30A split-core current transformer
€239.20
30A AC Current probe 1W-UNI 2: Precise Current Monitoring for Industrial Applications
The HW group 30A AC Current probe 1W-UNI 2 is an advanced sensor for indirect, single-phase measurement of alternating current up to 30A, without the need to cut the power cable.
The split-core current transformer can be opened to insert a conductor, enabling easy installation. This sensor is ideal for current monitoring in server rooms, data centers, BTS stations, and rack cabinets. Via the 1-Wire UNI bus (RJ11), the sensor can be connected to devices such as Poseidon2 or Ares, making the data accessible via LAN or GSM.
Together with a Poseidon unit, it serves as an early warning system against power supply overloads or individual line overloads.
Main Features of the 30A AC Current probe 1W-UNI 2
The 30A AC Current probe 1W-UNI 2 consists of a clamp current transformer ("CLAMP METER") and a 1-Wire UNI converter unit, enabling precise current consumption measurement. The galvanic isolation ensures maximum safety. Here is an overview of the key features:
- Indirect Measurement: The 30A AC sensor measures alternating current from 0 to 30A with an accuracy of 2% and a resolution of 0.1A, without cutting the cable, thanks to the split-core current transformer.
- Galvanic Isolation: The 1-Wire UNI bus is electrically isolated from the measuring circuit, preventing interference and increasing safety.
- Compatibility: Compatible with HW group devices such as Poseidon2, Ares, STE2, and SiteMon, for seamless Poseidon2 integration via LAN or GSM. Max. 2 sensors per RJ11 port, up to 8 sensors with Poseidon 4002.
- Easy Installation: The clamp current transformer can be placed around the phase (L) or neutral (N) conductor (insulated wire required). Connection between clamp and converter via a double-insulated cable.
- Power Supply: Bus-powered via the 1-Wire UNI bus, so no external power supply is required.
- Compact Design: With two RJ11 connectors for daisy-chaining, the sensor is space-saving and flexible in use.
Application Areas of the 30A AC Current probe 1W-UNI 2
The 30A AC Current probe 1W-UNI 2 is versatile and suitable for scenarios where precise energy monitoring is required. Typical application areas include:
- Server Rooms and Data Centers: Monitoring the power consumption of racks and devices to avoid overloads.
- BTS Stations: Measuring power consumption in telecommunication facilities.
- Industrial Applications: Monitoring power consumption in production facilities or machines.
- Remote Monitoring: Email or SMS notifications when values are outside the "SafeRange" to protect critical systems.
- Rack Monitoring: Precise recording of the power consumption of individual racks for optimized energy management.
Why the 30A AC Current probe 1W-UNI 2 is the Right Choice
The 30A AC Current probe 1W-UNI 2 stands out for its easy installation and high precision. Compared to other signal converters, it offers galvanic isolation and compatibility with a wide range of HW group devices.
The indirect measurement without cable cutting and the daisy-chaining capability make it ideal for industrial environments. The 1-Wire UNI interface allows easy integration with monitoring systems such as Poseidon2 or Ares, while the robust construction ensures reliable current monitoring.
Technical Details
- Measuring Range: 0-30A AC
- Measurement Accuracy: 2% of the full range
- Resolution: 0.1A
- Measured Voltage: Max. 400V AC (110V/60Hz, 230V/50Hz)
- Interface: 1-Wire UNI (2x RJ11 for daisy-chaining)
- Power Supply: Bus-powered via 1-Wire UNI
- Connection: Split-core clamp current transformer for phase or neutral conductor (insulated wire required)
- Operating Environment: -30°C to +85°C, 0% to 100% relative humidity
- Protection Class: IP20
- Weight: Approx. 180 g
Integration with HW group Products
The 30A AC Current probe 1W-UNI 2 is optimally matched to HW group devices such as Poseidon2, Ares, or STE2. In combination with these devices, you can build a comprehensive energy monitoring system that provides measurement data in real time via LAN, GSM, SNMP, or Modbus/TCP. The free HWg-PDMS software enables analysis and export of data to Excel for detailed reports. Connection to the SensDesk portal offers additional visualization options via Android or iOS apps.
Installation and Setup
Installation of the sensor is simple. Open the split-core current transformer, place it around the phase (L) or neutral (N) conductor (insulated wire required), and connect the RJ11 output to the monitoring system. The sensor is powered via the 1-Wire UNI bus. Thanks to its compact design and daisy-chaining capability, the sensor can also be used in confined spaces.
The HW group 30A AC Current probe 1W-UNI 2 is the ideal solution for precise current monitoring and remote monitoring in industrial applications. With its galvanic isolation, easy installation, and flexible interfaces, it is perfect for server room monitoring, BTS stations, and rack monitoring. Optimize your monitoring systems with the 30A AC Current probe 1W-UNI 2.
Current Range:
- Measuring Range: 0–30A AC
- Measurement Accuracy: 2%
- Display Resolution: 0.1A
- A/D Converter Resolution: 16 Bit
Electrical Specifications:
- Maximum Measuring Voltage: 400V
- Electrical Isolation: 1-Wire UNI bus is electrically isolated from the measuring circuit
- Measuring Method: Indirect AC current measurement (without wire interruption)
- Application: Single-phase measurement
Mechanical Properties:
- Construction: Split-core current transformer
- Cable Connection: Double-insulated cable between transformer and converter
- Cable Length: 1m (not extendable)
- Mounting: Hinged clamp core around the conductor to be measured
Environmental Conditions:
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Operating Humidity: RH < 80%
- Storage Temperature: -10°C to +50°C (14°F to 122°F)
- Storage Humidity: RH < 70%
Connection and Communication:
- Interface: 1-Wire UNI (RJ11)
- Components: Clamp current transformer (CLAMP METER) and 1-Wire converter unit
- Calibration: Current transformer and converter are matched and not interchangeable
Applications:
- Monitoring power consumption of racks, BTS, or server rooms
- Early warning system against power supply overload
- Monitoring individual power lines
- Use with Poseidon units
Installation:
- Measurement without wire interruption
- Place clamp core around phase (L) or neutral (N) conductor
- Only one conductor should pass through the core (not multiple)
- Wire must be insulated
- Wire must pass freely through the core (do not wrap around)
Safety Instructions:
- The wire to be measured must be insulated
- Power cable of the measured device must be double-insulated
- The electrical installation must include a main switch or circuit breaker and overcurrent protection
- Complies with EU regulations and industry standards
Related Products:
- Sensor 4-20mA 1W-UNI: 0–20mA DC sensor
- Sensor 0-20mA 1W-UNI: 4–20mA DC sensor (with sensor power supply)
- Sensor 60V 1W-UNI v2: 0–60V DC sensor
- 100A DC Current probe 1W-UNI: 0–60V DC sensor
Scope of Delivery:
- Split-core clamp current transformer
- 1-Wire UNI converter
- Printed user manual
Monitoring devices
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Extension units
Accessories
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DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
