ຣີເລຍໂຫຼດຄວາມຮ້ອນເກີນ
Compare VIOX thermal overload relay series for motor overload protection and coordinated contactor starters. Confirm adjustment range, trip characteristics and contactor compatibility by model.
ການປ້ອງກັນການໂຫຼດເກີນຂອງມໍເຕີResponds to sustained overload
Current adjustmentMatch the motor nameplate
Starter coordinationPair with contactor and SCPD
Reset and signalingConfirm model functions
ເທີມອນໂອເວີໂຫຼດຣີເລ (Thermal overload relay) ແມ່ນຫຍັງ?
A thermal overload relay monitors motor current and operates its control contacts when a sustained overload condition exceeds its time-current characteristics. It is commonly coordinated with a contactor in a motor starter.
An overload relay does not normally provide short-circuit interruption. Its adjustment range, trip behavior, phase sensitivity, reset mode, auxiliary contacts, contactor compatibility and upstream short-circuit protection must be selected together.
Overload Relay Series Overview
ປຽບທຽບຮຸ່ນ VIOX ທີ່ເຜີຍແຜ່ໂດຍໃຊ້ຂໍ້ມູນທີ່ມີຢູ່ແລ້ວໃນຂໍ້ມູນຜະລິດຕະພັນ.
VIOX JR28
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນ
VIOX JR36
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນ
VIOX LR2-D13
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນVIOX LR2-D23
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນ
VIOX LR2-D33
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນ
New Type Thermal Relay LRD-13
ເຣເລໂຫຼຸດໂຫຼດຄວາມຮ້ອນກວດສອບຂໍ້ມູນຮຸ່ນHow to choose an overload relay
Begin with the motor nameplate current and starter combination, then verify trip and reset requirements.
ຊ່ວງການປັບ
Select a range that includes the motor rated current and follow the setting instructions.
ລັກສະນະການເດີນທາງ
Match starting time, duty and applicable motor-protection requirements.
ຄວາມເຂົ້າກັນໄດ້ກັບຄອນແທັກເຕີ (Contactor)
Confirm mechanical mounting, current path and accessory compatibility.
Reset and auxiliary functions
Define manual or automatic reset, test, stop and signaling needs.
Coordinate three protection roles
A complete starter coordinates switching, overload response and short-circuit protection.
Compare published Overload Relay series
ຊ່ອງຫວ່າງໝາຍເຖິງຄ່ານັ້ນບໍ່ມີຢູ່ໃນບົດສະຫຼຸບຜະລິດຕະພັນປັດຈຸບັນ. ກະລຸນາເປີດໜ້າຮຸ່ນຜະລິດຕະພັນ ຫຼື ຮ້ອງຂໍເອກະສານຂໍ້ມູນທາງເຕັກນິກ (datasheet) ກ່ອນການກຳນົດສະເປັກ.
| ຕໍ່ລຽນ | ຊ່ວງການປັບ | ລະດັບການຕັດວົງຈອນ (Trip class) | ຣີເຊັດ | Contactor series |
|---|---|---|---|---|
| VIOX JR28 | — | — | — | — |
| VIOX JR36 | — | — | — | — |
| VIOX LR2-D13 | — | — | — | — |
| VIOX LR2-D23 | — | — | — | — |
| VIOX LR2-D33 | — | — | — | — |
| New Type Thermal Relay LRD-13 | — | — | — | — |
Overload Relay Applications
ສະພາບແວດລ້ອມທົ່ວໄປທີ່ຕ້ອງມີການກວດສອບຄຸນລັກສະນະຂອງຜະລິດຕະພັນຢ່າງລະອຽດ.
Overload Relay Selection Questions
ຄຳຕອບດ່ວນສຳລັບການປຽບທຽບກຸ່ມຜະລິດຕະພັນເບື້ອງຕົ້ນ ກ່ອນການກວດສອບວົງຈອນຢ່າງລະອຽດ.
What does a thermal overload relay protect against?
It responds to sustained motor overload according to its characteristics and operates the starter control circuit. Exact protection functions vary by model.
Does an overload relay provide short-circuit protection?
Normally no. A coordinated fuse, circuit breaker or motor protective device is required for short-circuit protection.
How is the adjustment range selected?
Choose a relay range that includes the motor nameplate current, then set and commission it according to the motor, starter and product instructions.
What is trip class?
Trip class describes the relay operating-time characteristic under specified overload conditions. The required class depends on the motor starting and protection needs.
Must the relay match the contactor?
Yes. Verify electrical rating, direct-mount or separate-mount compatibility, terminal arrangement and accessory coordination.
Need the Right Overload Relay?
Let’s Coordinate the Motor Starter.
Send the motor nameplate current, starting duty, contactor series, reset requirements, quantity and target market. VIOX will help narrow the relevant published series.
Request Overload Relay Support