siemens
ريلاي الحمل الحراري الزائد سيمنز SIRIUS 3RU
رقم الموديل: 3RU2126-4AB0
Current Range: 0.1–100 A (adjustable)Trip Class: Class 10A (IEC 60947-4-1)Phase Failure: Detected within 3–10 sAmbient Compensation: Bimetallic self-compensating
متوفر — يُشحن داخل المملكة العربية السعودية
نرد خلال 4 ساعات عمل · الأسعار بالريال السعودي · توصيل لجميع مدن المملكة
منتجات أصلية 100%
رد خلال 4 ساعات
توصيل لجميع أنحاء المملكة
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ريلاي الحمل الحراري الزائد سيمنز SIRIUS 3RU — نظرة عامة
ريلاي الحمل الحراري سيمنز SIRIUS 3RU يوفر حماية المحرك من الحمل الزائد وفشل الطور وعدم تماثل الأطوار مع تعويض درجة الحرارة المحيطة. يتصل مباشرة بكونتاكتور 3RT دون أسلاك إضافية.
يغطي نطاقاً من 0.1 إلى 100 أمبير مع خيار إعادة الضبط اليدوي أو التلقائي. توفر راز الشرق الأوسط 3RU من المخزون المحلي لجميع قياسات التيار.
المواصفات الفنية
المواصفات الكاملة لـ 3RU2126-4AB0
- Current Range
- 0.1–100 A (adjustable)
- Trip Class
- Class 10A (IEC 60947-4-1)
- Phase Failure
- Detected within 3–10 s
- Ambient Compensation
- Bimetallic self-compensating
- Reset
- Manual / automatic (field selectable)
- Mounting
- Direct clip-on to 3RT contactor
- Auxiliary Contacts
- 1 NC trip + 1 NO signal
- Standard
- IEC 60947-4-1
المميزات والفوائد
- Direct clip-on mounting to corresponding 3RT contactor without inter-device wiring eliminates separate terminal connections, reducing MCC assembly time by up to 25% on large motor starter projects.
- Bimetallic ambient temperature self-compensation automatically adjusts the thermal trip threshold as panel temperature rises, protecting motors from chronic overloading in Saudi Arabia's outdoor MCCs where summer temperatures exceed 50°C.
- Phase failure detection trips within 3–10 seconds of single-phasing, preventing motor winding damage before the thermal model accumulates sufficient heat — critical protection against one of the most common motor burnout causes in the Kingdom.
- Manual and automatic reset modes are field-selectable on the installed relay without tools, allowing operators to choose lockout-after-trip for safety-critical pumps or automatic recovery for unattended remote pump stations.
- Adjustable current setting dial covers each relay's full current range continuously, allowing precise setting to the motor's nameplate full-load current without stocking multiple fixed-rating relays for each motor size.
- 1NC trip contact and 1NO signal contact are standard on all 3RU relays, providing both circuit break and alarm signal outputs without additional auxiliary contact blocks.
- Test button on the relay face allows functional testing of the trip and reset circuit during commissioning and maintenance without running the motor to thermal trip point, satisfying ARAMCO and SABIC maintenance procedure requirements.
التطبيقات الصناعية
- SIRIUS motor starter assemblies in ARAMCO-approved MCCs at processing and utility facilities in the Eastern Province, where 3RU clip-on mounting to 3RT contactors is the standard thermal overload protection method in SEC-approved panel builder assemblies.
- Pump motor protection in NWC water booster stations, where the automatic reset option allows unattended pump restoration after a thermal trip caused by momentary supply voltage reduction during peak demand periods.
- Fan and HVAC motor protection in commercial buildings and industrial facilities, where ambient temperature compensation prevents nuisance tripping in hot plant rooms while maintaining protection sensitivity for genuine overload conditions.
- Conveyor belt and material handling motor protection at cement and aggregate processing facilities, where phase failure detection protects expensive high-torque motors from the single-phasing that frequently follows fuse failure in high-dust environments.
- Process pump motor protection in SABIC petrochemical plant process areas, where manual reset enforces operator attendance before restart — a safety procedure required by the facility's motor management protocol for critical process pumps.
- Compressor motor protection in industrial utility systems across the Kingdom, where the 3RU's Class 10A trip class accommodates the extended high-current starting characteristic of direct-on-line compressor starting without nuisance tripping.
- Replacement overload relay installations in existing SIRIUS starter panels across Saudi Arabia's ageing industrial infrastructure, where the 3RU's clip-on interface allows direct like-for-like replacement without panel rewiring.
مورد معتمد في المملكة العربية السعودية
احصل على عرض سعر لـ ريلاي الحمل الحراري الزائد سيمنز SIRIUS 3RU
نرد خلال 4 ساعات. أرسل رقم الموديل 3RU2126-4AB0 للحصول على سعر تنافسي مع التسليم في أنحاء المملكة العربية السعودية والخليج.
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