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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Broyce Control Ltd 50 Years Old
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Earth Leakage Relays

BZCTR Rectangular Toroids now added.....
Broyce Control Ltd

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Earth Leakage Relays

Broyce Control design and manufacture a range of Earth Leakage Relays, for use on single and three phase systems. Available with adjustable sensitivity or fixed sensitivity, for din rail or panel mounting. Broyce Control also offers a version of Earth Leakage Relay with integral toroid. They monitor Earth Leakage current and operate an integral relay at a preset level. Can be used on Earth Leakage alarm or for Earth Leakage protection. Earth Leakage relays are used in conjunction with a core balance current transformer (CT) which are available in different sizes (ZCT/ Toroids). Earth Leakage Relays are a valuable way to protect personnel and equipment in our ever growing litigious society.

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ELRM44 Series   DIN Rail Mtg


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Earth Leakage Relays
ELRM44V-30

DIMS: (mm) H.85 W.44 D63.5


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Earth Leakage Relays
ELRM44F

DIMS: (mm) H.85 W.44 D63.5
Type No
Earth Leakage Relays ELRM44V-30
Earth Leakage Relays ELRM44V-10 New Product
Earth Leakage Relays ELRM44V-3 New Product
Earth Leakage Relays ELRM44F-0030
Earth Leakage Relays ELRM44F-0300
Earth Leakage Relays ELRM44F-0100
Description Earth Leakage Relay Earth Leakage Relay Earth Leakage Relay Earth Leakage Relay Earth Leakage Relay Earth Leakage Relay
Function Variable - Type A (True RMS) Variable - Type A (True RMS) Variable - Type A (True RMS) Fixed - Type A (True R.M.S.) Fixed - Type A (True R.M.S.) Fixed - Type A (True R.M.S.)
Supply voltage Un 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz 12 - 125V DC, 24, 115/230V, 400VAC 50/60Hz
Sensitivity IDn 30, 100, 300, 500mA, 1, 3, 5, 10, 20, 30A (selectable) 30, 100, 300, 500, 750mA, 1, 3, 5, 7.5, 10A 30, 50, 100, 200, 300, 500, 750mA, 1, 2, 3A 30mA 300mA 100mA
Range 0 - 30A 0 - 10A 0 - 3A - - -
Time delay inst., 0.06, 0.15, 0.25, 0.5, 0.8, 1, 2.5, 5, 10sec. (selectable) inst., 0.06, 0.15, 0.25, 0.5, 0.8, 1, 2.5, 5, 10sec. (selectable) inst., 0.06, 0.15, 0.25, 0.5, 0.8, 1, 2.5, 5, 10sec. (selectable) inst. (<25mS when fault current @ 5 x IDn) inst. (<25mS when fault current @ 5 x IDn) inst. (<25mS when fault current @ 5 x IDn)
LED indication Power On indication (Green) Power On indication (Green) Power On indication (Green) Power On indication (Green) Power On indication (Green) Power On indication (Green)
  Tripped indication (Red) - LED flashes during toroid open circuit Tripped indication (Red) - LED flashes during toroid open circuit Tripped indication (Red) - LED flashes during toroid open circuit Tripped indication (Red) - LED flashes during toroid open circuit Tripped indication (Red) - LED flashes during toroid open circuit Tripped indication (Red) - LED flashes during toroid open circuit
  LED Bargraph showing leakage current (25, 50 and 75% of IDn) LED Bargraph showing leakage current (25, 50 and 75% of IDn) LED Bargraph showing leakage current (25, 50 and 75% of IDn) - - -
Test/Reset facility Local and Remote Local and Remote Local and Remote Local and Remote Local and Remote Local and Remote
Output 1 x SPDT (S.O.)/ 1 x SPNO (P.S.O.) 1 x SPDT (S.O.)/ 1 x SPNO (P.S.O.) 1 x SPDT (S.O.)/ 1 x SPNO (P.S.O.) 1 x SPDT (S.O.) 1 x SPDT (S.O.) 1 x SPDT (S.O.)
Output rating 8A @ 250VAC (AC1) - S.O. 6A @ 250V AC (AC1) - P.S.O. 8A @ 250VAC (AC1) - S.O. 6A @ 250V AC (AC1) - P.S.O. 8A @ 250VAC (AC1) - S.O. 6A @ 250V AC (AC1) - P.S.O. 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1)
50% Fault level output - No No - - -
Adjustment cover and tamperproof seal Yes Yes Yes No No No
Ratio - - - - - -
Internal Dimension - - - - - -
External Dimensions in mm - - - - - -

ELRP48 Series   48 x 48 Panel Mounting


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Earth Leakage Relays
ELRP48V-30
DIMS: (mm) H.48 W.48 D.76*
(*behind panel)
Type No
Earth Leakage Relays ELRP48V-30
Description Earth Leakage Relay
Function Variable - Type A (True R.M.S.)
Supply voltage Un 12 - 125V DC, 24, 115V, 230V 50/60Hz
Sensitivity IDn 30, 100, 300, 500mA, 1, 3, 5, 10, 20, 30A (selectable)
Range 0 - 30A
Time delay inst., 0.06, 0.15, 0.25, 0.5, 0.8, 1, 2.5, 5, 10sec. (selectable)
LED indication Power On indication (Green)
  Tripped indication (Red) - LED flashes during toroid open circuit
  LED Bargraph showing leakage current (25, 50 and 75% of IDn)
Test/Reset facility Local and Remote
Output 1 x SPDT (S.O.)/ 1 x SPNO (P.S.O.)
Output rating 8A @ 250VAC (AC1) - S.O., 6A @ 250V AC (AC1) - P.S.O.
50% Fault level output -
Adjustment cover and tamperproof seal Yes
Ratio -
Internal Dimension -
External Dimensions in mm -

ELRV Series   DIN Rail Mtg


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Earth Leakage Relays
ELRV-10

DIMS: (mm) H.85 W.70 D.63.5


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Earth Leakage Relays
ELRV-30

DIMS: (mm) H.85 W.70 D.63.5
Type No
Earth Leakage Relays ELRV-30
ELRV-10
Description Earth Leakage Relay Earth Leakage Relay
Function Variable - Type A (True R.M.S.) Variable - Type A
Supply voltage Un 10 - 60V DC
24, 115, 230, 400V AC 50/60Hz
220/240V AC 50/60Hz
Sensitivity IDn 16 settings ranging from 6mA to 30A 30, 50, 75, 100mA (selectable)
Range mA and Amps x1, x10, x100 (selectable)
Time delay 8 settings ranging from inst. to 10 seconds inst., 50, 250, 500mS
LED indication Tripped indication Tripped indication
  LED display for indicating user Bargraph indicating
  settings and leakage current % leakage current
Test/Reset facility Local and Remote Local and Remote
Output 2 x SPDT Relays 2 x SPDT Relays
Output rating 8A @ 250VAC (AC1) 8A @ 250V AC
50% Fault level output 10W max. up to 240V max. 10W max. @ Un
Adjustment cover and tamperproof seal Yes Yes
Ratio - -
Internal Dimension -
Now Discontinued
External Dimensions in mm -
See ELRM44V-30 or ELRV-30

ELR-IF Series   DIN Rail & Surface Mtg


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Earth Leakage Relays
ELR-IF
DIMS: (mm) H.110 W.70 D.37
Type No
Earth Leakage Relays ELR-IF-0300
Earth Leakage Relays ELR-IF-0100
Earth Leakage Relays ELR-IF-0030
Description Earth Leakage Relay with Internal Toroid Earth Leakage Relay with Internal Toroid Earth Leakage Relay with Internal Toroid
Function Fixed - Type A (True R.M.S.) Fixed - Type A (True R.M.S.) Fixed - Type A (True R.M.S.)
Supply voltage Un 120V, 240V AC 50/60Hz 120V, 240V AC 50/60Hz 120V, 240V AC 50/60Hz
Sensitivity IDn 300mA 100mA 30mA
Range - - -
Time delay 100mS 100mS inst. (<25mS when fault current @ 5 x IDn)
LED indication Power On indication (Green) Power On indication (Green) Power On indication (Green)
  Tripped indication (Red) - LED flashes if fault current >50% of IDn Tripped indication (Red) - LED flashes if fault current >50% of IDn Tripped indication (Red) - LED flashes if fault current >50% of IDn
  - - -
Test/Reset facility Local only Local only Local only
Output 1 x SPDT (S.O.) 1 x SPDT (S.O.) 1 x SPDT (S.O.)
Output rating 5A @ 250VAC (AC1) 5A @ 250VAC (AC1) 5A @ 250VAC (AC1)
50% Fault level output - - -
Adjustment cover and tamperproof seal No No No
Ratio - - -
Internal Dimension 25mm dia. intergral toroid 25mm dia. intergral toroid 25mm dia. intergral toroid
External Dimensions in mm - - -

ELRF Series   DIN Rail Mtg


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Earth Leakage Relays
ELRF003

DIMS: (mm) H.85 W.70 D.63.5
Type No
ELRF0300
ELRF0100
ELRF0030
Description Earth Leakage Relay Earth Leakage Relay Earth Leakage Relay
Function Fixed - Type A Fixed - Type A Fixed - Type A
Supply voltage Un 110/115V, 220/240V AC 50/60Hz 110/115V, 220/240V AC 50/60Hz 110/115V, 220/240V AC 50/60Hz
Sensitivity IDn 300mA 100mA 30mA
Range - - -
Time delay inst. inst. inst.
LED indication Tripped indication Tripped indication Tripped indication
  - - -
  - - -
Test/Reset facility Local only Local only Local only
Output SPDT Relay SPDT Relay SPDT Relay
Output rating 8A @ 250V AC 8A @ 250V AC 8A @ 250V AC
50% Fault level output - - -
Adjustment cover and tamperproof seal No No No
Ratio - - -
Internal Dimension
Now Discontinued
Now Discontinued
Now Discontinued
External Dimensions in mm
See ELRM44F-0300
See ELRM44F-0100
See ELRM44F-0030

Circular and Rectangular Toroid


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Earth Leakage Relays
BZCT Circular Toroids


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Earth Leakage Relays
BZCTR Rectangular Toroids
Type No
Earth Leakage Relays BZCT035
Earth Leakage Relays BZCT070
Earth Leakage Relays BZCT120
Earth Leakage Relays BZCT210
Earth Leakage Relays BZCTR305
Earth Leakage Relays BZCTR350
Earth Leakage Relays BZCTR470
Description Circular Toroid 35mm Circular Toroid 70mm Circular Toroid 120mm Circular Toroid 210mm Rectangular Toroid 305mm Rectangular Toroid 350mm Rectangular Toroid 470mm
Function 35mm Toroid 70mm Toroid 120mm Toroid 210mm Toroid 115 x 305mm Toroid 150 x 350mm Toroid 160 x 470mm Toroid
Supply voltage Un - - - - - - -
Sensitivity IDn - - ELR IDn trip setting must be >100mA ELR IDn trip setting must be >300mA - - -
Range - - - - - - -
Time delay - - - - - - -
LED indication - - - - - - -
  - - - - - - -
  - - - - - - -
Test/Reset facility - - - - - - -
Output - - - - - - -
Output rating - - - - - - -
50% Fault level output - - - - - - -
Adjustment cover and tamperproof seal - - - - - - -
Ratio 1/1000 1/1000 1/1000 1/1000 1/1000 1/1000 1/1000
Internal Dimension 35mm 70mm 120mm 210mm 115 x 305mm 150 x 350mm 160 x 470mm
External Dimensions in mm H.74 W.64 D*.40 *inc mounting feet H.117 W.105 D*.40 *inc mounting feet H.170 W.155 D*.40 *inc mounting feet - H.240 W.402 D.55 H.285 W.460 D.55 H.263 W.572 D.72


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