Gossen-Metrawatt Konstanter SlP 120-40 Stabilized DC Power Supply

The Gossen-Metrawatt Konstanter SLP 120-40 is a single-output laboratory DC power supply engineered for research, development, production, education, and service applications. It maintains stable output through constant voltage (CV) or constant current (CC) modes, delivering 120 W across a broad voltage and current range via auto-ranging capability. The unit combines precision control with multiple protection schemes and flexible interfacing options.

Technical Specifications

• Nominal output power: 120 W


• Voltage setting range: 0 to 40 V


• Current setting range: 0 to 6 A


• Input: 230 V AC ±10%, 50 Hz / 60 Hz


• Output connectors: Two safety connectors (front panel); screw clamp terminals (rear panel)


• Display: Dual 3½-digit LED displays for voltage and current readout with mode indicators


• Transient response: Less than 1 ms


• Protection: Over-temperature, overvoltage (OVP), and overcurrent (OCP) with user-replaceable fuse


• Dimensions: 102 mm H × 221.5 mm W × 397.5 mm D


• Weight: 2.8 kg

Key Features

• Auto-ranging output maintains 120 W across the full voltage/current envelope


• Dual control modes (CV/CC) with mode indication via front-panel display


• Analog interface on rear panel: 0 to 10 V control signals; SIG1 OUT (output on/off status); SIG2 OUT (CV/CC mode status); TRG IN+ digital control input


• Automatic remote sensing activation when sensor cables are connected


• Master/slave configuration capability - multiple units can be linked with load current equally shared


• Mains output passthrough allows up to three SLPs to share a single input via mains jumper cable accessory


• solid metal housing with sealed top/bottom, rubber feet, cable spacer, and 19" rack mounting compatibility via adapter

Typical Applications Laboratory test bench operation, bench-top research, component testing, circuit validation, educational demonstrations, and production testing environments.

Compatibility & Integration Analog interface provided as standard. Rear-panel screw terminals enable integration into automated test systems. Multiple units support distributed power architectures through master/slave linking.