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Showing Results For: Thermal Breakers
Thermal Breakers
Thermal breakers are essential protective devices designed to prevent excessive currents from the circuits and protect them from short-circuits or tripping. Unlike fuses, these breakers work similarly; however, a thermal breaker consists of a switch that can be reset in case of tripping. These safety devices can effectively avoid fires, damage, or other electrical dangers resulting from voltage fluctuations.
How many types of thermal breakers are there?
Thermal breakers are classified into two main types, i.e., thermal magnetic circuit breakers and thermal automotive circuit breakers.
- Thermal magnetic circuit breakers
These circuit breakers are designed to protect circuits from overcurrent with integrated electromagnetic and bimetallic strips that respond by tripping or opening the circuit. They protect the circuits and quickly respond to electrical surges or poor grounding.
- Thermal automotive circuit breakers
Unlike magnetic circuit breakers, thermal automotive circuit breakers disrupt the current flow in automotive circuits to prevent faults like short circuits or overloads. These circuit breakers are designed for automotives, where engines remain on for a shorter period of time.
What is the difference between thermal circuit breakers and fuses?
Generally, thermal circuit breakers provide sophisticated circuit protection with automated switches that disrupt the current flow in the event of short circuits or overloads. The main difference is that fuses burn out and need replacement, while circuit breakers only require reset.
Applications of thermal circuit breakers, magnetic circuit breakers, and automotive circuit breakers:
These protective circuit breakers are primarily designed to protect electrical circuits from damage during electric shocks and overloads.
However, they work in different environments, such as magnetic circuit breakers are suitable for use in distribution boards, while thermal automotive circuit breakers are widely suited for vehicles, including:
- Cars
- Vans
- Buses
- Boats, etc.
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118968, Eaton
The Eaton makes this Circuit breaker which is developed for use in motor circuits with contactor. The mounting is always flexible due to the modular function groups, with electronic release for the motor protection with phase failure sensitivity. These motor protection circuit breaker from NZM..-ME..NA series cover all applications with only four compact sizes, and this device is rated for 140 A at 690 Vac and it has 3 poles.
It comes with additional motor protective features
Adjustable overload releases Ir and adjustable time delay setting to overcome current peaks
New items
142421, Eaton
The Eaton makes this Circuit breaker which is developed for use in motor circuits with contactor. The mounting is always flexible due to the modular function groups, with electronic release for the motor protection with phase failure sensitivity. These motor protection circuit breaker from NZM..-ME..NA series cover all applications with only four compact sizes, and this device is rated for 90 A at 480 V and it has 3 poles.
It comes with additional motor protective features
Adjustable overload releases Ir and adjustable time delay setting to overcome current peaks
New items
New items
GV4PEM02S, Schneider Electric
New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module.
b Magnetic GV4L: to be used with an overload relay or a drive
b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20)
b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have
a side module SDx for alarming and fault differentiation.
New items
W28-XQ1A-15, TE Connectivity
W28 series thermal cut-outs
Flush-mount circuit breaker models to protect apparatus.
Valued for their thermal protection of small electronic assemblies.
Front panel mount.
Fuse holder type.
Resettable.
Stock
current
resistance
no.
(A)
(Ω)
167-5728
8
0.016
167-5677
10
0.011
167-5699
15
0.007
Max. voltage temp.:
250 Vac
32 Vdc
Dielectric:
>1500 V
Colour:
black
Pin length:
6.35 mm
Footprint beyond panel:
49.3 mm
Panel thickness:
1.5 mm max.
Drilled hole:
15.87 mm
Dimensions (mm):
W 19.31 x H 19.31
Approvals
UL 1077, E 69543, CSA,
LR 15734, CS 2190N
Thermal Magnetic Convertible
All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).
New items
New items
New items
New items
GB2DB08, Schneider Electric
GB2 Thermal Magnetic Circuit Breakers
DIN rail mounted, mechanically reset protection devices.
Short circuit and overload protection for control circuits and associated industrial equipment, e.g. solenoid valves, electric brakes and transformers, etc
Rated operational voltage of 415V
74mm high; depth 67mm (1P) 70mm (2P)
Standards
IEC947-2
New items
GV2ME016, Schneider Electric
The Schneider Electric Motor circuit breaker with thermal magnetic technology. It can operate in any position.
Lugs terminals
Ambient air temperature for storage -40 to 80 °C
IP degree of protection IP20
New items
GV3P256, Schneider Electric
The Schneider Electric Motor circuit breaker with thermal magnetic technology. It can operate in any position.
Lugs terminals
Ambient air temperature for storage -40 to 80 °C
IP degree of protection IP20
New items
GV4L50B6, Schneider Electric
New TeSys GV4 is a compact and robust motor circuit breaker, up to 115 A with 100 kA breaking capacity, available with 3 kinds of protection: magnetic, electronic thermal magnetic, electronic thermal magnetic with advanced protections and alarming designed for demanding applications.TeSys GV4 is also equiped with patented Everlink power connections, and may be equiped with a wide range of accessories, mainly: auxiliaries (1 OF, 1SD, 1 coil MN or MX), rotary handle (direct, front extended or side) and advanced alarming and fault differentiation module.
b Magnetic GV4L: to be used with an overload relay or a drive
b Thermal magnetic GV4P: electronic protection with wide range setting, dual class (10 & 20)
b Multifunction motor protection GV4PEM: GV4P with adjustable advanced protections and possibility to have
a side module SDx for alarming and fault differentiation.