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Siemens IC 10 · 2017
Contactor Assemblies for Star-Delta (Wye-Delta) Starting
SIRIUS 3RA24 contactor assemblies for star-delta (wye-delta) starting, up to 90 kW
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概述
The 3RA24 contactor assemblies for star-delta (wye-delta)
开始in sizes S00 to S3 can be ordered as follows:
•
Fully wired and tested, with electrical and mechanical inter-
锁;
see page 3/179 onwards
•
For all individual parts for customer assembly,
see from page 3/75 onwards
.
The 3RA24 contactor assemblies for star-delta (wye-delta)
起始有螺钉或弹簧型终端，适用于
拧紧并捕捉到35标准安装轨道上。
A base plate is also available for the size S2 and S3 assemblies.
逆转50毫秒的死区间已经集成在其中
3RA28 Star-Delta（WYE-DELTA）的功能模块启动。
With the fully wired and tested 3RA24 contactor assemblies for
Star-Delta（Wye-Delta）开始，包括在内的辅助触点
the basic units are unassigned.
The 3RA24 contactor assemblies for star-delta (wye-delta)
开始are designed for standard applications.
笔记：
Star-Delta（Wye-Delta）开始的联系人组件
special applications such as very heavy starting
1）
或明星 - 三角洲
（WYE-DELTA）必须定制特殊电机的开始。
Help with designing such special applications is available from
our Technical Assistance,
电话：+49（911）895-5900
电子邮件:
technical-assistance@siemens.com
1）
有效支持技术援助，您必须提供
following details:
- Rated motor voltage
- Rated motor current
- Service factor, operating values
- 电机启动电流系数
- Starting time
- 环境温度。
Surge suppression
浪涌抑制（压敏电阻）包括在3RA28功能中
Star-Delta（Wye-Delta）的模块开始。
Motor protection
3RU2过载继电器
(see from page 7/84 onwards)
or
3RB3超载继电器
(see from page 7/97 onwards)
for contactor mounting or stand-alone installation,
Simocode Pro 3UF7电机管理和控制设备
(from page 10/14 onwards)
or 3RN thermistor motor protection
evaluation units
(from page 10/164 onwards)
可用于
motor protection.
过载继电器可安装在线接触器上
或单独安装。它必须设定为额定电机的0.58倍
当前的。
SIRIUS 3RA28 function module for star-delta (wye-delta)
开始
3RA2816-0EW20 Star-Delta（Wye-Delta）功能模块
(see page 3/105)
replaces the complete wiring in the control
circuit and can be used in the voltage range from 24 to
240.V AC/DC. It is snapped onto the front of the contactor as-
sembly for star-delta (wye-delta) starting size S00, S0, S2 or S3.
一个功能模块包括完整的模块套件：
•
Basic module with integrated control logic and time setting
•
Two coupling modules with corresponding connecting cables
因此供应范围包括一个完整的模块套件
one contactor assembly for star-delta (wye-delta) starting in size
无论连接方法如何，S00，S0，S2或S3。
控制电路的数据：
•
Wide voltage range 24 to 240 V AC/DC
•
时间设置范围为0.5至60秒（3个可选设置）
•
Dead interval of 50 ms, non-adjustable
更多的信息
Home page,
see www.siemens.com/sirius
工业商城，
see www.siemens.com/product?3RA24_3RT
Conversion tool, e.g. from 3RT10 to 3RT20,
see
www.siemens.com/sirius/conversion-tool
3RT2接触器的在线配置器，
see
www.siemens.com/sirius/configurators.
©Siemens AG 2016