Current Shunt (ST-50) For Digital Multimeters

Lutron 50 A / 50 mV Current Shunt (ST-50) For Digital Multimeters

The Lutron ST-50 is a precision 50 amp shunt that converts high current into a low-level voltage signal for safe measurement. With a fixed output of 1 mV per 1 amp, it enables any compatible DMM or meter with a 50 mV range to measure up to 50 A in both DC and AC applications. This shunt is ideal for extending the current measurement capability of test instruments without requiring direct high-current input.

• Extends meter current range: Allows standard meters to read up to 50 A in DCA or ACA.
• Fixed conversion output: 1 mV per 1 A for both ACA and DCA.
• High accuracy: ± (0.8 percent plus 0.2 mV).
• Overload protection: Rated for 100 A for one minute.
• Wide application: Suitable for power supplies, charging systems, battery monitoring, inverters, and high-current circuits.
• Compact and lightweight: Easy to integrate into fixed or portable test setups.

Specifications

• Measurement Range: 0 to 50 DCA and 0 to 50 ACA.
• Output Scaling: ACA: 1 AC mV per 1 ACA. DCA: 1 DC mV per 1 DCA.
• Accuracy: ± (0.8 percent plus 0.2 mV).
• Overload Protection: 100 A for one minute.
• Operating Temperature: 0°C to 50°C (32°F to 122°F).
• Operating Humidity: Less than 90 percent RH.
• Dimensions: 135 × 35 × 30 mm (5.3" × 1.4" × 1.2").
• Weight: 53 g (0.12 lb).

Included Items

• Red and black connection leads.
• Instruction manual.

Optional Components

• Compatible DMM models with 50 mV range.
• Shielded measurement leads for high-noise environments.
• Inline mounting hardware or terminal adapters.