💬 Need Technical Support?
This is a precision instrument. If you’re unsure which model fits your application or need purchasing
documentation, just ask — we’re happy to help.
🛠️ We Service What We Sell
Duncan Instruments calibrates and supports the ASFT series Current Transformers (CT) right here in Canada.
Whether you need annual certification, repairs, or help interpreting your test results — our expert
technicians are ready to help.
Why Buy from Duncan Instruments?
✅ Authorized Canadian distributor
📞 Expert advice from experienced engineers
⚙️ In-house calibration & service
🚚 Fast Canadian shipping
📈 Pricing monitored daily to stay competitive
ASFT series Current Transformers (CT)
Regular price$ 105.00 CAD$ 34.95 CADSale
CSA Approved • Enhanced Accuracy for Revenue-Grade Metering
The ASFT 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
✅ CSA Approved – Compliant with Canadian safety regulations
✅ ANSI METERING CLASS up to 0.3
✅ Current Ratios – Available from 50:5 A to 1200:5 A
✅ Brass Stud Terminals – No. 8-32 screws on foot-mount base
✅ 50–400 Hz frequency range
📐 Specifications
Parameter
Value
Accuracy Class
Class 0.5 (±0.5%)
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
Industrial automation
Power monitoring and load profiling
Building automation systems
Switchgear and MCC panels
Utility sub-metering
🔷 ASFT Series (Solid Core, Metering Accuracy)
Available in 6 window sizes (2ASFT, 5ASFT, 6ASFT, 7ASFT, 15ASFT, and 56ASFT) and 14 current ratios (from 50:5 to 1000:5), the ASFT Series solid-core current transformers are CSA certified and Class 1 accurate. Designed for submetering, energy audits, and revenue-grade industrial monitoring where enhanced measurement precision is required.
📦 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.
