Electrical test bench under one raking light: a unit clamped in its fixture at the left of the frame with current meters and a load bank beside it, the right side falling into unlit dark

Group 01 · Electrical

Electrical specifications

Metering input from 90V to 350V at a 1V scale. Total current at a 0.1A scale. Both read at ±1% plus one digit, and the energy total is kept at 1 grade.

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Meter input: 90V–350V
Voltage scale: 1V
Current scale: 0.1A
Accuracy: ±1%+1 digit
Energy grade: 1

Line by line

The electrical parameter set

Two columns, one row per parameter, so a design file can be filled from top to bottom without reading prose. Every value here is a published figure.

Input current: 10A–32A
Output current: 10A–16A
Operating voltage: 110V~250V AC
Wide-range input: 180–265V
Operating frequency: 50Hz~60Hz
Metering input range: 90V~350V
Voltage scale: 1V
Total current scale: 0.1A
Voltage accuracy: ±1%+1 digit
Current accuracy: ±1%+1 digit
Power accuracy: ±1%
Energy grade: 1 grade
Energy scale: 0.1 kWh
Surge protection: Fitted on the wide-range input
Rated example: AC 415V, 20 × 20A
Interface: 10/100M Ethernet × 1 + RS485 × 1
Protocols: SNMP · Modbus · embedded web server
Alarm output: SMTP on threshold
Ambient sensor range: -30°C~100°C, 1°C resolution
Humidity monitoring: 1%~99%

Protection

Two layers on the input

The wide-range input carries surge and lightning protection. Overcurrent protection is by breaker or hydraulic-magnetic device, depending on the series.

SurgeFitted
OvercurrentBreaker or hydraulic
Input window180–265V
Frequency50Hz–60Hz

Reporting

Two ports, two protocols

Ethernet10/100M × 1
SerialRS485 × 1
SNMPYes
ModbusYes
Web serverEmbedded

From requirement to mechanism

Why a 90V to 350V meter window matters

A metering front end sized for a nominal 230V line loses its reading on a sag, and an under-range front end clips on a three-phase 415V build. A 90V to 350V window keeps the reading in range on both, at a 1V scale, so the same reporting line is usable across the range without a second part number.

Window low end: 90V
Window high end: 350V
Scale inside the window: 1V
Typical operating band: 110V~250V AC
Wide-range input band: 180–265V
Rated example: AC 415V

Where a project sits outside these bands, the four-line request is checked against them before a drawing is issued.

Test leads and a clamp meter on the conductor field of a unit under load, the meter and its connectors held in the right of the frame with the dark bench to the left

Meter row

One row per meter

Each row is a meter on the unit: what it reads, the value it reports, the scale it reports at, and where the reading can be taken from. The on-board display and the network interface publish the same number.

Voltage 1V Input range 90V to 350V; line and phase readings on three-phase builds OLED · SNMP · Modbus

Total current 0.1A ±1% plus one digit; per feed, summed across the outlet group OLED · SNMP · Modbus

Power ±1% Active power per feed, at the same percentage as current and voltage OLED · SNMP · Modbus

Energy 0.1kWh Energy total at 1 grade, which is the figure a billing line is written against OLED · SNMP · Modbus

Ambient temperature 1°C Optional sensor, -30°C to 100°C, for the inlet or the rack front OLED · SNMP · SMTP

Humidity 1% Optional sensor covering 1% to 99%, reported beside temperature OLED · SNMP · SMTP

Main switch state On / Off Shown on the local display so a technician at the rack sees it without a browser OLED

Network address IPv4 Current IP on the local display, which shortens a service visit OLED

Alarm thresholds raise an SMTP message through the embedded web server. Event storage keeps up to 20,000 entries with an RTC that holds through power loss.

Electrical release path

From the electrical request to the test record

Three stages, in order. Each one ends in a document, and the document is the input to the next stage — so an electrical change is always traceable to the revision that carried it.

Electrical request

Current per feed, operating voltage, frequency and metering depth are written down. Protection type is chosen here, not at the drawing stage.

Output: electrical request · buyer supplies current, voltage, frequency

Range check

The request is checked against the published bands: 10A to 32A, 110V to 250V AC, 50Hz to 60Hz and the 90V to 350V meter window.

Output: matched parameter list · we supply the check

Test record

Continuity, polarity, insulation and function are tested on every unit, and the metering readings are compared against a reference and recorded per line.

Output: test record · travels with the shipment

Electrical request

Send the electrical lines, get the sheet

Current per feed and metering depth are the two lines that fix the electrical build. Add the outlet combination and the switching scope, and the reply carries a specification sheet per reporting line.

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