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GSCR Series Float Battery Chargers 12 and 24 volt Single-Phase

GNB Industrial Power GSCR Series of industrial float chargers is designed to automatically control charging rates for a wide variety of battery types and to simultaneously provide full-rated output
for both continuous and intermittent dc loads.

The chargers are constant voltage devices with automatic current limiting. Voltage regulation and current limiting are controlled by solid-state integrated circuitry to assure maximum performance in minimum space.

The GSCR Series is ideally suited to utility, communications and other stationary charger applications.

Component Selection
Electronic and electrical components are substantially derated to assure long life and reliability. Typical MTBF is100,000 hours minimum. Components are selected or designed to provide a system life expectancy in excess of 30 years.

Modular Construction
Control circuits, alarm circuits and electrical sub-assemblies are printed circuit board wired or modularized with plug and socket connections for easy serviceability.

Standard Sub-assemblies
Control modules and many electrical sub-assemblies are standardized across the entire range of charger sizes. This minimizes spare parts inventory and simplifies maintenance.

Front panels are recessed to prevent accidental damage to meters and controls. Standard cabinets are NEMA-1 enclosures of heavy-gauge phosphatized steel with an attractive, long-lasting acrylic enamel finish.

Easy Troubleshooting
A complete service manual, color-coded wiring, test-point identification and circuit-symbol labeling of internal components make troubleshooting easy.

Ease of Adjustment
Tap adjustments are not required. Output float voltage, equalize voltage, current limit and alarm levels are potentiometer adjustable.

Ease of Access
Internal components and connections are easily accessible and/or removable through a hinged front door that opens approximately 180 degrees for easy serviceability.

Ease of Installation
Cabinets are floor, wall or rack mountable and equipped with knockouts for cable or conduit entrance. Input, output and remote alarm connections are wired to easily accessible, internal terminal blocks.


AC Input
Standard transformers are available with taps for nominal voltages as listed below.

Single-Phase Voltages:
120/220 240V 47 63Hz
480V 57 63Hz
120/208 240V 47 63Hz(optional)

Three-Phase Voltages:
208 240V 57 63Hz
380 416V 47 63Hz

Part Number Description
GSCR-012-S-006 12V, 6A, 1 Ph.
GSCR-012-S-012 12V, 12A, 1 Ph.
GSCR-012-S-016 12V, 16A, 1 Ph.
GSCR-012-S-020 12V, 20A, 1 Ph.
GSCR-012-S-025 12V, 25A, 1 Ph.
GSCR-012-S-030 12V, 30A, 1 Ph.
GSCR-012-S-035 12V, 35A, 1 Ph.
GSCR-012-S-040 12V, 40A, 1 Ph.
GSCR-012-S-050 12V, 50A, 1 Ph.
GSCR-012-S-060 12V, 60A, 1 Ph.
GSCR-012-S-075 12V, 75A, 1 Ph.
GSCR-012-S-100 12V, 100A, 1 Ph.
GSCR-024-S-006 24V, 6A, 1 Ph.
GSCR-024-S-012 24V, 12A, 1 Ph.
GSCR-024-S-016 24V, 16A, 1 Ph.
GSCR-024-S-020 24V, 20A, 1 Ph.
GSCR-024-S-025 24V, 25A, 1 Ph.
GSCR-024-S-030 24V, 30A, 1 Ph.
GSCR-024-S-035 24V, 35A, 1 Ph.
GSCR-024-S-040 24V, 40A, 1 Ph.
GSCR-024-S-050 24V, 50A, 1 Ph.
GSCR-024-S-060 24V, 60A, 1 Ph.
GSCR-024-S-075 24V, 75A, 1 Ph.
GSCR-024-S-100 24V, 100A, 1 Ph.
GSCR-048-S-006 48V, 6A, 1 Ph.
GSCR-048-S-012 48V, 12A, 1 Ph.
GSCR-048-S-016 48V, 16A, 1 Ph.
GSCR-048-S-020 48V, 20A, 1 Ph.
GSCR-048-S-025 48V, 25A, 1 Ph.
GSCR-048-S-030 48V, 30A, 1 Ph.
GSCR-048-S-035 48V, 35A, 1 Ph.
GSCR-048-S-040 48V, 40A, 1 Ph.
GSCR-048-S-050 48V, 50A, 1 Ph.
GSCR-048-S-075 48V, 75A, 1 Ph.
GSCR-048-S-100 48V, 100A, 1 Ph.



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