Schneider Electric RM22UA33MR - Technical Specifications
General Parameters
Model: RM22UA33MR

Product Line: Telemecanique RM22 Series

Type: 3-Phase Voltage & Current Monitoring Relay

Enclosure Rating: IP20 (front panel)

Electrical Characteristics
Supply Voltage:

Operating Range: 208-480V AC (50/60Hz)

Consumption: ≤5VA

Input Measurements:

Voltage:

Range: 50-480V AC phase-to-phase

Accuracy: ±1% of full scale

Current (via external CTs):

Options: 1A or 5A secondary

Burden: ≤0.2VA

Frequency Range: 45-65Hz

Monitoring Functions
Voltage:

Under/Over Voltage

Phase Sequence

Phase Asymmetry

Phase Loss

Current (with CTs):

Under/Over Current

Current Unbalance

Power:

Active/Reactive Power

Power Factor

Output Relays
Configuration: 2 SPDT (Form C) relays

Contact Rating:

5A @ 250V AC (resistive)

3A @ 30V DC

Mechanical Life: 10 million operations

Electrical Life: 100,000 operations @ rated load

User Interface
Display: 4-digit LED

Indicators:

6 status LEDs (power, alarms, etc.)

Controls:

4 navigation buttons

Rotary selector switch

Communication (Optional)
Protocol: Modbus RTU

Interface: RS-485 (requires add-on module)

Baud Rate: Configurable 1200-19200 bps

Environmental Specifications
Operating Temperature: -20°C to +55°C (-4°F to +131°F)

Storage Temperature: -40°C to +85°C (-40°F to +185°F)

Humidity: 5-95% RH (non-condensing)

Altitude: ≤2000m (6562ft)

Mechanical Specifications
Dimensions: 90×22.5×83mm (3.54×0.89×3.27in)

Weight: Approx. 300g (0.66lb)

Mounting: DIN rail (35mm)

Certifications & Standards
Safety: UL 508, EN 60947-5-1

EMC: EN 61000-6-2, EN 61000-6-4

RoHS: Compliant

Ordering Information
Base Unit: RM22UA33MR

Accessories:

Current Transformers (e.g., ACTI9 CTIC65)

Communication Module (e.g., RM22TL32)

Typical Applications
Motor protection systems

Generator monitoring

HVAC equipment protection

Industrial power distribution panels