The GR(B) series is the basic charger available in the TECNED GR product family with limited options. It strictly adheres to a truly industrial design with convection cooling and is built for 20 years operational life-time.

The TECNED GR (B) Rectifier / Charger series is available from 24Vdc to 650Vdc nominal with up to 100A output in a single enclosure.

TECNED rectifier/chargers are based on Thyristor + Concept (SCR+IGBT) technology with a galvanic separation transformer, input PF 0.98, low input harmonics (<10%), standard low DC ripple (< 2% for 3-phase systems).

Like all GR-models, the GR(B)-series is short circuit proof, includes high DC protection as standard to protect the load and delivers a steady output voltage under al operating conditions.

Optional built-in batteries up to 9x 12V/100Ah for 110Vdc installations can provide back-up for small and medium installations. In combination with 12V/40AH and 12V/75AH batteries, up to 8 x 2P distributions MCB’s can be fitted for easy implementation.

The GR(B)-series is supplied in a floor standing sheet steel cabinet with bottom cable entry.

Features and Benefits

• High power factor IGBT/SCR conversion technology with very low input THDI and build-in galvanic separation transformer.

• Charging characteristic according DIN 41773 (UI)

• High reliable due to failsafe control system and protection circuits

Specifications

• Input voltage single phase: 110 / 120 / 200 / 220 / 230 / 240 / 277V, (2W+E)

• Input voltage three phase: 208 / 220 / 240 / 380 / 400 / 415 / 480V, (3W+E)

• Input voltage range: +15%/-20% (20% start battery operation)

• Nominal input frequency: 50/60 Hz

• Power factor: 0.98

• Efficiency: Up to 95% (depending on DC bus voltage)

• Nominal output voltage: 24, 48, 60, 110 (125), 380 Vdc

• Battery charging characteristic: IU (DIN 41773), T° compensated floating voltage