The Multi-Circuit Meter is a compact, DIN-rail–mounted energy monitoring solution designed for high-density, multi-circuit metering in commercial and industrial switchboards.

Monitors up to 32 circuits per stack with compact, plug-and-play installation for efficient energy management.

The ACG-131 Multi-Circuit Smart Energy Meter offers a sophisticated, scalable way to measure and manage power across up to 32 circuits with a single stack, making it ideal for commercial and industrial sub-metering, tenant billing, energy audits, and power quality monitoring. Built for retrofit projects, it provides reliable data collection with effortless integration and fast installation.

Main Features

Up to 32 circuits per stack with 1× Master and 31× Sub-meters
Class 0.5S active-energy accuracy (IEC 62053-22) for billing use
Accepts Rogowski coils or 0.333 V split-core CT input (plug-and-play via RJ12)
Measures voltage, current, active/reactive/apparent power & energy, demand, THD (1–50th), and more
Modbus-RTU, RS-485, 2-wire, up to 38.4 kbps for easy BMS/SCADA integration
Wide auxiliary supply range (95–265 VAC or 18–36 VDC for Master); Sub-meters powered via bus
Compact DIN-rail mounting, lightweight (Master: 122 g; Sub-meter: 59 g)
Robust operation: -25°C to +70°C, IP20 protection, IEC 61000-4 Level IV EMC immunity
Relay output & opto-isolated digital input for alarms/tariff switching
Designed for efficient installation without interrupting live power circuits

Technical Specifications

Mounting type	DIN Rail
Model No.	Master: ACG-131M, Submeter: ACG-131S
Current Sensor Type	Rogowski coil; accepts 0.333 V voltage-output split-core CTs
Wiring Systems Supported	3P4W 3CT, 3P3W 3CT, 3P3W 2CT, 1P3W, 1P2W
Display	None
Current Measurement Input Voltage	0–900 mVAC peak, 636 mV RMS
Rogowski Coil Ranges	50 mV/kA @ 50 Hz (0–12,000 A), @ 60 Hz (0–10,000 A) 85 mV/kA @ 50 Hz (0–7,000 A), @ 60 Hz (0–6,000 A) 100 mV/kA @ 50 Hz (0–6,000 A), @ 60 Hz (0–5,000 A)
Voltage Measurement Range	0–600 VAC (max 720 VAC)
Digital I/O	Relay: 1-circuit electromagnetic relay, 3A 30V DC / 3A 250V AC Input: Optocoupler isolation (5 kVrms)
Communication	RS-485 (Modbus-RTU, two-wire half-duplex, 2400–38,400 bps)
Power Supply	Master: 95–265 VAC or 18–36 VDC; Sub: 5 VDC (powered by Master)
Max Power Consumption	= 3.5 VA
Operating Temperature	-25 °C to +70 °C
Protection	IP20
Dimensions	Master: 9.3 × 8.0 × 3.6 cm Sub: 9.3 × 8.0 × 1.81 cm
Weight	Master: 122 g; Submeter: 59 g
Colour	White
Application	Energy monitoring, power analysis, tenant billing, audits
Compliance	IEC 62053-22 Class 0.5S, IEC 61000-4 Level IV EMC immunity

Key Advantages

True plug-and-play installation for minimal downtime and lower costs
Small DIN-rail footprint and lightweight build for dense, space-restricted switchboards
Reliable, revenue-grade data for precise energy usage and tenant billing

To contact Autech Control Group about Multi-Circuit Meter use Get a quote.

Main Features

Up to 32 circuits per stack with 1× Master and 31× Sub-meters
Class 0.5S active-energy accuracy (IEC 62053-22) for billing use
Accepts Rogowski coils or 0.333 V split-core CT input (plug-and-play via RJ12)
Measures voltage, current, active/reactive/apparent power & energy, demand, THD (1–50th), and more
Modbus-RTU, RS-485, 2-wire, up to 38.4 kbps for easy BMS/SCADA integration
Wide auxiliary supply range (95–265 VAC or 18–36 VDC for Master); Sub-meters powered via bus
Compact DIN-rail mounting, lightweight (Master: 122 g; Sub-meter: 59 g)
Robust operation: -25°C to +70°C, IP20 protection, IEC 61000-4 Level IV EMC immunity
Relay output & opto-isolated digital input for alarms/tariff switching
Designed for efficient installation without interrupting live power circuits

Technical Specifications

Mounting type	DIN Rail
Model No.	Master: ACG-131M, Submeter: ACG-131S
Current Sensor Type	Rogowski coil; accepts 0.333 V voltage-output split-core CTs
Wiring Systems Supported	3P4W 3CT, 3P3W 3CT, 3P3W 2CT, 1P3W, 1P2W
Display	None
Current Measurement Input Voltage	0–900 mVAC peak, 636 mV RMS
Rogowski Coil Ranges	50 mV/kA @ 50 Hz (0–12,000 A), @ 60 Hz (0–10,000 A) 85 mV/kA @ 50 Hz (0–7,000 A), @ 60 Hz (0–6,000 A) 100 mV/kA @ 50 Hz (0–6,000 A), @ 60 Hz (0–5,000 A)
Voltage Measurement Range	0–600 VAC (max 720 VAC)
Digital I/O	Relay: 1-circuit electromagnetic relay, 3A 30V DC / 3A 250V AC Input: Optocoupler isolation (5 kVrms)
Communication	RS-485 (Modbus-RTU, two-wire half-duplex, 2400–38,400 bps)
Power Supply	Master: 95–265 VAC or 18–36 VDC; Sub: 5 VDC (powered by Master)
Max Power Consumption	= 3.5 VA
Operating Temperature	-25 °C to +70 °C
Protection	IP20
Dimensions	Master: 9.3 × 8.0 × 3.6 cm Sub: 9.3 × 8.0 × 1.81 cm
Weight	Master: 122 g; Submeter: 59 g
Colour	White
Application	Energy monitoring, power analysis, tenant billing, audits
Compliance	IEC 62053-22 Class 0.5S, IEC 61000-4 Level IV EMC immunity

Key Advantages

True plug-and-play installation for minimal downtime and lower costs
Small DIN-rail footprint and lightweight build for dense, space-restricted switchboards
Reliable, revenue-grade data for precise energy usage and tenant billing

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To contact Autech Control Group about Multi-Circuit Meter use Get a quote.

ACG-131-Multi-Circuit-Meter-Datasheet-v1.2(1.22MB)

ACG-131-Manual-V1.2-EN(1.98MB)

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Supplier

Supplier: Autech Control Group

Distribution: Australia & New Zealand Only

Location: Oakleigh, VIC

Customers: Automation, Electrical, Solar and Instrumentation

Trade With Confidence. The supplier of this item is approved as a Verified Supplier. Business registration, contact details and locations have been verified. Autech Control Group are also proudly displaying these credentials:

Established:

2014

Employees:

1-5

Customers:

Automation, Electrical, Solar and Instrumentation

Memberships:

WIOA , IICA

Distribution:

Australia & New Zealand Only

Location:

Oakleigh , VIC