Service Hours: Monday to Friday,Saturday: Guangfu Road branch only, Closed on Sundays and public holidays. For specific hours, please see details for each branch.
All marked prices are tax-inclusive and in TWD. Free shipping for purchases over 1200 (mainland Taiwan).
Language: English Centenary Materials Co., Ltd.
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Categories Centenary Materials Co., Ltd.
02 Batteries & Chargers & Spot Weldings Centenary Materials Co., Ltd.
03 Cables / Wires & Accessories Centenary Materials Co., Ltd.
05 Capacitors Centenary Materials Co., Ltd.
06 Computer Accessories Centenary Materials Co., Ltd.
07 Cable Assembly Centenary Materials Co., Ltd.
09 RF Cable & RF Antenna & Coaxial Connectors & Tools Centenary Materials Co., Ltd.
10 Multipole-Connectors & Tools Centenary Materials Co., Ltd.
11 Terminals, Test Leads & Spring Probes Centenary Materials Co., Ltd.
13 Circular & Rectangular Heavy-Duty Industrial Connectors Centenary Materials Co., Ltd.
18 Fuses & Circuit Protections Centenary Materials Co., Ltd.
21 Lighting, Lamps & Torches Centenary Materials Co., Ltd.
23 Optoelectronics & Indicators Centenary Materials Co., Ltd.
27 Power Supplies & UPS Centenary Materials Co., Ltd.
29 Relays & Solenoids Centenary Materials Co., Ltd.
30 Resistors & Potentiometers Centenary Materials Co., Ltd.
31 Discretes, TVS, Traics, SCRs & Diacs Centenary Materials Co., Ltd.
47 Soldering & Desoldering Centenary Materials Co., Ltd.
49 Inductors & Filters Centenary Materials Co., Ltd.
50 Switches & Control Gear Centenary Materials Co., Ltd.
52 Timers, Counters & Hour Meters Centenary Materials Co., Ltd.
54 MPU Programmers & Development Tools Centenary Materials Co., Ltd.
57 Logic Analysis, EPROM Programmers & IC Test Sockets Centenary Materials Co., Ltd.
58 Multimeters & Panel Meters Centenary Materials Co., Ltd.
59 Oscilloscopes, Signal Generators & Frequency Counter Centenary Materials Co., Ltd.
62 Lubricants & Greases Centenary Materials Co., Ltd.
66 Fasteners, Fixings & Snap Rivets Centenary Materials Co., Ltd.
68 Hand Tools & Kits Centenary Materials Co., Ltd.
76 Enclosures, Storage & Tool Cases Centenary Materials Co., Ltd.
80 New Products Centenary Materials Co., Ltd.
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Thermal Overload Relays

Thermal overload relays are essential protection devices used in industrial motor control circuits to prevent equipment damage caused by overheating. These components monitor the current flowing to an electric motor and trigger a disconnection when a sustained overcurrent condition is detected. They are typically integrated into motor starter assemblies to safeguard against phase failure, stalled rotors, and prolonged mechanical overloads in various automation and machinery applications. When selecting a thermal overload relay, key considerations include the current adjustment range to match the motor's rated current, the operating voltage of the control circuit, and the trip class which determines the response time during an overload event. Users should also evaluate the mounting configuration and the number of poles required for the specific phase system. Ensuring the relay's thermal characteristics align with the motor's duty cycle is critical for maintaining operational stability and preventing nuisance tripping. Centenary Materials offers in-stock supply, fast quotation and sourcing service for parts not currently listed.
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