Termikus túlterhelési relék
Compare VIOX thermal overload relay series for motor overload protection and coordinated contactor starters. Confirm adjustment range, trip characteristics and contactor compatibility by model.
Motor túlterhelés elleni védelemResponds to sustained overload
Current adjustmentMatch the motor nameplate
Starter coordinationPair with contactor and SCPD
Reset and signalingConfirm model functions
Mi az a termikus túlterhelésvédelmi relé?
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
Hasonlítsa össze a közzétett VIOX modelleket a termékadatokban már rendelkezésre álló tények alapján.
VIOX JR28
Termikus túlterhelés reléModelladatok áttekintése
VIOX JR36
Termikus túlterhelés reléModelladatok áttekintése
VIOX LR2-D13
Termikus túlterhelés reléModelladatok áttekintéseVIOX LR2-D23
Termikus túlterhelés reléModelladatok áttekintése
VIOX LR2-D33
Termikus túlterhelés reléModelladatok áttekintése
New Type Thermal Relay LRD-13
Termikus túlterhelés reléModelladatok áttekintéseHow to choose an overload relay
Begin with the motor nameplate current and starter combination, then verify trip and reset requirements.
Beállítási tartomány
Select a range that includes the motor rated current and follow the setting instructions.
Utazási jellemzők
Match starting time, duty and applicable motor-protection requirements.
Mágneskapcsoló-kompatibilitás
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
Az üres cellák azt jelentik, hogy az érték nem érhető el az aktuális termékösszefoglalóban. Nyissa meg a modelloldalt, vagy kérje le az adatlapját a specifikáció előtt.
| Sorozat | Beállítási tartomány | Kioldási osztály | Reset | Contactor series |
|---|---|---|---|---|
| VIOX JR28 | — | — | — | — |
| VIOX JR36 | — | — | — | — |
| VIOX LR2-D13 | — | — | — | — |
| VIOX LR2-D23 | — | — | — | — |
| VIOX LR2-D33 | — | — | — | — |
| New Type Thermal Relay LRD-13 | — | — | — | — |
Overload Relay Applications
Tipikus környezetek, ahol a termék pontos jellemzőit ellenőrizni kell.
Overload Relay Selection Questions
Gyors válaszok az előzetes termékcsalád-összehasonlításhoz a részletes áramköri ellenőrzés előtt.
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