Bachmann GM260 Grid Measurement Module

Overview

The Bachmann GM260 is a Grid Measurement Module designed to provide fast, reliable, and safe measurement for three-phase electrical networks. It is ideal for operational measurements on machines and energy monitoring in plants and buildings.

Technical Specifications

Model Number: GM260
Manufacturer: Bachmann
Type: Grid Measurement Module

Measurement Capabilities

The GM260 measures the following:

• Current

• Voltage

• Frequency

• Power

• Power Factor

• Phase Angle

Voltage Measurement

• Number of Inputs: 3

• Maximum Rated Voltage:

• UL-L, RMS: 480 Vrms

• UL-N, RMS: 277 Vrms

• Voltage Measuring Range:

• UL-L, RMS: 70 to 625 Vrms

• UL-N, RMS: 36 to 361 Vrms

• Accuracy: ≤ ±0.1%

• Continuous Overload:

• UL-L, RMS: 680 Vrms

• UL-N, RMS: 390 Vrms

• Short-term Overload:

• UL-L, RMS: 1039 Vrms

• UL-N, RMS: 600 Vrms

• Input Impedance: 2 MΩ

Current Measurement

• Number of Inputs: 6

• Accuracy: ≤ ±0.3%

• Current Transformer Rated Current: 1 Arms

• Current Measuring Range: 0.01 to 1.2 Arms

• Continuous Overload: 1.2 Arms

• Short-term Overload: 20 Arms

• Apparent Ohmic Resistance: 75 mVA

Frequency Measurement

• Rated Frequency: 50/60 Hz

• Reference Range: 45 to 65 Hz

• Accuracy: ≤ ±0.010 Hz

• Measurement Interval:

• 50 Hz: 20 ms

• 60 Hz: 16.67 ms

Power Measurement

• Measured Values: Active, reactive, and apparent power per phase and as total

• Accuracy: ≤ ±0.4%

• Calculation Method: DIN 40110-2

• Measurement Interval: Updated at each positive zero crossing