PMI

PMI's TLAR Current Clamp

TLAR Current Clamp- Bolt

$2,335.00

Please call +1 (800)296-4120 for International Pricing

The Bolt TLAR Current Clamp is a precision current measurement accessory designed specifically for integration with Bolt monitoring systems. Built to support accurate data collection in utility and distribution environments, this clamp-style current transformer enables safe, non-intrusive current measurement while maintaining high resolution at lower current levels. Its design allows for quick deployment in the field without requiring system interruption, making it well suited for temporary studies or permanent monitoring applications.

Adapted from PMI’s established TLAR current clamp platform, this version is configured for compatibility with the Bolt system and supports a wider range of termination options to accommodate different installation requirements. The clamp design allows it to be installed directly around conductors, providing a practical solution for capturing current data in real-world conditions.

When used with Bolt monitoring devices, the Bolt TLAR Current Clamp enhances visibility into system performance by enabling accurate current measurement alongside voltage data. This combination supports improved analysis of load behavior, system conditions, and overall distribution performance.


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Features & Benefits

The Bolt TLAR Current Clamp is designed to deliver accurate and reliable current measurement in utility field applications where precision and ease of installation are critical. As a clamp-style current transformer, it allows for safe measurement without direct electrical contact, reducing installation complexity while maintaining measurement integrity. This approach supports both temporary monitoring and long-term deployment without requiring system shutdowns.

Derived from PMI’s TLAR clamp technology, the device is optimized for high data resolution at lower current ranges, making it particularly effective for capturing detailed load characteristics that may be missed by higher-range sensors. This capability is important in applications where subtle variations in current can provide insight into system behavior or emerging issues.

The Bolt-specific configuration introduces additional flexibility through expanded termination options, enabling compatibility across a variety of installation scenarios. This allows utilities to deploy the clamp in different environments while maintaining consistent performance.

When paired with the Bolt monitoring platform, the TLAR Current Clamp enables combined voltage and current analysis, supporting a more complete understanding of system conditions. This integrated visibility helps utilities improve diagnostics, validate system performance, and make more informed operational decisions based on accurate field data.

Specs

Electrical Specifications
Current Ranges 20A, 200A AC
Operating Limit 200A Continuous
Frequency Range 40 to 10kHz
Working Voltage 600 VAC max
Influence of conductor position in jaw 0.5% of reading at 50/60Hz
Influence of adjacent conductor 1.50%
Influence of frequency 40Hz to 1kHz: 3% of reading, 1kHz to 10kHz: 12% of reading
Phase Shift
1-20A ≤3 degrees
20-80A ≤2 degrees
80-200A ≤2.5 degrees
Accuracy
20A scale 1 to 20 A: 1.5% of reading ±0.1A
200A scale 1.5% of reading ±0.5A
Safety
Rating UL 61010B-1, IEC 61010-1, 600V CAT III
PMI Recorder Capability
Compatibility 10A range only with iVS-3/600E and ViPs with SNs lower than 61000, otherwise adjustable 20A/200A range
Environmental
Operating Temp 14°F to 131°F, -10°C to 55°C
Case Protection Probes – IP40, Enclosure – IP65
Physical Dimensions
Maximum Conductor Size 0.78 in (20 mm), bus bar 20 x 5 mm
Probes 5.47 x 2.00 x 1.18 in (139 x 51 x 30 mm)
Enclosure 2.36 x 1.38 x 0.67 in
Weight TLAR+200/3 – 0.75 lb, TLAR+200/4 – 1.00 lb
Probe Leads 4 ft, 600V rating
# of Elements 3
Output Cable 9 in, 600V rating

White Papers

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FAQ

What current ranges does the Bolt TLAR Current Clamp support?

The clamp offers adjustable 20A and 200A ranges. A 10A range is also available, but only with iVS-3/600E units and Bolt units with serial numbers lower than 61000.

Can I use the Bolt TLAR Current Clamp with other PMI recorders?

This version is configured specifically for compatibility with the Bolt system. For use with other PMI recorders, see the standard TLAR Current Clamp.

What voltage rating is the Bolt TLAR Current Clamp safe for?

The clamp is rated for 600 VAC, CAT III environments, allowing safe use in industrial and utility settings.

What’s the maximum conductor size the clamp can accommodate?

The clamp accommodates conductors up to 0.78 in (20 mm) in diameter, or bus bars up to 20 x 5 mm.

How do I ask a power quality question about my data?

Email Merlin™ at askmerlin@powermonitors.com or text (540) 383-3144. Merlin™ is PMI’s AI assistant, trained on 425+ technical white papers.

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