Sincro GK2 series Steel Alternators 2 poles/1-phase, Brushless/Capacitor

Sincro GK2 Series – Heavy-Duty Steel Alternators

2 Poles | Single Phase | Brushless Capacitor | Self-Regulated | IP23

The Sincro GK2 Series is a high-performance line of 2-pole, single-phase brushless alternators with capacitor excitation, offering powerful, self-regulated voltage output. Designed for reliability in demanding environments, these alternators are housed in heavy-duty steel and are ideal for continuous-duty or mobile generator applications where strength, simplicity, and long-lasting performance are essential.

Delivering up to 31 kVA of clean power, the GK2 series is compatible with multiple coupling types including IM B34, IM B35, and SAE 3/4/5, ensuring flexibility in generator system integration.

Key Features:

• 2-pole operation at 3000 rpm (50 Hz) or 3600 rpm (60 Hz)

• Brushless capacitor excitation for self-regulated, maintenance-free performance

• Short-circuit current > 3 × In for robust protection

• IP23 protection class for use in ventilated enclosures

• Coupling options: IM B34, IM B35, SAE 3, 4, and 5

• Heavy-duty steel casing for enhanced durability

• High efficiency up to 87%

• Ideal for demanding, continuous or mobile applications

Applications:

• Industrial generator sets for high-duty cycles

• Construction site power units and mobile generators

• Agricultural machinery and equipment power

• Rural electrification and backup systems

• Military and emergency power trailers

• OEM integration in power platforms requiring robust steel alternators

Model Overview:

Model: GK 2 LA

• Power @ 50Hz: 20 kVA – Efficiency: 83%

• Power @ 60Hz: 25 kVA – Efficiency: 85%

• Weight: 103 kg (IM B34/B35) / 111 kg (SAE)

Model: GK 2 LB

• Power @ 50Hz: 25 kVA – Efficiency: 85%

• Power @ 60Hz: 31 kVA – Efficiency: 87%

• Weight: 117 kg (IM B34/B35) / 125 kg (SAE)

Standard Voltage: 230V – 50Hz
Excitation Type: Brushless – Capacitor
Protection: IP23
Couplings: IM B34, IM B35, SAE 3–5