Siemens Residual-current transformer, 80mm opening, 30mA, 40A

Product Overview

Residual current transformer designed for comprehensive residual current monitoring in machines and electrical systems. This SIRIUS 3UL23 series transformer features an 80mm bushing opening and monitors residual currents from 30 mA to 40 A. The device is engineered for integration with SIRIUS monitoring relays and SIMOCODE motor management systems, providing reliable detection of fault currents to protect equipment and personnel from electrical hazards.

Key Features

• Residual current transformer for fault current detection and monitoring
• 80mm bushing opening accommodates various cable configurations
• Wide residual current monitoring range: 30 mA to 40 A
• Type A transformer suitable for pure AC or AC with pulsating DC fault current components
• Compatible with SIRIUS 3UG4625 and 3UG4825 monitoring relays
• Integration capability with SIMOCODE 3UF motor management devices
• Robust construction for industrial environments
• Toroidal ring design for accurate current measurement
• Compliant with DIN VDE 0100-530/IEC TR 60755 standards

Technical Specifications

• Article Number: 3UL2304-1A
• Product Series: SIRIUS 3UL23 residual current transformers
• Bushing Opening: 80 mm
• Residual Current Range: 30 mA...40 A
• Transformer Type: Type A (per DIN VDE 0100-530/IEC TR 60755)
• Current Measurement: Toroidal ring current transformer design
• Primary Input: 40A Input
• Transformation Ratio: 40:1
• Output: 225 A Output capability
• Net Weight: 0.343 kg
• EAN: 4011209897526
• Country of Origin: Spain

Applications & Use Cases

• Residual current monitoring in industrial machinery and equipment
• Fault current detection in motor control systems
• Ground fault monitoring for personnel and equipment protection
• Integration with motor management systems for comprehensive monitoring
• Electrical safety monitoring in manufacturing and process industries
• Protection of sensitive electronic equipment from fault currents
• Compliance with electrical safety regulations and standards
• Preventive maintenance through continuous fault current monitoring

System Integration & Compatibility

• SIRIUS Monitoring Relays: Compatible with 3UG4625 and 3UG4825 residual current monitoring relays
• SIMOCODE Integration: Works with SIMOCODE 3UF motor management and control devices
• IO-Link Capability: Supports IO-Link communication through compatible monitoring relays
• Setting Range: Enables monitoring from 0.03 to 40 A when used with compatible relays
• Warning and Trip Functions: Supports separate warning threshold and switch-off value settings
• Digital Monitoring: Enables digital monitoring relay integration for precise fault detection

Installation & Mounting

• Toroidal ring design allows easy installation around existing conductors
• 80mm bushing opening accommodates various cable sizes and configurations
• Compatible with DIN rail mounting when used with appropriate accessories
• Suitable for retrofit applications in existing electrical installations
• Compact design optimizes space utilization in control cabinets
• Robust construction ensures reliable operation in industrial environments

Protection & Safety Features

• Fault Current Detection: Monitors for dangerous residual currents that could indicate insulation failures
• Personnel Protection: Helps prevent electrical shock hazards through early fault detection
• Equipment Protection: Detects ground faults that could damage electrical equipment
• Type A Compliance: Suitable for pure AC residual currents and AC with pulsating DC components
• Wide Monitoring Range: 30 mA to 40 A covers various protection requirements
• Industrial Grade: Designed for continuous operation in demanding industrial environments

Monitoring Capabilities

• Residual Current Detection: Accurate measurement of fault currents from 30 mA to 40 A
• Ground Fault Monitoring: Detects current leakage to ground indicating insulation problems
• Continuous Monitoring: Real-time assessment of electrical system integrity
• Early Warning: Enables proactive maintenance through fault current trend monitoring
• System Diagnostics: Provides data for electrical system health assessment
• Compliance Monitoring: Helps maintain electrical safety standard compliance

Technical Performance

• High Accuracy: Precise measurement across the entire 30 mA to 40 A range
• Fast Response: Immediate detection of fault current conditions
• Stable Operation: Consistent performance across varying environmental conditions
• Long Service Life: Robust construction ensures reliable long-term operation
• Low Maintenance: Toroidal design requires minimal maintenance once installed
• Temperature Stability: Reliable operation across industrial temperature ranges

Compliance & Environmental Information

• RoHS Compliance: Since 27.06.2011
• WEEE Take-Back Obligation: Yes
• Standards Compliance: DIN VDE 0100-530/IEC TR 60755 Type A transformer
• REACH Article 33: Contains Lead in concentrations higher than 0.1% weight by weight. These substances do not pose risk when used as intended.

Classification Data

• eClass 14: 27-21-09-02
• eClass 12: 27-21-09-02
• ETIM 9: EC002048
• UNSPSC 15: 39-12-10-32

Download existing graphical data for this product:

• Product Datasheet
• 3UL23 Residual Current Transformers Product Family
• SIRIUS 3UG4625 Monitoring Relay Documentation
• Delivery Release - 3UG4625/3UG4825 and 3UL23
• Residual Current Monitoring Relays