Schneider Electric iEM3300 Series Watt-Hour Meters

1. MID Compliance

The iEM3000 series meters comply with the European Measuring Instruments Directive (MID) 2004/22/CE when installed according to instructions in DOCA0038EN (available on the Schneider Electric website). The CE declaration document is also available by searching for ECDiEM3000.

Models covered: iEM3310, iEM3335, iEM3355, iEM3365, iEM3375.

2. Dimensions

The meters have the following approximate dimensions:

• Width: 126.0 mm (4.96 in)
• Height: 93.8 mm (3.70 in)
• Depth: 63.8 mm (2.51 in)
• Panel cutout: 69.3 mm (2.73 in)
• Mounting depth: 103.2 mm (4.06 in)
• Overall depth: 108.4 mm (4.27 in)

There are versions with and without communications capabilities.

3. Safety Precautions

DANGER: HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

Follow these critical safety instructions to avoid death or serious injury:

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices (e.g., NFPA 70E in the USA or local standards).
• Turn off all power supplying this device before working on it.
• Always use a properly rated voltage sensing device to confirm that all power is off.
• Do not exceed the device’s ratings for maximum limits.
• Do not use this device for critical control or protection applications where human or equipment safety relies on the operation of the control circuit.
• Do not allow the total additive current flowing through the device to exceed 125 A.

4. Overview of Components

The meters feature various connection terminals and indicators:

• A Digital input
• B Digital output
• C Communications port (refer to section 11 for details)
• D Communications LED (refer to section 11 for details)
• E Pulse output (available on iEM3310 only)
• F Status LED: Indicates power status (on/off) and errors.
• G Energy pulse LED: Flashes 200 times per kWh to indicate energy consumption.
• H Display: For measurement and configuration.
• I Cancel button ([ESC])
• J Confirm button ([OK])
• K Scroll button
• L Terminals: L1, L1', L2, L2', L3, L3', N, N'.
• M Sealing points (4)
• N Sealable covers (2)

5. Installation

Refer to the installation diagrams for proper setup.

6. Wiring

The meters support various wiring configurations, including 1-phase (1PH, 1PH2W, 1PH3W, 1PH4W) and 3-phase (3PH3W, 3PH4W). Ensure correct wire sizes (e.g., 1.5 mm² / 16 AWG for digital I/O, 50 mm² / 1 AWG for power) and torque specifications (e.g., 0.5 Nm for digital I/O, 3.5 Nm for power) are used.

Fuses and Disconnect Switch: Clearly label the disconnect mechanism and install it within easy reach. Fuses/breakers must comply with local/national codes, be rated for installation voltage and fault current, and sized for connected loads. A fuse for the neutral is required if the source neutral is not grounded.

Important Safety Note: For 1PH4W Multi L-N wiring type, do not connect N' to the load.

7. Display Overview

The display shows various measurements and settings:

• A Measurement / Parameter
• B Ea / Er: Active / reactive energy values.
• C Value / Setting
• D Active tariff
• E Scroll: Navigate screens or lists.
• F Confirm: Enter selections or access more screens.
• G Cancel: Return to the previous screen.
• H Date and time
• I Units
• J Configuration mode icon
• K Multi-Tariffs indicator
• L Configuration Mode Entry: Press and hold [OK] + [ESC].
• M List/Numeric Setting Input: Use scroll/OK buttons.

8. Initial Clock Setting

On initial power-up, set the Date & Time and save the settings.

9. Basic Configuration

Enter configuration mode to set up metering, communications, and security parameters. Refer to Section 7 for detailed instructions.

10. Verification

After basic configuration, navigate to real-time data screens to verify readings are correct.

11. Communications

Communication LED:

• Off: Inactive.
• Flashing: Active.

Configure basic communication settings (Modbus, M-Bus, BACnet, LonWorks) before connecting to the network (see section 9).

LonWorks: Ports are polarity-independent. Features include LonWorks service pin and Neuron ID.

LED Status Meanings:

• Service (Red LED): Off = Configured (online/offline); On = Unconfigured or defective memory; Flashing = Unconfigured with application.
• Communication (Green LED): Off = Inactive; Flashing = Active.

12. Troubleshooting

If LEDs indicate an error, navigate to the diagnostics screen to find the code. Refer to Section 7 for navigation and configuration. Contact Technical Support if problems persist.

Common issues and solutions include:

• LCD Display Not Visible: Check/adjust contrast.
• Buttons Not Functioning: Restart the meter.
• Metering Stops (EEPROM Error/Calibration Table Missing): Enter configuration mode and perform "Reset Config".
• Metering Continues (Mismatches, Phase Sequence, Voltage/Current, Date/Time Reset, Pulse Missing, Clock Function): Follow specific instructions for each code (e.g., correct settings, check connections, set date/time, restart).

13. Specifications

Power Supply: Wye/Delta configurations, 100-480V, 50/60Hz, Category III, Max current 125A.

Digital Input: Type 1 (IEC61131-2), 0-5V (Off), 11-40V (On), nominal 24V DC.

Digital Output: Type A, 5-40V DC, 50mA max.

Pulse Output: Optical coupler, configurable pulses/kWh, 5-30V DC, IEC 62053-31 compatible (S0 format).

Installation: Operating temp -25°C to +60°C (MID: +55°C), Storage temp -40°C to +85°C, Humidity 5-95% RH, IP40 front/IP20 casing, Altitude <3000m, Pollution degree 2, IK08 impact rating. Indoor use only.

MID: Electromagnetic environment E2, Mechanical environment M1.

Safety Instructions

Read instructions carefully. Electrical equipment installation, operation, service, and maintenance should only be performed by qualified personnel. Schneider Electric is not responsible for consequences arising from improper use.

DANGER indicates an imminently hazardous situation that will result in death or serious injury if not avoided. Obey all safety messages to avoid injury or death.