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

Номинальное напряжение изоляции (Уи): 690В и

Номинальное рабочее напряжение (Уэ): 400В и (АС-3), up to 690V AC

Номинальное импульсное выдерживаемое напряжение (Умп): 8кВ

Rated Operational Current:

АС-1 (резистивная нагрузка): 40А (400В), 32А (690В)

АС-3 (motor load): 32А (400В), 21А (690В)

AC-3e: 32А (400В)

Rated Making Capacity (АС-3): 320А (400В), 5 операции

Rated Breaking Capacity (АС-3): 160А (400В), 50 операции

2.2 Control Circuit Parameters

Rated Coil Voltage (УК): 230В и, 50Гц

Rated Coil Power: Приблизительно. 70Вирджиния (inrush), приблизительно. 8Вирджиния (проведение)

Coil Pick-up Time: ≤60ms

Coil Drop-out Time: ≤40ms

Control Circuit Terminals: A1, A2 (top or bottom connection)

2.3 Physical & Mounting Parameters

Размеры (Ш×Г×В): 45mm×85mm×97mm

Weight: Приблизительно. 420g (0.928lb)

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

Wiring Capacity: Главная цепь (10–35mm² copper cable), Схема управления (0.5–2.5mm² copper cable)

3. Функции & 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

Соответствует МЭК 60947-4-1 and EN 60947-4-1 стандарты

3. Flexible Extension

Supports add-on modules: вспомогательные контакты, surge suppressors, mechanical interlocks, и т. д..

4. Простое обслуживание

Transparent housing for visual status check

Contact wear indicator

Fast-connection design for reduced installation time

4. Applications
5. Управление двигателем

Прямой запуск, stopping and reversing of three-phase asynchronous motors up to 15kW.

2. Power Switching

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

Fans, насосы, компрессоры

Конвейеры, mixers and machinery

HVAC systems in building automation

5. Замена & Совместимые модели

5.1 Siemens Same-Series Replacements

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

3RT2027-1BP40 – 400V AC, 50Hz coil

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

5.2 Cross-Brand Equivalents (Функционально совместим)

5.3 Recommended Accessories

Auxiliary Contact Blocks: 3RT2916-1BB00 (2НЕТ), 3RT2916-1BC00 (2Северная Каролина)

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

Механическая блокировка: 3RT2936-1AA00 (for reversing applications)

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

6. Selection & Replacement Notes
7. Согласование нагрузки

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

2. Напряжение катушки

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

3. Вспомогательные контакты

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

4. Место для установки

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. Условия окружающей среды

Derate at temperatures < -25°C or > +60°С (приблизительно. 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

Сертификаты: CE, UL, CSA, 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:

Номинальный ток (АС-3, 400В): 32А, Rated Power: 15кВт

Катушка: 230В и, 50Гц

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

Рамка: S0, Терминалы: screw, Монтаж: 35мм DIN-рейка / panel

2. Siemens Same-Series Replacements

2.1 Identical Rating, Different Frequency

2.2 Different Coil Voltages (Same Size & Контакты)

2.3 Upgraded Series

3RT7027-1AN20: New 3RT7 series, 32А, 230В переменного тока 50/60 Гц, 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 No / Extra Auxiliary Contacts

5. Replacement Guidelines (Безопасность & Надежность)

5.1 Priority Matching Parameters

1. Номинальный ток & load class: АС-1 / АС-3, must be ≥ load current
2. Coil voltage & frequency: Must match control supply (230V AC 50Hz only)
3. Конфигурация контактов: 3NO main required; 1NO+1NC auxiliary as needed
4. Монтаж & wiring: S0 (45мм), screw terminals, DIN/panel space

5.2 Cross-Brand Checks

Размеры: Width 45mm, высота, глубина

Terminal positions and wiring layout

Clearances and creepage distances per IEC 60947-4-1

Auxiliary contact rating (typically ≤5A)

5.3 Среда & 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)