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Contactor Overload Relays

What are Contactor Overload Relays?

The entire electric motor comes with a warranty to let them work reliably, efficiently, and safely. Since a protective system is our main concern, however, some causes happen with the failure of electrical overload, often referred to as overcurrent. As soon as a motor brings high voltage as compared to the designed to tackle its failures, the temperature develops a system consequence of overheating. Motor windings and coils are harmed by this. The motor and its circuit need to be protected, which is where connector overload relays might be useful. Schneider Electric, Siemens, ABB, Eaton, Lovato, and Rockwell Automation are just a few of the prestigious industry companies that offer a wide selection of high-quality connector overload relays.

What is Overload Safety?

Overload is usually referred to as a motor drawing a potential voltage over the rated value for a long time. Since they lead to overheating in the motor, which caused damage and failures in the system. In order to monitor or control such scenarios, devices like contactor relays are primarily manufactured for industrial control and automated motor protection. They are used with integrated contractors as a component of a machine starter and control board. 

What are the Various types of Contactor Overload Relays?

Motor safety devices are categorized into two prime types such as thermal types and electronic types.

Thermal Relays:

The thermal overload relays make use of a bi-metallic plate situated immediately to the heating object. When a current excessively passes through the heating device Normally closed connection turns over and starts contacts. The interference power ranges from flowing to the connection's automated or control circuit. Typically, thermal overloads have a manual or automatic reset option as well as an adjustable current range.

Electronic Relays:

Electronic overload relays don't operate using a bi-metallic mechanism; instead, they measure the load current using parts like temperature sensors. They often have a larger current range and are more precise than thermal devices. A selectable trip class offers improved trip prevention against single phasing against the motor.

Why Enrgtech?

Enrgtech offers an extensive collection of durable and reliable contactor overload relays with excellent specifications. We rank in the market for product durability, excellence, designs, and varied desired applications. Visit our website to explore other product categories and order inexpensively using our eCommerce platform with efficient delivery services.

 


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3RB3026-1PB0, Siemens
8 In Stock
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1 +
£ 77.55
1SAZ211201R1051, ABB
8 In Stock
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£ 66.14
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£ 62.83
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£ 59.53
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11BG0031D024, Lovato
23 In Stock
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£ 36.33
3RT2016-1JB41, Siemens
42 In Stock
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£ 40.43
3RU2116-1JC1, Siemens
2 In Stock
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£ 51.73
RW17-1D3-D018, WEG
1 In Stock
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£ 28.74
RFE450200, Lovato
1 In Stock
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£ 75.11
RFE453200, Lovato
2 In Stock
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£ 94.20
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1SAZ421301R1006, ABB
2 In Stock
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£ 323.64
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1SAZ711201R1038 T16-5.7, ABB
2 In Stock
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£ 41.24
Lovato
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11RF975, Lovato
7 In Stock
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£ 46.27
190946 ZBT65-50, Eaton
1 In Stock
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£ 59.71
190961 ZBT12-0,4, Eaton
1 In Stock
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£ 22.89
190993 DILAT-03(230V50HZ/240V60HZ), Eaton
2 In Stock
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£ 41.84
1SAZ431201R1002 TF140DU-110, ABB
1 In Stock
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£ 210.63
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£ 200.09
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£ 189.57
1SAZ911201R1004 TF96-78, ABB
2 In Stock
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£ 135.11
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£ 128.35
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£ 121.62
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278435 ZB12-1, Eaton
5 In Stock
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£ 48.67
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£ 45.75
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£ 43.83
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278441 ZB12-12, Eaton
6 In Stock
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£ 48.67
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£ 45.75
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£ 43.83
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278464 ZB150-100, Eaton
2 In Stock
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£ 239.46
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£ 225.08
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£ 215.51
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1SAX121001R1103 EF19-2.7, ABB
3 In Stock
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£ 96.75
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£ 91.92
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£ 87.09
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1SAX121001R1104 EF19-6.3, ABB
5 In Stock
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£ 102.26
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£ 97.16
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£ 92.03
Schneider Electric
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LRD365L, Schneider Electric
1 In Stock
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£ 254.03
Schneider Electric
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CA2KN22M7, Schneider Electric
37 In Stock
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£ 33.64
Schneider Electric
LRD21, Schneider Electric
96 In Stock
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£ 59.16
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£ 55.62
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£ 53.22
Schneider Electric
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CA4KN313BW3, Schneider Electric
1 In Stock
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£ 54.52
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New Items
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010157  DILER-31-G(24VDC), Eaton

010157 DILER-31-G(24VDC), Eaton

Eaton Contactor Overload Relays - DILE Mini Contactor Relays Features and Benefits
New items
ZBT32-16, Eaton

ZBT32-16, Eaton

The Eaton low voltage industrial component or thermal overload relay has a Test or off button, Reset pushbutton manual or auto, Trip-free release button used with DILMT7, DILMT9, DILMT12, DILMT17, DILMT25, DILMT32. 55°C maximum operating ambient temperature ZBT12 frame size Direct mounting -25°C minimum operating ambient temperature Climatic proofing
New items
051774  DILER-22(110V50HZ,120V60HZ), Eaton

051774 DILER-22(110V50HZ,120V60HZ), Eaton

Eaton Contactor Overload Relays - DILE Mini Contactor Relays Features and Benefits
New items
278451  ZB32-10, Eaton

278451 ZB32-10, Eaton

Eaton Contactor Overload Relay – ZB Series Thermal Overload Relays Features and Benefits 493-0488 513-0336
New items
276316  DILA-40(24V50HZ), Eaton

276316 DILA-40(24V50HZ), Eaton

Eaton Contactor Overload Relays - DILA Series Industrial Control Relays Features and Benefits
New items
276326  DILA-40(110V50HZ,120V60HZ), Eaton

276326 DILA-40(110V50HZ,120V60HZ), Eaton

Eaton Contactor Overload Relays - DILA Series Industrial Control Relays Features and Benefits
New items
XTOM012AC1, Eaton

XTOM012AC1, Eaton

Eaton Cutler-Hammer Miniature Overload Relays The Cutler-Hammer XT miniature overload relays from Eaton feature non reversing and reversing mini contactors, mini overload relays and Snap-On accessories. The XT range of mini overload relays has a compact design which is best suited to be applied in light duty loads such as hoisting, packaging, heating, lighting and automation systems. Economically and environmentally friendly Compact design Phase Failure Sensitivity Direct Mount to XTMC Mini Contactors Trip Class 10 9 Settings to Cover 0.24-12 A Eaton XT Series
New items
3RB3026-1PB0, Siemens

3RB3026-1PB0, Siemens

Solid State Overload Relay - 3RB range 3RB30 and 3RB31 solid-state overload relays up to 80 A with internal power supply have been designed for current-sensitive protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure Switch position indicator and test function Trip class setting/internal ground-fault detection Selector switch for manual/automatic reset Class 10 and Class 20 Direct mounting PTB 09 ATEX 3001 Ex II (2) GD Approvals CE, UL, CSA Electronic Overload Relays The 3RB2 range of Solid State Electronic overloads can be connected directly to Siemens SIRIUS contactors to provide accurate motor overload protection with enhanced single phase sensitivity,Application: Protection of 3 phase AC motors in sinusoidal 50/60Hz network. These relays are not suitable for the protection of single phase or DC loads,Select according to motor full load current and contactor frame size e,g. S00
New items
1SAZ211201R1051, ABB

1SAZ211201R1051, ABB

Thermal Overload Relays Type TA 25 One N/O and one N/C auxiliary contact Trip class 10A Manual/auto reset 80 x 44 x 94mm (H x W x D) (4 to 11kW) Vertical mounting For use with A series contactors 4 to 11 kW for contactor series A9 to A30 Note ONLY SUITABLE FOR USE WITH 'A' SERIES CONTACTORS
New items
11BG0031D024, Lovato

11BG0031D024, Lovato

4-Pole Control Relays Rated insulation voltage UI: 690V Rated free air thermal current 10A All contacts are highly conductive Screw fixing or 35mm DIN rail attachment IP20 finger safe terminal protection Lovato Orange Contactors, Control Relays and Accessories
New items
3RT2016-1JB41, Siemens

3RT2016-1JB41, Siemens

Contactors - 3RT Range, Screw Connections The 3RT Range of Siemens Contactors. All models are highly reliable and extremely good quality. Screw Connection All models vary with Current rating and Voltage. Various NO/NC Values Siemens Sirius Range Contactor & Control Relays Siemens control gear for feeders up to 5.5kW. The complementary nature of the devices allows fast and simple assembly, for example, of motor starters and reversers. A perfect match between contactors, overloads, circuit breakers and accessories for the same power ratings provides a uniform panel appearance and the standard widths with no side-by-side mounting derating allows for space saving.
New items
3RU2116-1JC1, Siemens

3RU2116-1JC1, Siemens

Overload Relay - 3RU range Switch position indicator and test function STOP button Selector switch for manual/automatic reset Screw connection or Spring-clamp versions Impulse voltage resistance 6 kV Insulation voltage 690V Surface or DIN-rail stand-alone mounts available, see 706-1699 etc The 3RU21 thermal overload relays up to 80 A have been designed for current-sensitive protection of loads with normal starting. These thermal overload relays for use with Sirius Size S0 & S00 Contactors Note Screw terminals can only be used with screw terminal overloads and spring terminals can only be used with spring terminal overloads. Approvals CE, UL, CSA Siemens Sirius Range Contactor & Control Relays Siemens control gear for feeders up to 5.5kW. The complementary nature of the devices allows fast and simple assembly, for example, of motor starters and reversers. A perfect match between contactors, overloads, circuit breakers and accessories for the same power ratings provides a uniform panel appearance and the standard widths with no side-by-side mounting derating allows for space saving.
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Contactor Overload Relays and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Contactor Overload Relays or any other product.
This depends on the Contactor Overload Relays individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Contactor Overload Relays and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Contactor Overload Relays.
Yes. We keep updating our stock frequently and if a product like Contactor Overload Relays is not in stock then we will let you know.