Hoyt Electrical Instrument Works, Inc. Datasheets for Instrument Transformers

nstrument transformers are used to step-down current or voltage to measurable values. They provide standardized, useable levels of current or voltage in a variety of power monitoring and measurement applications.
Instrument Transformers: Learn more

Product Name Notes
Current ranges vary from 50 amps - 400 amps Features:1.56" Mounting Type: Foot mounted Series: 5 RoHS Compliant: NA
Current Ratio 500:5 to 6000:5. Standard 5-amp secondary. Others available. Terminals are brass No. 10-32 UNC. All models are fully encapsulated for indoor/outdoor applications, additional ratios available with a removable...
Current Ratio: 50:5 - 400:5 A Current Rating:100A Features: 1.05" Mounting Type:Donut Series:2 RoHS Compliant
Features: 2.5" Mounting Type:Foot mounted Series:7 RoHS Compliant: NA. Current ratio 100:5 to 1600:5
Fully Encapsulated for indoor and outdoor applications with Ammeters, Wattmeters and Relays. A Standard 5-amp secondary with others available. Used as input for power and current meters Input: 0-50 to...
Fully Encaspulated Split Core Transformer, Window Diameter 1.0", 2.550" x 2.950". Approximate Weight 0.5LBS. Models: 1025 RW, SB SH, similar to ITI models 2RL, 2SFT and 2SHT. Current Ratio 50:5...
Split core transformer with a standard 5-amp secondary. Others available. Terminals are brass No. 10-32 UNC. All models are fully encapsulated for indoor/outdoor applications, additional ratios available with a removable...
Terminals are brass No. 10-32, it is desirable to use a 0.5 amp fuse in the secondary to protect the transformer, All ratios are designed for 60Hz operation, Approximate weight...
Terminals are brass No. 10-32, it is desirable to use a 1.5 amp fuse in the secondary to protect the transformer, Model PT150-3.17 is desined specifically for 50 Hz operation...
Terminals are brass No. 10-32, it is desirable to use a 1.50 amp fuse in the secondary to protect the transformer, Model 3PTN150-3.17 is desined specifically for 50 Hz operation...
The Model WP200 is a low ratio, wound primary, current transformer suitable for primary currents 1 to 50 amperes. Standard 5-amp secondary, others available. Terminals are No. 10-32 UNC, additional...
The model WP5 is a low ratio, wound primary, current transformer suitable for primary currents 1 to 50 amperes and 5 amp secondary. Terminals are No. 10-32 UNC, additional ratios...
Thermal Rating: 75VA@ 30oC ambient 50VA@ 55oC ambient Other voltages and ratios available. Contact factory for information. Durable and Cost-Effective Phenolic Housing, UL rated 94--VD Model 2660 Accuracy ± 0.6%...
Conforms to UL 1244, ANSI C57.13 and applicable IEC standards. Frequency 50 - 400 HZ. Insulation Class 0.6 KV BIL 10 KV Leads are 16 AWG UL 1015 PVC, 105C...