# TRANSFORMER, 1:500, 30A, 21OHM
**URL**: https://novapart.co/products/CSE187L/transformer-1500-30a-21ohm
**SKU**: CSE187L
**Manufacturer**: TRIAD MAGNETICS
**Category**: Transformers || Current Sensing Transformers
**Price**: €2.3100
**Stock**: 200+
**Lead Time**: 172 days (indicative)
## Description
Turns Ratio:1:500; Inductance:-; Primary Current:30A; ET Constant:30000Vµs; Frequency Range:50Hz to 400Hz; DC Resistance Secondary:0.021ohm; DC Resistance Primary:270µo 76K3910
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Et Constant | 30000Vµs |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1164416/)
## **Current Sense / Low Frequency Transformers**
## **C S E 1 8 7 L**
## **Description:**
Triad’s low frequency current sense transformers are designed to monitor current from 0.1 to 30 amperes at frequencies from 50 Hz to 400 Hz. This product is also available in potted coil construction as CSE187L-P.
## **Electrical Specifications at 25º C:**
**Turns ratio:** Primary to sense 1: 500 **Suggested burden resistor:** 60Ω **Typical output:** 110mV/Amp
**Primary DCR:** 250 micro ohms maximum **Sense DCR:** 21 ohms maximum
**Operating Temperature:** -30°C to 95°C **Storage Temperature:** -50°C to 125°C
**Maximum input: Maximum output voltage:** 30Arms, 0-240VAC circuit 4.0Vrms. Burden resistor value must be selected
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Maximum input: Maximum output voltage: 30Arms, 0-240VAC circuit 4.0Vrms. Burden resistor value must be selected .710MAX
to not exceed this voltage.
Response Curve: J (.125 - .200) .080 DIA+/-.003
.025 SQ .40 2 PLCS
±0.015
4 PLCS
100% a a ee
re | 0.85 MAX
8 1A
1
90%1
0.600 0.37
±0.005 ±0.015 [0.86 MAX]
80%Aaa— \ . Als.
4
Ok 7 )
60% 5 0.11 BOTTOM
0.1 0.5 1 2 5 7 10 15 20 30 .72 2A VIEW
Primary Current - AC Amps ±0.015
Construction:
These transformers are provided with Recognized Component electrical 1A 8
insulation system (OBJY2), Class 130 (B), designated “B3”. Products are designed, built and 100% tested for a hi-pot of 2500V, winding to winding and 1250V, winding to core. .100 DIA. : .37 .600 PCLAYOUTBOARD
Agency Files:
UL file E50476 – Electrical Insulation Systems, Class “B3”, 130C 2A .125
UL file E205349 – Component, Instrument Transformer (XODW2)
2A 8
RoHS Compliance: As of manufacturing date February 2005, all standard products
meet the requirements of 2011/65/EU, known as the RoHS initiative.
1A 5
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* Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics’ website for the most current version.
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SCHEMATIC
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web:www.TriadMagnetics.com 460 Harley Knox Blvd. Phone 951-277-0757 Perris, California 92571 Fax 951-277-2757
Publish Date: December 4, 2013
## Links
- [View this product on Novapart](https://novapart.co/products/CSE187L/transformer-1500-30a-21ohm)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/triad-magnetics/cse187l/transformer-1-500-30a-21ohm/dp/1164416)
---
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