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Clamp-on AC Current Transducer - 500 Amps 50/60Hz - (CT-353)
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Clamp-on AC Current Transducer - 500 Amps 50/60Hz - (CT-353)

The CT-353 is a rugged, self-powered 500A clamp-on AC current probe designed specifically for use with the ACR SRX3 Current Logger. Built for fast, non-intrusive installation in electrical panels, switchgear, and equipment disconnects, it enables safe current measurement without disconnecting conductors. Its hook-style jaw design allows technicians to easily clamp onto insulated conductors or suitably sized bus bars, making load studies and current profiling straightforward and efficient.

Key Features

  • 2-500 Amp measurement range
  • Self-powered from the measured conductor — no batteries, no external power
  • 33 mm (1.3") jaw opening
  • Accepts conductors up to 30 mm (1.18") diameter
  • Compatible with bus bars up to 63 × 5 mm (2.48 × 0.20 in)
  • Frequency range: 48–1000 Hz
  • CAT III 600V safety rating

Designed for use with the ACR SRX3 AC Current Logger.

$339.00 USD

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Description Specifications Software Documentation Q&A

The AC Current Transducer CT-353 is the standard 500A clamp-on current probe designed specifically for use with the ACR SRX3 AC Current Data Logger.

This split-core probe enables safe, non-intrusive measurement of AC current without disconnecting conductors. Completely self-powered from the magnetic field of the conductor it measures, the CT-353 requires no batteries or external supply—simplifying installation and increasing reliability in load study applications. Its hook-style jaw design allows technicians to clamp easily onto insulated conductors or suitably sized bus bars inside electrical panels, equipment disconnects, and distribution systems, even in confined spaces.

With a 1 mV DC per amp AC output (0.5 VDC at 500A), the CT-353 is matched to the SRX3’s 0–5 V input, providing accurate and stable current logging for load studies, energy analysis, and troubleshooting applications.

The probe accommodates insulated conductors up to 30 mm (1.18") in diameter and bus bars up to 63 × 5 mm (2.48 × 0.20 in), making it suitable for a wide range of commercial and industrial installations.

Rated 600V CAT III and built with rugged polycarbonate housing, the CT-353 is designed for reliable field use alongside the SRX3 in demanding environments.

Note:

  • A $40 USD shipping fee will be applied to this product.

Specifications

Range 2A to 500A
Size 1.5m (5ft) Cable Length, 3.0×6.0cm (1.18×2.48in) Clamp Inside Diameter

Software

ACR software tools are intuitive and flexible, allowing you to easily configure ACR data loggers to collect the data you need. Once downloaded, your data is displayed in presentation-quality graphs and can be converted into popular formats for use with spreadsheet programs, document editors, and other third-party applications.

Documentation

For a product sheet, please click below for a pdf version.

Product Sheet

Q&A

What applications is this probe typically used for?

When paired with the SRX3, it is commonly used for:

  • Long-term electrical load studies
  • Panel capacity analysis
  • Equipment current monitoring
  • Energy troubleshooting
  • Preventative maintenance logging

Does this require external power?

No. The probe is powered by the magnetic field of the conductor it is measuring. It does not require batteries or external supply.



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Its hook-style jaw design allows technicians to clamp easily onto insulated conductors or suitably sized bus bars inside electrical panels, equipment disconnects, and distribution systems, even in confined spaces.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"832\"\u003eWith a 1 mV DC per amp AC output (0.5 VDC at 500A), the CT-353 is matched to the SRX3’s 0–5 V input, providing accurate and stable current logging for load studies, energy analysis, and troubleshooting applications.\u003c\/p\u003e\n\u003cp data-start=\"834\" data-end=\"1036\"\u003eThe probe accommodates insulated conductors up to 30 mm (1.18\") in diameter and bus bars up to 63 × 5 mm (2.48 × 0.20 in), making it suitable for a wide range of commercial and industrial installations.\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eRated 600V CAT III and built with rugged polycarbonate housing, the CT-353 is designed for reliable field use alongside the SRX3 in demanding environments.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eNote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA $40 USD shipping fee will be applied to this product.\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2020-12-18T20:41:35-08:00","created_at":"2020-12-18T20:41:35-08:00","vendor":"ACR Systems","type":"","tags":["AC Current \u0026 Voltage"],"price":33900,"price_min":33900,"price_max":33900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":37804119457963,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"35-0049","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Clamp-on AC Current Transducer - 500 Amps 50\/60Hz - (CT-353)","public_title":null,"options":["Default Title"],"price":33900,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991"],"featured_image":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991","options":["Title"],"media":[{"alt":null,"id":15547490861227,"position":1,"preview_image":{"aspect_ratio":1.11,"height":300,"width":333,"src":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991"},"aspect_ratio":1.11,"height":300,"media_type":"image","src":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991","width":333}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-start=\"214\" data-end=\"354\"\u003eThe AC Current Transducer CT-353 is the standard 500A clamp-on current probe designed specifically for use with the \u003ca href=\"https:\/\/www.acrdatasolutions.com\/products\/srx3-three-phase-ac-current-logger\"\u003eACR SRX3 AC Current Data Logger\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp data-start=\"420\" data-end=\"739\"\u003eThis split-core probe enables safe, non-intrusive measurement of AC current without disconnecting conductors. Completely self-powered from the magnetic field of the conductor it measures, the CT-353 requires no batteries or external supply—simplifying installation and increasing reliability in load study applications. Its hook-style jaw design allows technicians to clamp easily onto insulated conductors or suitably sized bus bars inside electrical panels, equipment disconnects, and distribution systems, even in confined spaces.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"832\"\u003eWith a 1 mV DC per amp AC output (0.5 VDC at 500A), the CT-353 is matched to the SRX3’s 0–5 V input, providing accurate and stable current logging for load studies, energy analysis, and troubleshooting applications.\u003c\/p\u003e\n\u003cp data-start=\"834\" data-end=\"1036\"\u003eThe probe accommodates insulated conductors up to 30 mm (1.18\") in diameter and bus bars up to 63 × 5 mm (2.48 × 0.20 in), making it suitable for a wide range of commercial and industrial installations.\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eRated 600V CAT III and built with rugged polycarbonate housing, the CT-353 is designed for reliable field use alongside the SRX3 in demanding environments.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eNote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA $40 USD shipping fee will be applied to this product.\u003c\/li\u003e\n\u003c\/ul\u003e"}
Translation missing: en.general.search.loading
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Its hook-style jaw design allows technicians to clamp easily onto insulated conductors or suitably sized bus bars inside electrical panels, equipment disconnects, and distribution systems, even in confined spaces.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"832\"\u003eWith a 1 mV DC per amp AC output (0.5 VDC at 500A), the CT-353 is matched to the SRX3’s 0–5 V input, providing accurate and stable current logging for load studies, energy analysis, and troubleshooting applications.\u003c\/p\u003e\n\u003cp data-start=\"834\" data-end=\"1036\"\u003eThe probe accommodates insulated conductors up to 30 mm (1.18\") in diameter and bus bars up to 63 × 5 mm (2.48 × 0.20 in), making it suitable for a wide range of commercial and industrial installations.\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eRated 600V CAT III and built with rugged polycarbonate housing, the CT-353 is designed for reliable field use alongside the SRX3 in demanding environments.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eNote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA $40 USD shipping fee will be applied to this product.\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2020-12-18T20:41:35-08:00","created_at":"2020-12-18T20:41:35-08:00","vendor":"ACR Systems","type":"","tags":["AC Current \u0026 Voltage"],"price":33900,"price_min":33900,"price_max":33900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":37804119457963,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"35-0049","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Clamp-on AC Current Transducer - 500 Amps 50\/60Hz - (CT-353)","public_title":null,"options":["Default Title"],"price":33900,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991"],"featured_image":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991","options":["Title"],"media":[{"alt":null,"id":15547490861227,"position":1,"preview_image":{"aspect_ratio":1.11,"height":300,"width":333,"src":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991"},"aspect_ratio":1.11,"height":300,"media_type":"image","src":"\/\/www.acrdatasolutions.com\/cdn\/shop\/products\/3609_400_300.jpg?v=1610163991","width":333}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-start=\"214\" data-end=\"354\"\u003eThe AC Current Transducer CT-353 is the standard 500A clamp-on current probe designed specifically for use with the \u003ca href=\"https:\/\/www.acrdatasolutions.com\/products\/srx3-three-phase-ac-current-logger\"\u003eACR SRX3 AC Current Data Logger\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp data-start=\"420\" data-end=\"739\"\u003eThis split-core probe enables safe, non-intrusive measurement of AC current without disconnecting conductors. Completely self-powered from the magnetic field of the conductor it measures, the CT-353 requires no batteries or external supply—simplifying installation and increasing reliability in load study applications. Its hook-style jaw design allows technicians to clamp easily onto insulated conductors or suitably sized bus bars inside electrical panels, equipment disconnects, and distribution systems, even in confined spaces.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"832\"\u003eWith a 1 mV DC per amp AC output (0.5 VDC at 500A), the CT-353 is matched to the SRX3’s 0–5 V input, providing accurate and stable current logging for load studies, energy analysis, and troubleshooting applications.\u003c\/p\u003e\n\u003cp data-start=\"834\" data-end=\"1036\"\u003eThe probe accommodates insulated conductors up to 30 mm (1.18\") in diameter and bus bars up to 63 × 5 mm (2.48 × 0.20 in), making it suitable for a wide range of commercial and industrial installations.\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eRated 600V CAT III and built with rugged polycarbonate housing, the CT-353 is designed for reliable field use alongside the SRX3 in demanding environments.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1193\"\u003eNote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA $40 USD shipping fee will be applied to this product.\u003c\/li\u003e\n\u003c\/ul\u003e"}