LAURITZ KNUDSEN / ELECTRICAL & AUTOMATION
Load break switches
On-load isolators and changeover switches for panel applications.
NOVA TRADING RANIGUNJ · SECUNDERABAD
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Utilization category, pole count, load current and enclosure requirements.
01
AC on-load isolators
02
ON/OFF versions
03
Changeover versions
04
Enclosure and mounting options
MANUFACTURER REFERENCE / August 2026
Details, down to
the catalog number.
Browse the supplied specification pages. Published MRP is a dated manufacturer reference; request a current Nova quote and confirm the tax basis and pack size.
Industrial Signaling Products Pricelist (1).pdf ↗ · PDF pages 18–20
3 catalog pages
PDF page 18 Load Break Switches [8536]
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Extracted reference text; use the original PDF to check column alignment, variants and price units.
Load Break Switches [8536]
AC ON LOAD ISOLATORS
› AC 23 Utilization category
› Range from 16-125 Amps upto 8 pole
› Multiple mounting options, ABS / Aluminium sheet steel
enclosures / IP65 / NEMA Rated
› Add on pole Power / Neutral & Auxiliary pole
› Changover switches from 25-125 Amps upto 4 poles
Confirms to IEC 60947-1 & 3, EN 60947-3, UL60947-4-1
B03 MB34 SB31M
LB 3 Pole ON - OFF Switches
Can also M.R.P. (`) Per Unit
Description Cat. No. be given on
request 16A 20A 25A 32A 40A 63A 80A 100A 125A
(C) (D) (E) (F) (G) (I) (J) (K) (L)
Single Hole MTG Switch with
LBX32300B19FPYR 1118 1141 * * * * * * *
Flag Knob
Front Plate MTG with Flag
LBX32300B40FPYR 1088 1118 * * * * * * *
Knob
Front Panel MTG with B03
LBX32300B03FLYR 32309 994 1019 1103 1141 1313 1407 * * *
(48x48) Plate
Front Panel MTG with B13
LBX32300B13FLYR 32306/32309 994 1019 1103 1141 1313 1407 3557 4464 5606
(64x64) Plate with Flag Knob
Front Panel MTG with B13
LBX32300B13BGYR 32309 * * 1214 1255 1420 1500 * * *
(64x64) Plate with BG Handle
DIN Rail MTG Switch with
LBX32300B23FLGB * * 1103 1141 1313 1407 * * *
Flag Knob
Rectangular Pad Lock Switch
LBX32300B30TDYR * * 1336 1407 1544 1624 * * *
with TDYR
Round Pad Lock Switch with
LBX32309B33RDYR 1088 1117 1214 1255 1420 1500 3858 4814 6017
RDYR
Switch with B63 Lock & Key
LBX32309B63TDYR * * 1845 1929 2090 2145 * * *
Version
Base MTG Switch with DIL
LBX32309MB34RDYR 1738 1791 1929 2035 2119 2281 5139 6417 8021
and Pad Lock
Base MTG Switch with BG
LBX32309MB42BGYR 1738 1791 1929 2035 2119 2281 5139 6417 8021
Handle
Switch in Polycarbonate
LBX32300B31SMRDYR 2204 2270 2453 2516 * * * * *
Enclosure - in B31SM
Switch in Polycarbonate
LBX32309B31MRDYR * * * * 2751 2820 * * *
Enclosure - in B31M
Switch in Polycarbonate
Enclosure - in B31L with LBX32309B31LLHYR * * * * * * 7239 8530 10123
Leech Handle
Switch in SS Enclosure - in
LBX32309SB31LLHYR * * * * * * 7239 8530 10123
SB31L with Leech Handle
Note : To make the complete cat number, replace “X” in the above cat.no with the appropriate current rating code.
(Example: For LBX32300B19FPYR with a 16A rating ( 16A code = C), the complete code becomes LBC32300B19FPYR.)
13 Lauritz Knudsen, 15.08.2026PDF page 19 LB 4 Pole ON - OFF Switches
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LB 4 Pole ON - OFF Switches
Can also M.R.P. (`) Per Unit
Description Cat. No. be given on
request 16A 20A 25A 32A 40A 63A 80A 100A 125A
(C) (D) (E) (F) (G) (I) (J) (K) (L)
Single Hole MTG Switch with Flag Knob LBX32400B19FPYR 1390 1420 * * * * * * *
Front Plate MTG with Flag Knob LBX32400B40FPYR 1366 1390 * * * * * * *
Front Panel MTG with B03 (48x48) Plate LBX32400B03FLYR 32409 1268 1296 1408 1448 1694 1791 * * *
Front Panel MTG with B13 (64x64) Plate
LBX32400B13FLYR 32406/32409 1268 1296 1408 1448 1694 1791 4368 5480 6867
with Flag Knob
Front Panel MTG with B13 (64x64) Plate
LBX32400B13BGYR 32409 1517 1557 1805 1888 * * * * *
with BG Handle
DIN Rail MTG Switch with Flag Knob LBX32400B23FLGB * * 1408 1448 1694 1791 * * *
Rectangular Pad Lock Switch with TDYR LBX32400B30TDYR * * 1637 1706 1925 2010 * * *
Round Pad Lock Switch with RDYR LBX32409B33RDYR 1366 1390 1517 1557 1805 1888 4464 5573 6968
Switch with B63 Lock & Key Version LBX32409B63TDYR * * 2145 2230 2472 2531 * * *
Base MTG Switch with DIL andPad Lock LBX32409MB34RDYR 2010 2064 2230 2335 2506 2669 5951 7430 9285
Base MTG Switch with BG Handle LBX32409MB42BGYR 2010 2064 2230 2335 2506 2669 5951 7430 9285
Switch in Polycarbonate Enclosure - in B31SM LBX32400B31SMRDYR 2472 2546 2751 2818 * * * * *
Switch in Polycarbonate Enclosure - in B31M LBX32409B31MRDYR * * * * 3133 3204 * * *
Switch in Polycarbonate Enclosure - in
LBX32409B31LLHYR * * * * * * 8052 9545 11389
B31L with Leech Handle
Switch in SS Enclosure - in SB31L with
LBX32409SB31LLHYR * * * * * * 8052 9545 11389
Leech Handle
Auxiliary Contact FM / RM 279 279 345 345 345 345 1019 1019 1019
Add-on Contact Additional Pole FM / RM 289 299 322 361 420 454 1190 1469 1634
Note : Standard packing upto 63A switches is 5 Nos.
Note : To make the complete cat number, replace “X” in the above cat.no with the appropriate current rating code.(Example: For
LBX32300B19FPYR with a 16A rating ( 16A code = C), the complete code becomes LBC32300B19FPYR.)
Lauritz Knudsen, 15.08.2026 14PDF page 20 Ordering Code for Load Break and Changeover Switches
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Ordering Code for Load Break and Changeover Switches
LB XXXXX XXXXX XX XX
Load Switch Programme Mounting Knob
Break Colour
Rating Code Options Options
Switch
Example
LB Switches, 63A, 3P, 9 O'clock, 4
hole front mounting, with metal shaft, LB I 32309 MB34 RD YR Description
yellow front plate, red round knob LB I 32309 MB34 RD YR
Yellow Front Plate/
Red Knob
64 x 64 Front Plate
Round Knob with
Padlock (R)
Metal Shaft with
Round Knob with
Padlock and Interlock
3Pole 9 O' Clock "OFF"
63A
Load Break Switch
Accessories LB I
R NC
32 Description
LB X X XX XXX
32A
Switch F-Front Mounting MC-Main Module 20 - 16A to 20A
Rating 32 - 25A to 32A Neutral Module
R-Rear Mounting NC-Neutral Module 63 - 40A to 63A Rear Mounting
80 - 80A
125 - 100A,
125A & 80A 63 A
AC-Auxiliary Module
Load Break Switch
Rating Selection Table
Ampere Code
(A) ()
16 C
20 D
25 E
32 F
40 G
63 I
80 J
100 K
125 L
*** Note : Please contact nearest E&A branch office.
15 Lauritz Knudsen, 15.08.2026No matching text found. Try a shorter model code or check the original PDF, including illustrated pages.
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