVC lead connection.
Key Features
- Die-Cast Scroll Housing: Heavy-duty die-cast aluminum housing with integral discharge flange ensures rigid mounting and high acoustic damping.
- Optimized Forward Impeller: Galvanized sheet steel forward-curved impeller engineered for high static pressure generation in demanding draft circuits.
- Precision Motor Integration: Compact internal M2E068-BF single-phase motor utilizes a 2.0 µF run capacitor for dependable continuous operation.
- Integrated Thermal Protection: Internally wired thermal overload protector prevents motor winding damage during sustained back-pressure stalls.
- Industrial Ingress Sealing: Rated IP44 with Class B insulation system to protect internal electro-mechanical components against solid particulates.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | G2E120-AR77-01 |
| Alternate Part Number | G2E120AR7701 |
| Integrated Motor Model | M2E068-BF |
| Product Series | G2E120 |
| Product Category | AC Blower Fans |
| Fan / Component Type | Single-inlet forward-curved centrifugal blower with housing (flange) |
| Phase & Supply Type | 1~ Single-Phase AC |
| Rated Voltage | 230 VAC |
| Frequency | 50 Hz / 60 Hz |
| Speed (RPM) | 2350 RPM (50 Hz) / 2450 RPM (60 Hz) |
| Power Rating | 80 W (50 Hz) / 100 W (60 Hz) |
| Rated Current | 0.35 A (50 Hz) / 0.44 A (60 Hz) |
| Starting Current | 0.47 A (50 Hz) / 0.47 A (60 Hz) |
| Run Capacitor | 2.0 µF / 450 VDB |
| Airflow | 153.0 CFM (260.0 m³/h) at 50 Hz Free Air |
| Max. Static Pressure | 1.12 in H₂O (280 Pa) at 50 Hz |
| Min. Back Pressure | 0 in H₂O (0 Pa) |
| Airflow Direction | Centrifugal (axial air intake, radial air discharge) |
| Size / Impeller Diameter | 120 mm (4.72 in) |
| Dimensions (L × H × D) | 178.0 × 193.5 × 115.0 mm (7.01 × 7.62 × 4.53 in) |
| Housing Material | Die-cast aluminum |
| Impeller Material | Sheet steel, galvanized |
| Rotor Surface | Unpainted |
| Bearing Type | Maintenance-free dual ball bearings |
| Direction of Rotation | Clockwise, viewed toward rotor |
| Installation Position | Shaft horizontal |
| Condensation Drainage Holes | None |
| Operating Mode / Duty Cycle | S1 Continuous operation |
| Weight | 1.94 kg (4.28 lbs) |
| Termination & Cable Specs | PVC cable with 4x crimped splices |
| Wiring Pinout / Connection | U1 = Blue, Z = Brown, U2 = Black, PE = Green/Yellow |
| Motor Protection | Thermal overload protector (TOP) internally connected |
| Electrical Protection Class | Class I (with customer connection of protective earth) |
| Touch Current (IEC 60990) | < 0.75 mA (measuring circuit Fig. 4, TN system) |
| Insulation Class | Class B |
| Ingress Protection (IP) | IP44 (installation- and position-dependent) |
| Moisture / Environmental Class | H0 – dry environment |
| Operating Ambient Temperature | -25 to +45 °C (-13 to +113 °F) at 50 Hz / -25 to +55 °C (-13 to +131 °F) at 60 Hz |
| Storage Temperature Range | -40 to +80 °C (-40 to +176 °F) |
| Standards & Compliance | CE, UKCA, CCC, EAC, EN 60335-1, RoHS3 Compliant |
Applications
The ebm-papst G2E120-AR77-01 centrifugal blower is purpose-engineered as a primary forced-draft and combustion air supply fan for commercial biomass boilers, pellet stoves, and solid-fuel heating systems. Its rugged aluminum flanged housing also excels in ducted process ventilation, reflow soldering exhaust systems, and packaging shrink-tunnel air circulation plenums. Furthermore, plant engineers deploy this blower as a reliable OEM replacement unit within drying ovens, industrial heat exchanger cabinets, and commercial kitchen ventilation ductwork requiring continuous duty under sustained aerodynamic back-pressure.
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