Siemens 3RT2027-1AP00 Contactor

1. Core Parameters Overview

Siemens 3RT2027-1AP00 is an innovative 3-pole AC contactor from the SIRIUS 3RT2 series, designed for motor control and power switching applications.

2. Detailed Technical Specifications

2.1 Main Circuit Parameters

تصنيف الجهد العزل (واجهة المستخدم): 690الخامس و

تصنيف الجهد التشغيلي (إي): 400الخامس و (ايه سي-3), up to 690V AC

الدافع المقدر لتحمل الجهد (امب): 8كيلو فولت

Rated Operational Current:

ايه سي-1 (حمل مقاوم): 40أ (400V), 32أ (690V)

ايه سي-3 (حمل المحرك): 32أ (400V), 21أ (690V)

AC-3e: 32أ (400V)

Rated Making Capacity (ايه سي-3): 320أ (400V), 5 العمليات

Rated Breaking Capacity (ايه سي-3): 160أ (400V), 50 العمليات

2.2 Control Circuit Parameters

Rated Coil Voltage (جامعة كاليفورنيا): 230الخامس و, 50هرتز

Rated Coil Power: تقريبا. 70فرجينيا (inrush), تقريبا. 8فرجينيا (holding)

Coil Pick-up Time: ≤60ms

Coil Drop-out Time: ≤40ms

Control Circuit Terminals: أ1, A2 (top or bottom connection)

2.3 Physical & Mounting Parameters

أبعاد (W×D×H): 45mm×85mm×97mm

وزن: تقريبا. 420ز (0.928lb)

Mounting Position: Vertical (معيار), ±15° tilt permitted

سعة الأسلاك: الدائرة الرئيسية (10–35mm² copper cable), دائرة التحكم (0.5–2.5mm² copper cable)

3. سمات & Benefits
4. High Efficiency & Energy Saving

Innovative electromagnetic design with low holding power, reducing energy consumption by approx. 30% compared to conventional contactors.

2. Safe & Reliable

Built-in surge suppression circuit to reduce EMI

Silver-cadmium oxide contacts for excellent arc resistance and long service life

يتوافق مع اللجنة الانتخابية المستقلة 60947-4-1 and EN 60947-4-1 المعايير

3. Flexible Extension

Supports add-on modules: اتصالات مساعدة, surge suppressors, mechanical interlocks, إلخ.

4. Easy Maintenance

Transparent housing for visual status check

Contact wear indicator

Fast-connection design for reduced installation time

4. Applications
5. التحكم في المحركات

Direct starting, stopping and reversing of three-phase asynchronous motors up to 15kW.

2. تبديل الطاقة

Control of non-motor loads such as resistance furnaces, heaters, capacitor banks.

3. Automation Systems

Actuator in PLC control systems for remote control and logic switching.

4. Industrial Fields

المشجعين, مضخات, الضواغط

الناقلون, mixers and machinery

HVAC systems in building automation

5. Replacement & Compatible Models

5.1 Siemens Same-Series Replacements

3RT2027-1AP00 (50هرتز) ↔ 3RT2027-1AP01 (60هرتز) – same electrical performance, only frequency differs

3RT2027-1BP40 – 400V AC, 50Hz coil

3RT2027-1AP02 – 230V AC, 50/60هرتز (wide frequency)

5.2 Cross-Brand Equivalents (Functionally Compatible)

5.3 Recommended Accessories

Auxiliary Contact Blocks: 3RT2916-1BB00 (2لا), 3RT2916-1BC00 (2نورث كارولاينا)

Surge Suppressor: 3RT2926-1BB00 (for AC coils)

التعشيق الميكانيكي: 3RT2936-1AA00 (for reversing applications)

Overload Relays: 3RU61 series (e.g. 3RU6126-4CB00, 32A setting range)

6. Selection & ملاحظات الاستبدال
7. Load Matching

Verify load type (AC-1/AC-3), current and power do not exceed contactor ratings.

2. الجهد لفائف

Confirm control circuit voltage and frequency to avoid coil burnout (230الخامس و, 50Hz only).

3. جهات الاتصال المساعدة

Ensure 1NO+1NC meets control logic; add extension modules if needed.

4. Installation Space

S0 frame (45mm width) for compact cabinets; maintain ≥5mm clearance to adjacent devices.

5. Legacy Replacement

Direct replacement for 3RT1027 series, mounting-compatible

For non-Siemens replacements, verify mounting holes and terminal layout

6. الظروف البيئية

Derate at temperatures < -25°C or > +60°C (تقريبا. 10% per 10°C).

7. Ordering & Lifecycle Information

Product Status: Active (PLM: PM300), available for order

Packing: 1 unit/box, including installation manual

Country of Origin: Germany

الشهادات: م, أول, وكالة الفضاء الكندية, IEC and other international approvals

Complete Guide to Replacement Models for Siemens 3RT2027-1AP00 Contactor

1. Core Parameters Recap (Replacement Base)

3RT2027-1AP00 – Siemens SIRIUS 3RT2 series 3-pole AC contactor:

التصنيف الحالي (ايه سي-3, 400V): 32أ, القوة المقدرة: 15كيلوواط

Coil: 230الخامس و, 50هرتز

Contacts: 3NO main + 1NO+1NC auxiliary

Frame: S0, Terminals: screw, Mounting: 35مم DIN السكك الحديدية / panel

2. Siemens Same-Series Replacements

2.1 Identical Rating, Different Frequency

2.2 Different Coil Voltages (Same Size & Contacts)

2.3 Upgraded Series

3RT7027-1AN20: New 3RT7 series, 32أ, 230فولت تيار متردد 50/60 هرتز, fully mounting-compatible

3RT2027-1AP00-1AA0: Integrated surge suppressor, fewer external parts

3. Cross-Brand Equivalent Replacements

3.1 Direct Equivalents

3.2 High-Performance Upgrades

4. Special Application Replacements

4.1 DC Coil Replacements

4.2 لا / Extra Auxiliary Contacts

5. Replacement Guidelines (أمان & Reliability)

5.1 Priority Matching Parameters

1. التصنيف الحالي & load class: ايه سي-1 / ايه سي-3, must be ≥ load current
2. Coil voltage & تكرار: Must match control supply (230V AC 50Hz only)
3. Contact configuration: 3NO main required; 1NO+1NC auxiliary as needed
4. Mounting & wiring: S0 (45مم), screw terminals, DIN/panel space

5.2 Cross-Brand Checks

أبعاد: Width 45mm, ارتفاع, عمق

Terminal positions and wiring layout

Clearances and creepage distances per IEC 60947-4-1

Auxiliary contact rating (typically ≤5A)

5.3 Environment & Derating

Derate above 60°C or below -25°C (≈10% per 10°C)

Derate at high altitude: 0.9 (2000–3000m), 0.8 (3000–4000m)

6. Recommended Replacement Summary
7. Best Siemens replacement: 3RT2027-1AL20 (wide-frequency, global, direct fit)
8. Top cross-brand choices: Schneider LC1D32M7C or ABB A145-30-11 (mature, widely available)
9. DC control replacement: 3RT2027-2BB40 (original Siemens, reliable)