diff --git a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.html b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.html
index 238baaf835..93fe799f09 100644
--- a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.html
@@ -17,31 +17,33 @@
 -->
 <section class="tb-rate-limits-form" [formGroup]="rateLimitsListFormGroup">
   <div class="flex-1" [formGroup]="rateLimit" *ngFor="let rateLimit of rateLimitsFormArray.controls; let $index = index">
-    <div class="tb-rate-limits-operation" *ngIf="$index > 0 && rateLimitsFormArray.controls.length > 1" translate>
-      tenant-profile.rate-limits.but-less-than
-    </div>
+    @if($index > 0) {
+      <div class="tb-rate-limits-operation" translate>tenant-profile.rate-limits.and-also-less-than</div>
+    }
     <div class="flex flex-1 flex-row gap-2">
-      <mat-form-field hideRequiredMarker appearance="fill" class="mat-block flex-1">
+      <mat-form-field hideRequiredMarker appearance="fill" class="mat-block flex-1" subscriptSizing="dynamic">
         <mat-label translate>tenant-profile.rate-limits.number-of-messages</mat-label>
         <input matInput placeholder="{{ 'tenant-profile.rate-limits.number-of-messages' | translate }}"
                type="number" min="1" step="1" formControlName="value" required>
-        <mat-error *ngIf="rateLimit.get('value').hasError('required')">
-          {{ 'tenant-profile.rate-limits.number-of-messages-required' | translate }}
-        </mat-error>
-        <mat-error *ngIf="rateLimit.get('value').hasError('min')">
-          {{ 'tenant-profile.rate-limits.number-of-messages-min' | translate }}
-        </mat-error>
+        <mat-hint></mat-hint>
+        @if (rateLimit.get('value').hasError('required')) {
+          <mat-error translate>tenant-profile.rate-limits.number-of-messages-required</mat-error>
+        } @else if(rateLimit.get('value').hasError('min')) {
+          <mat-error translate>tenant-profile.rate-limits.number-of-messages-min</mat-error>
+        }
       </mat-form-field>
-      <mat-form-field hideRequiredMarker appearance="fill" class="mat-block flex-1">
+      <mat-form-field hideRequiredMarker appearance="fill" class="mat-block flex-1" subscriptSizing="dynamic">
         <mat-label translate>tenant-profile.rate-limits.per-seconds</mat-label>
         <input matInput placeholder="{{ 'tenant-profile.rate-limits.per-seconds' | translate }}"
                type="number" min="1" step="1" formControlName="time" required>
-        <mat-error *ngIf="rateLimit.get('time').hasError('required')">
-          {{ 'tenant-profile.rate-limits.per-seconds-required' | translate }}
-        </mat-error>
-        <mat-error *ngIf="rateLimit.get('time').hasError('min')">
-          {{ 'tenant-profile.rate-limits.per-seconds-min' | translate }}
-        </mat-error>
+        <mat-hint></mat-hint>
+        @if (rateLimit.get('time').hasError('required')) {
+          <mat-error translate>tenant-profile.rate-limits.per-seconds-required</mat-error>
+        } @else if (rateLimit.get('time').hasError('min')) {
+          <mat-error translate>tenant-profile.rate-limits.per-seconds-min</mat-error>
+        } @else if (rateLimit.get('time').hasError('duplicateTime')) {
+          <mat-error translate>tenant-profile.rate-limits.per-seconds-duplicate</mat-error>
+        }
       </mat-form-field>
       <button mat-icon-button type="button" color="primary"
               class="tb-rate-limits-button"
diff --git a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.scss b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.scss
index 3d8ba4058c..d2b825e311 100644
--- a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.scss
+++ b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.scss
@@ -18,7 +18,7 @@
 :host {
   .tb-rate-limits-form {
     @media #{$mat-gt-sm} {
-      min-width: 600px;
+      min-width: 620px;
     }
   }
 
diff --git a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.ts b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.ts
index 65618400af..075a89698d 100644
--- a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits-list.component.ts
@@ -14,22 +14,23 @@
 /// limitations under the License.
 ///
 
-import { Component, forwardRef, Input, OnDestroy, OnInit } from '@angular/core';
+import { Component, DestroyRef, forwardRef, Input, OnInit } from '@angular/core';
 import {
   ControlValueAccessor,
-  UntypedFormArray,
-  UntypedFormBuilder,
-  UntypedFormGroup,
+  FormArray,
+  FormBuilder,
+  FormControl,
+  FormGroup,
   NG_VALIDATORS,
   NG_VALUE_ACCESSOR,
   ValidationErrors,
   Validator,
+  ValidatorFn,
   Validators
 } from '@angular/forms';
-import { Subject, Subscription } from 'rxjs';
 import { RateLimits, rateLimitsArrayToString, stringToRateLimitsArray } from './rate-limits.models';
 import { isDefinedAndNotNull } from '@core/utils';
-import { takeUntil } from 'rxjs/operators';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 
 @Component({
   selector: 'tb-rate-limits-list',
@@ -48,51 +49,51 @@ import { takeUntil } from 'rxjs/operators';
     }
   ]
 })
-export class RateLimitsListComponent implements ControlValueAccessor, Validator, OnInit, OnDestroy {
+export class RateLimitsListComponent implements ControlValueAccessor, Validator, OnInit {
 
   @Input() disabled: boolean;
 
-  rateLimitsListFormGroup: UntypedFormGroup;
+  rateLimitsListFormGroup: FormGroup;
 
   rateLimitsArray: Array<RateLimits>;
 
-  private destroy$ = new Subject<void>();
-  private propagateChange = (v: any) => { };
+  private propagateChange = (_v: any) => { };
 
-  constructor(private fb: UntypedFormBuilder) {}
+  constructor(private fb: FormBuilder,
+              private destroyRef: DestroyRef) {}
 
   ngOnInit(): void {
     this.rateLimitsListFormGroup = this.fb.group({
       rateLimits: this.fb.array([])
     });
     this.rateLimitsListFormGroup.valueChanges
-      .pipe(takeUntil(this.destroy$))
+      .pipe(takeUntilDestroyed(this.destroyRef))
       .subscribe((value) => {
-        this.updateView(value?.rateLimits);
+        this.updateView(value?.rateLimits ?? []);
       }
     );
   }
 
   public removeRateLimits(index: number) {
-    (this.rateLimitsListFormGroup.get('rateLimits') as UntypedFormArray).removeAt(index);
+    this.rateLimitsFormArray.removeAt(index);
   }
 
   public addRateLimits() {
     this.rateLimitsFormArray.push(this.fb.group({
       value: [null, [Validators.required]],
-      time: [null, [Validators.required]]
+      time: [null, [Validators.required, this.uniqTimeRequired()]]
     }));
   }
 
-  get rateLimitsFormArray(): UntypedFormArray {
-    return this.rateLimitsListFormGroup.get('rateLimits') as UntypedFormArray;
+  get rateLimitsFormArray(): FormArray<FormGroup> {
+    return this.rateLimitsListFormGroup.get('rateLimits') as FormArray<FormGroup>;
   }
 
   registerOnChange(fn: any): void {
     this.propagateChange = fn;
   }
 
-  registerOnTouched(fn: any): void {
+  registerOnTouched(_fn: any): void {
   }
 
   setDisabledState?(isDisabled: boolean): void {
@@ -111,26 +112,26 @@ export class RateLimitsListComponent implements ControlValueAccessor, Validator,
   }
 
   writeValue(rateLimits: string) {
-    const rateLimitsControls: Array<UntypedFormGroup> = [];
+    const rateLimitsControls: Array<FormGroup> = [];
     if (rateLimits) {
-      const rateLimitsArray = rateLimits.split(',');
-      for (let i = 0; i < rateLimitsArray.length; i++) {
-        const [value, time] = rateLimitsArray[i].split(':');
+      this.rateLimitsArray = stringToRateLimitsArray(rateLimits);
+      this.rateLimitsArray.forEach((rateLimit) => {
         const rateLimitsControl = this.fb.group({
-          value: [value, [Validators.required]],
-          time: [time, [Validators.required]]
+          value: [rateLimit.value, [Validators.required]],
+          time: [rateLimit.time, [Validators.required, this.uniqTimeRequired()]]
         });
         if (this.disabled) {
           rateLimitsControl.disable();
         }
         rateLimitsControls.push(rateLimitsControl);
-      }
+      })
+    } else {
+      this.rateLimitsArray = null;
     }
     this.rateLimitsListFormGroup.setControl('rateLimits', this.fb.array(rateLimitsControls), {emitEvent: false});
-    this.rateLimitsArray = stringToRateLimitsArray(rateLimits);
   }
 
-  updateView(rateLimitsArray: Array<RateLimits>) {
+  private updateView(rateLimitsArray: Array<RateLimits>) {
     if (rateLimitsArray.length > 0) {
       const notNullRateLimits = rateLimitsArray.filter(rateLimits =>
         isDefinedAndNotNull(rateLimits.value) && isDefinedAndNotNull(rateLimits.time)
@@ -144,8 +145,22 @@ export class RateLimitsListComponent implements ControlValueAccessor, Validator,
     }
   }
 
-  ngOnDestroy() {
-    this.destroy$.next();
-    this.destroy$.complete();
+  private uniqTimeRequired(): ValidatorFn {
+    return (control: FormControl) => {
+      const formGroup = control.parent as FormGroup;
+      if (!formGroup) return null;
+
+      const formArray = formGroup.parent as FormArray;
+      if (!formArray) return null;
+
+      const newTime = control.value;
+      const index = formArray.controls.indexOf(formGroup);
+
+      const isDuplicate = formArray.controls
+        .filter((_, i) => i !== index)
+        .some(group => group.get('time')?.value === newTime && newTime !== '');
+
+      return isDuplicate ? { duplicateTime: true } : null;
+    };
   }
 }
diff --git a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits.models.ts b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits.models.ts
index f09f950ee7..a4ea52cf62 100644
--- a/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits.models.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/tenant/rate-limits/rate-limits.models.ts
@@ -17,8 +17,8 @@
 import { TranslateService } from '@ngx-translate/core';
 
 export interface RateLimits {
-  value: string;
-  time: string;
+  value: number;
+  time: number;
 }
 
 export enum RateLimitsType {
@@ -113,11 +113,11 @@ export function stringToRateLimitsArray(rateLimits: string): Array<RateLimits> {
   const result: Array<RateLimits> = [];
   if (rateLimits?.length > 0) {
     const rateLimitsArrays = rateLimits.split(',');
-    for (let i = 0; i < rateLimitsArrays.length; i++) {
-      const [value, time] = rateLimitsArrays[i].split(':');
+    for (const limit of rateLimitsArrays) {
+      const [value, time] = limit.split(':');
       const rateLimitControl = {
-        value,
-        time
+        value: Number(value),
+        time: Number(time)
       };
       result.push(rateLimitControl);
     }
@@ -128,7 +128,7 @@ export function stringToRateLimitsArray(rateLimits: string): Array<RateLimits> {
 export function rateLimitsArrayToString(rateLimits: Array<RateLimits>): string {
   let result = '';
   for (let i = 0; i < rateLimits.length; i++) {
-    result = result.concat(rateLimits[i].value, ':', rateLimits[i].time);
+    result = result.concat(rateLimits[i].value.toString(), ':', rateLimits[i].time.toString());
     if ((rateLimits.length > 1) && (i !== rateLimits.length - 1)) {
       result = result.concat(',');
     }
@@ -143,8 +143,8 @@ export function rateLimitsArrayToHtml(translate: TranslateService, rateLimitsArr
   });
   let result: string;
   if (rateLimitsHtml.length > 1) {
-    const butLessThanText = translate.instant('tenant-profile.rate-limits.but-less-than');
-    result = rateLimitsHtml.join(' <span class="disabled">' + butLessThanText + '</span> ');
+    const andAlsoText = translate.instant('tenant-profile.rate-limits.and-also-less-than');
+    result = rateLimitsHtml.join(` <span class="disabled">${andAlsoText}</span> `);
   } else {
     result = rateLimitsHtml[0];
   }
diff --git a/ui-ngx/src/assets/locale/locale.constant-ar_AE.json b/ui-ngx/src/assets/locale/locale.constant-ar_AE.json
index 61de661ac9..f5bebc2798 100644
--- a/ui-ngx/src/assets/locale/locale.constant-ar_AE.json
+++ b/ui-ngx/src/assets/locale/locale.constant-ar_AE.json
@@ -5247,7 +5247,6 @@
             "add-limit": "إضافة حد",
             "advanced-settings": "الإعدادات المتقدمة",
             "edit-limit": "تعديل الحد",
-            "but-less-than": "ولكن أقل من",
             "edit-transport-tenant-msg-title": "تعديل حدود معدل رسائل نقل المستأجر",
             "edit-transport-tenant-telemetry-msg-title": "تعديل حدود معدل رسائل تليمتري نقل المستأجر",
             "edit-transport-tenant-telemetry-data-points-title": "تعديل حدود معدل نقاط بيانات تليمتري نقل المستأجر",
diff --git a/ui-ngx/src/assets/locale/locale.constant-da_DK.json b/ui-ngx/src/assets/locale/locale.constant-da_DK.json
index d9a5172664..b0311b1295 100644
--- a/ui-ngx/src/assets/locale/locale.constant-da_DK.json
+++ b/ui-ngx/src/assets/locale/locale.constant-da_DK.json
@@ -5640,7 +5640,6 @@
       "add-limit": "Tilføj begrænsning",
       "advanced-settings": "Avancerede indstillinger",
       "edit-limit": "Rediger begrænsning",
-      "but-less-than": "men mindre end",
       "calculated-field-debug-event-rate-limit": "Fejlfindingshændelser for beregnede felter",
       "edit-calculated-field-debug-event-rate-limit": "Rediger hastighedsgrænser for fejlfindingshændelser for beregnede felter",
       "edit-transport-tenant-msg-title": "Rediger grænse for transportlejers beskeder",
@@ -9221,4 +9220,4 @@
       "zh_TW": "中文 (台灣)"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/assets/locale/locale.constant-de_DE.json b/ui-ngx/src/assets/locale/locale.constant-de_DE.json
index 766cac37f2..cddd85fa63 100644
--- a/ui-ngx/src/assets/locale/locale.constant-de_DE.json
+++ b/ui-ngx/src/assets/locale/locale.constant-de_DE.json
@@ -5640,7 +5640,6 @@
       "add-limit": "Limit hinzufügen",
       "advanced-settings": "Erweiterte Einstellungen",
       "edit-limit": "Limit bearbeiten",
-      "but-less-than": "aber weniger als",
       "calculated-field-debug-event-rate-limit": "Berechnete Feld-Debug-Ereignisse",
       "edit-calculated-field-debug-event-rate-limit": "Limit für berechnete Feld-Debug-Ereignisse bearbeiten",
       "edit-transport-tenant-msg-title": "Limit für Transport-Mieter-Nachrichten bearbeiten",
@@ -9221,4 +9220,4 @@
       "zh_TW": "chinesisch (Taiwan)"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index 14a000aae9..1e640b0b15 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -5681,9 +5681,9 @@
         "ws-limit-updates-per-session": "WS updates per session",
         "rate-limits": {
             "add-limit": "Add limit",
+            "and-also-less-than": "and also less than",
             "advanced-settings": "Advanced settings",
             "edit-limit": "Edit limit",
-            "but-less-than": "but less than",
             "calculated-field-debug-event-rate-limit": "Calculated field debug events",
             "edit-calculated-field-debug-event-rate-limit": "Edit calculated field debug events rate limits",
             "edit-transport-tenant-msg-title": "Edit transport tenant messages rate limits",
@@ -5723,6 +5723,7 @@
             "per-seconds": "Per seconds",
             "per-seconds-required": "Time rate is required.",
             "per-seconds-min": "Minimum value is 1.",
+            "per-seconds-duplicate": "Duplicate time rate. Each time interval must be unique.",
             "rate-limits": "Rate limits",
             "remove-limit": "Remove limit",
             "transport-tenant-msg": "Transport tenant messages",
diff --git a/ui-ngx/src/assets/locale/locale.constant-es_ES.json b/ui-ngx/src/assets/locale/locale.constant-es_ES.json
index bb6f70c2aa..fbb6855907 100644
--- a/ui-ngx/src/assets/locale/locale.constant-es_ES.json
+++ b/ui-ngx/src/assets/locale/locale.constant-es_ES.json
@@ -5640,7 +5640,6 @@
       "add-limit": "Agregar límite",
       "advanced-settings": "Configuraciones avanzadas",
       "edit-limit": "Editar límite",
-      "but-less-than": "pero menor que",
       "calculated-field-debug-event-rate-limit": "Eventos de depuración de campo calculado",
       "edit-calculated-field-debug-event-rate-limit": "Editar límites de eventos de depuración de campo calculado",
       "edit-transport-tenant-msg-title": "Editar límites de velocidad de mensajes de transporte del inquilino",
@@ -9221,4 +9220,4 @@
       "zh_TW": "中文 (台灣)"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/assets/locale/locale.constant-fr_FR.json b/ui-ngx/src/assets/locale/locale.constant-fr_FR.json
index 07739906bb..b3aad1a2b2 100644
--- a/ui-ngx/src/assets/locale/locale.constant-fr_FR.json
+++ b/ui-ngx/src/assets/locale/locale.constant-fr_FR.json
@@ -5640,7 +5640,6 @@
       "add-limit": "Ajouter une limite",
       "advanced-settings": "Paramètres avancés",
       "edit-limit": "Modifier la limite",
-      "but-less-than": "mais inférieur à",
       "calculated-field-debug-event-rate-limit": "Événements de débogage des champs calculés",
       "edit-calculated-field-debug-event-rate-limit": "Modifier la limite des événements de débogage de champ calculé",
       "edit-transport-tenant-msg-title": "Modifier les limites de messages de transport du locataire",
@@ -9221,4 +9220,4 @@
       "zh_TW": "中文 (台灣)"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/assets/locale/locale.constant-it_IT.json b/ui-ngx/src/assets/locale/locale.constant-it_IT.json
index f976a76052..b65ab36a01 100644
--- a/ui-ngx/src/assets/locale/locale.constant-it_IT.json
+++ b/ui-ngx/src/assets/locale/locale.constant-it_IT.json
@@ -5640,7 +5640,6 @@
       "add-limit": "Aggiungi limite",
       "advanced-settings": "Impostazioni avanzate",
       "edit-limit": "Modifica limite",
-      "but-less-than": "ma inferiore a",
       "calculated-field-debug-event-rate-limit": "Eventi di debug del campo calcolato",
       "edit-calculated-field-debug-event-rate-limit": "Modifica i limiti di eventi di debug del campo calcolato",
       "edit-transport-tenant-msg-title": "Modifica i limiti di messaggi di trasporto del tenant",
@@ -9221,4 +9220,4 @@
       "zh_TW": "中文 (台灣)"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/assets/locale/locale.constant-lt_LT.json b/ui-ngx/src/assets/locale/locale.constant-lt_LT.json
index d3cc6f6c47..935ae65eb4 100644
--- a/ui-ngx/src/assets/locale/locale.constant-lt_LT.json
+++ b/ui-ngx/src/assets/locale/locale.constant-lt_LT.json
@@ -5131,7 +5131,6 @@
             "add-limit": "Add limit",
             "advanced-settings": "Advanced settings",
             "edit-limit": "Edit limit",
-            "but-less-than": "but less than",
             "edit-transport-tenant-msg-title": "Edit transport tenant messages rate limits",
             "edit-transport-tenant-telemetry-msg-title": "Edit transport tenant telemetry messages rate limits",
             "edit-transport-tenant-telemetry-data-points-title": "Edit transport tenant telemetry data points rate limits",
diff --git a/ui-ngx/src/assets/locale/locale.constant-nl_BE.json b/ui-ngx/src/assets/locale/locale.constant-nl_BE.json
index f4951582b5..d644a927df 100644
--- a/ui-ngx/src/assets/locale/locale.constant-nl_BE.json
+++ b/ui-ngx/src/assets/locale/locale.constant-nl_BE.json
@@ -5164,7 +5164,6 @@
             "add-limit": "Limiet toevoegen",
             "advanced-settings": "Geavanceerde instellingen",
             "edit-limit": "Limiet bewerken",
-            "but-less-than": "maar minder dan",
             "edit-transport-tenant-msg-title": "Snelheidslimieten voor berichten van transporttenants bewerken",
             "edit-transport-tenant-telemetry-msg-title": "Snelheidslimieten voor telemetrie berichten van transporttenants bewerken",
             "edit-transport-tenant-telemetry-data-points-title": "Snelheidslimieten voor telemetrie gegevenspunten van transporttenants bewerken",
diff --git a/ui-ngx/src/assets/locale/locale.constant-pl_PL.json b/ui-ngx/src/assets/locale/locale.constant-pl_PL.json
index 80b65b83f9..6dd6ca467e 100644
--- a/ui-ngx/src/assets/locale/locale.constant-pl_PL.json
+++ b/ui-ngx/src/assets/locale/locale.constant-pl_PL.json
@@ -5148,7 +5148,6 @@
             "add-limit": "Dodaj limit",
             "advanced-settings": "Zaawansowane ustawienia",
             "edit-limit": "Edytuj limit",
-            "but-less-than": "ale mniej niż",
             "edit-transport-tenant-msg-title": "Edytuj limity szybkości wiadomości tenanta transportu",
             "edit-transport-tenant-telemetry-msg-title": "Edytuj limity szybkości komunikatów telemetrycznych Tenanta transportu",
             "edit-transport-tenant-telemetry-data-points-title": "Edytuj limity szybkości punktów danych telemetrycznych Tenanta transportu",
diff --git a/ui-ngx/src/assets/locale/locale.constant-zh_CN.json b/ui-ngx/src/assets/locale/locale.constant-zh_CN.json
index 770f5df355..024a836551 100644
--- a/ui-ngx/src/assets/locale/locale.constant-zh_CN.json
+++ b/ui-ngx/src/assets/locale/locale.constant-zh_CN.json
@@ -4675,7 +4675,6 @@
             "add-limit": "添加限制",
             "advanced-settings": "高级设置",
             "edit-limit": "编辑限制",
-            "but-less-than": "但小于",
             "edit-transport-tenant-msg-title": "编辑传输租户消息速率限制",
             "edit-transport-tenant-telemetry-msg-title": "编辑传输租户遥测消息速率限制",
             "edit-transport-tenant-telemetry-data-points-title": "编辑传输租户遥测数据点速率限制",
diff --git a/ui-ngx/src/assets/locale/locale.constant-zh_TW.json b/ui-ngx/src/assets/locale/locale.constant-zh_TW.json
index 9e2246b83d..7b0575f739 100644
--- a/ui-ngx/src/assets/locale/locale.constant-zh_TW.json
+++ b/ui-ngx/src/assets/locale/locale.constant-zh_TW.json
@@ -3048,7 +3048,6 @@
             "add-limit": "增加限制",
             "advanced-settings": "進階設定",
             "edit-limit": "編輯限制",
-            "but-less-than": "但小於",
             "edit-transport-tenant-msg-title": "編輯傳輸租戶訊息速率限制",
             "edit-transport-tenant-telemetry-msg-title": "編輯傳輸租戶遙測訊息速率限制",
             "edit-transport-tenant-telemetry-data-points-title": "編輯傳輸租戶遙測資料端速率限制",