Broyce Control Ltd
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Broyce Control Ltd
Pool Street, Wolverhampton
WV2 4HN, United Kingdom
Tel. + 44 (0) 1902 773746


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Earth Fault and Overcurrent Relays

** We are pleased to introduce a new range of IDMT / DT Relays **
Broyce Control Ltd

Why not give us a call on
+ 44 (0) 1902 773746

Broyce Control Ltd

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Overcurrent and Earth Fault Relays (IDMT/IDT/DT)

Broyce Control design and manufacture a range of high performance, 32-bit ARM based Inverse Definite Minimum Time (IDMT), Inverse Definite Time (IDT) and Definite Time (DT) Relays for monitoring and protecting network feeders against overcurrent and/or earth fault conditions.

Four programmable models are available and include True R.M.S. measurement techniques, 6 selectable IDMT characteristic curves, adjustable DT, pre-defined and selectable CT ratios, Low-set and High-set tripping thresholds and with information being displayed on a clear backlit Liquid Crystal Display. These products have been designed using Ecosmart technology which ensures the power consumption is kept to a minimum whilst meeting all applicable energy efficient requirements.

In addition to the above, five new models which sit beneath the fully programmable versions offer fixed tripping characteristics (IDMT, IDT or DT) along with user adjustable Low-set and High-set tripping thresholds.

For further information, scroll down this page to see all products. Click on the PDF icon to access Product data sheets.

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P9600 Series   Panel Mounting


Click to enlarge
Earth Fault and Overcurrent Relays
P9620

DIMS: (mm) H96 W96 D100*
(*behind panel)
Type No
Earth Fault and Overcurrent Relays P9620 New Product
Earth Fault and Overcurrent Relays P9625 New Product
Earth Fault and Overcurrent Relays P9630 New Product
Earth Fault and Overcurrent Relays P9640 New Product
Earth Fault and Overcurrent Relays P9650 New Product
Image P9620 P9625 P9630 P9640 P9650
Description Earth Fault Overcurrent Overcurrent Earth Fault Overcurrent
Measurement True RMS True RMS True RMS True RMS True RMS
Overcurrent Monitoring No Yes Yes No Yes
Earth Fault Monitoring Yes No No Yes No
Voltage Monitoring No No No No No
Selectable Curves No No No No No
Definitive Time Yes Yes IDT IDMT - Normal Inverse 3/10 IDMT - Normal Inverse 3/10
Low Set Tripping Yes Yes Yes Yes Yes
High Set Tripping Yes Yes Yes Yes Yes
Fully Programmable No - Potentiometer set No - Potentiometer set with 1 adjustment per phase No - Potentiometer set No - Potentiometer set No - Potentiometer set
LCD No No No No No
Selectable CT Ratio No No No No No
Output 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay
Output Rating 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1)
Supply Voltage U (50/60Hz) 115VAC or 230VAC 115VAC or 230VAC 115VAC or 230VAC 115VAC or 230VAC 115VAC or 230VAC

P9600 Series LCD   Panel Mounting


Click to enlarge
Earth Fault and Overcurrent Relays
P9680

DIMS: (mm)
H96 W96 D100*
(*behind panel)
Type No
Earth Fault and Overcurrent Relays P9660 New Product
Earth Fault and Overcurrent Relays P9670 New Product
Earth Fault and Overcurrent Relays P9680 New Product
Earth Fault and Overcurrent Relays P9690 New Product
Image P9660 P9670 P9680 P9690
Description Earth Fault Overcurrent Overcurrent and Earth Fault Overcurrent and Earth Fault with Voltage Monitoring
Measurement True RMS True RMS True RMS True RMS
Overcurrent Monitoring No Yes Yes Yes
Earth Fault Monitoring Yes No Yes Yes
Voltage Monitoring No No No Yes
Selectable Curves Normal Inverse 3/10
Normal Inverse 1.3/10
Long Time Inverse
Very Inverse
Extremely Inverse
Extremely Inverse 0.65
Normal Inverse 3/10
Normal Inverse 1.3/10
Long Time Inverse
Very Inverse
Extremely Inverse
Extremely Inverse 0.65
Normal Inverse 3/10
Normal Inverse 1.3/10
Long Time Inverse
Very Inverse
Extremely Inverse
Extremely Inverse 0.65
Normal Inverse 3/10
Normal Inverse 1.3/10
Long Time Inverse
Very Inverse
Extremely Inverse
Extremely Inverse 0.65
Definitive Time Yes Yes Yes Yes
Low Set Tripping Yes Yes Yes Yes
High Set Tripping Yes Yes Yes Yes
Fully Programmable Yes Yes Yes Yes
LCD Yes Yes Yes Yes
Selectable CT Ratio Yes Yes Yes Yes
Output 2 x SPDT Relay 2 x SPDT Relay 2 x SPDT Relay 2 x SPDT Relay
Output Rating 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1)
Supply Voltage U (50/60Hz) 1. 85-265VAC/85-370VDC
2. 18-57VAC/18-75VDC
1. 85-265VAC/85-370VDC
2. 18-57VAC/18-75VDC
1. 85-265VAC/85-370VDC
2. 18-57VAC/18-75VDC
1. 85-265VAC/85-370VDC
2. 18-57VAC/18-75VDC


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