The ASHT Series solid core current transformers are designed for precise current measurement in industrial control, and load monitoring applications. These transformers are CSA approved and rated for ANSI METERING CLASS up to 0.3, making them a dependable choice for panel builders, contractors, and system integrators.
The ANSI Metering Class transformers are intended for power monitoring applications where high accuracy and minimal phase angle error are required. They are specially designed to be compliant with relevant ANSI standards and perform reliably under typical utility and commercial conditions.
🔧 Key Features
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✅ CSA Approved – Compliant with Canadian safety regulations
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✅ ANSI METERING CLASS up to 0.5
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✅ Current Ratios – Available from 50:5 A to 1200:5 A
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✅ Insulation Rating – 600V, 10 kV BIL (full wave)
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✅ Compact Solid Core Design – 1.13" (28.7 mm) window diameter
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✅ Brass Stud Terminals – No. 8-32 screws on foot-mount base
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✅ 50–400 Hz frequency range
📐 Specifications
| Parameter |
Value |
| Accuracy Class |
Class 1 (±1%) |
| Frequency Range |
50–400 Hz |
| Window Diameter |
1.13 in. (28.7 mm) |
| Insulation Level |
600V, 10 kV BIL |
| Mounting |
Foot mount with brass studs |
| Certifications |
CSA Approved |
📄 Datasheet available upon request
🧰 Typical Applications
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Industrial automation
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Power monitoring and load profiling
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Building automation systems
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Switchgear and MCC panels
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Utility sub-metering
🔷 ASHT Series (Solid Core, Metering Accuracy)
Available in 6 window sizes (2ASHT, 5ASHT, 6ASHT, 7ASHT, 15ASHT, and 56ASHT) and 14 current ratios (from 50:5 to 800:5), the ASHT Series current transformers are CSA certified and Class 1 accurate. Designed for energy management systems and submetering applications where high measurement precision and large conductor clearance are essential.
📦 Stock & Delivery
Many models are in stock and ship next business day from our Canadian warehouse.
📬 Need OEM quantity pricing or scheduled deliveries? Contact us — we’ll be happy to help.
Explore more options:
See all Current Transformers available from Duncan Instruments—various ratios, split-core and solid-core, in stock and ready to ship.
