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Thermal overload relays

Stand-alone installation Siemens SIRIUS 3RU29263AA01
Stand-alone installation Siemens SIRIUS 3RU29263AA01
Stand-alone installation support for 3RU/3RB/3RR, Din rail mount, Size S0, Screw connection
Item number: 101493
MSRP: $31.10
$22.08
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 3.3A 3K SCREW EXP - 1298000800
Overload relay LS ELECTRIC MT-32 3.3A 3K SCREW EXP - 1298000800
Overload relay for motor protection, 2.5-4 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403894
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
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Overload relay LS ELECTRIC MT-32 27A 3K SCREW EXP - 1298001700
Overload relay LS ELECTRIC MT-32 27A 3K SCREW EXP - 1298001700
Overload relay for motor protection, 22-32 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403903
-20 % MSRP: $53.96
$43.17
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Stand-alone installation Siemens SIRIUS 3RU29163AA01
Stand-alone installation Siemens SIRIUS 3RU29163AA01
Stand-alone installation support for 3RU/3RB/3RR, Size S00, Screw connection
Item number: 101492
MSRP: $25.60
$18.18
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21264PB0
Overload relay Siemens SIRIUS 3RU21264PB0
Overload relay for motor protection, 30-36 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101490
MSRP: $202.00
$155.54
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21161FB0
Overload relay Siemens SIRIUS 3RU21161FB0
Overload relay for motor protection, 3.5-5 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101339
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21160JB0
Overload relay Siemens SIRIUS 3RU21160JB0
Overload relay for motor protection, 0.70-1 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101332
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 0.14A 3K SCREW EXP - 1298000100
Overload relay LS ELECTRIC MT-32 0.14A 3K SCREW EXP - 1298000100
Overload relay for motor protection, 0.1-0.16 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403887
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 0.82A 3K SCREW EXP - 1298000500
Overload relay LS ELECTRIC MT-32 0.82A 3K SCREW EXP - 1298000500
Overload relay for motor protection, 0.63-1 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403891
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21160EB0
Overload relay Siemens SIRIUS 3RU21160EB0
Overload relay for motor protection, 0.28-0.40 A, Size: S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101328
MSRP: $122.50
$73.51
plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21161HB0
Overload relay Siemens SIRIUS 3RU21161HB0
Overload relay for motor protection, 5.5-8 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101341
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21161KB0
Overload relay Siemens SIRIUS 3RU21161KB0
Overload relay for motor protection, 9-12.5 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101343
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 34A 3K SCREW EXP - 1298002000
Overload relay LS ELECTRIC MT-32 34A 3K SCREW EXP - 1298002000
Overload relay for motor protection, 28-40 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403904
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 15A 3K SCREW EXP - 1298001400
Overload relay LS ELECTRIC MT-32 15A 3K SCREW EXP - 1298001400
Overload relay for motor protection, 12-18 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403900
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 19A 3K SCREW EXP - 1298001500
Overload relay LS ELECTRIC MT-32 19A 3K SCREW EXP - 1298001500
Overload relay for motor protection, 16-22 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403901
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 6.5A 3K SCREW EXP - 1298001000
Overload relay LS ELECTRIC MT-32 6.5A 3K SCREW EXP - 1298001000
Overload relay for motor protection, 5-8 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403896
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21261CB0
Overload relay Siemens SIRIUS 3RU21261CB0
Overload relay for motor protection, 1.8-2.5 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset, Internal earth-fault detection
Item number: 101345
MSRP: $131.50
$94.69
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21264AB0
Overload relay Siemens SIRIUS 3RU21264AB0
Overload relay for motor protection, 11-16 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101353
MSRP: $131.50
$94.69
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21161AB0
Overload relay Siemens SIRIUS 3RU21161AB0
Overload relay for motor protection, 1.1-1.6 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101334
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21161DB0
Overload relay Siemens SIRIUS 3RU21161DB0
Overload relay for motor protection, 2.2-3.2 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101337
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21160KB0
Overload relay Siemens SIRIUS 3RU21160KB0
Overload relay for motor protection, 0.90-1.25 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101333
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
Shipping the next business day
Overload relay Siemens SIRIUS 3RU21161JB0
Overload relay Siemens SIRIUS 3RU21161JB0
Overload relay for motor protection, 7-10 A, Size S00, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101342
MSRP: $122.50
$73.51
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21264EB0
Overload relay Siemens SIRIUS 3RU21264EB0
Overload relay for motor protection, 27-32 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101357
MSRP: $202.00
$145.44
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21264CB0
Overload relay Siemens SIRIUS 3RU21264CB0
Overload relay for motor protection, 17-22 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101355
MSRP: $131.50
$94.69
plus sales tax plus shipping
in stock
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Overload relay LS ELECTRIC MT-32 7.5A 3K SCREW EXP - 1298001100
Overload relay LS ELECTRIC MT-32 7.5A 3K SCREW EXP - 1298001100
Overload relay for motor protection, 6-9 A, Size MT-32, CLASS 10A, Screw connection, Auxiliary contacts 1 x NO/NC, Manual/Automatic reset
Item number: 403897
-20 % MSRP: $53.96
$43.17
plus sales tax plus shipping
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25

Operating principle of thermal overload relays

Motors are one of the most valuable components on any machine. For this reason, machine builders need to take every precaution to protect them. Thermal overload relays are probably the most effective protective devices available on the market you can use to protect your motors. In conjunction with a complementary main contactor, thermal overload relays can monitor and eliminate harmful overcurrent that would otherwise damage your motors.

Applications for thermal overload relays:

  • Motor overload
  • Phase failure

 

Order thermal overload relays online from Automation24

At Automation24, we offer thermal overload relays at excellent prices available online from Siemens and LS ELECTRIC. Choose the ideal relay for your application today. Like overload relay Siemens SIRIUS 3RU21161FB0 with a current range of 3.5-5 A, or for larger load requirements take a look at LS ELECTRIC MT-32 21.5A 3K SCREW EXP - 1298001600 with a 18-25 A range. All offered thermal overload relays can be matched with a corresponding main contactor.

At Automation24, we offer thermal overload relays at excellent prices. Select the perfect relay for your application today!

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