Siemens 3TF48, 3TF49 User Manual

s

交流接触器 3TF48，3TF49

Q/SMS 003，GB14048.4，DIN VDE 0660，IEC 60947-4-1

A001253

使用说明书 编号： 4NEB 524 4680-10 f4 中 文

! 注 意

危险电压会引起触电和燃烧。
调整、维修前请先切断电源。

! 防止触及限定保护的带电部分

保护等级 IP 00 按 IEC 60529
触指安全性符合 DIN VDE 0106 第100部分。调整、维修应由专业

人员才能担任，并严格按照使用说明书。

经济型直流操作接触器使用说明书见4NEB 526 4590-10。

安装

外形尺寸见图Ⅰ（单位：mm）。
接触器用2 只 M5 螺钉安装在平面上，螺钉的最大紧固力矩是

6.2Nm。用螺钉安装时，一定要用平垫圈和弹簧垫圈。在安装时要
防止外来颗粒，例如防止细铁屑进入里面。如果接触器暴露于灰
砂、粉尘及腐蚀性环境中，应加装防护罩。
允许的安装位置见图Ⅱ。

接线

紧固所有的接线螺钉，即使不用的螺钉也得紧固。

允许的接触器主电路导线截面积

具有接线盒的

按照 DIN EN50027
见图Ⅲa

具有套筒端的多股导线1) (mm2)
没有套筒端的多股导线1) (mm2)
实心导线，绞合线 (mm
AWG制导线（绞合线）

剥线长度 18~20 mm /

紧固力矩 4~6 Nm / 36~52 lb.in

1）

未绞合导线末端必须被捻合或装上 18 mm长的金属箍，按标准
DIN 46228 中的第一部分。
在安装接线盒前（见图Ⅲ b），必须移开灭弧室（见图Ⅶ/1,2,3）

不带接线盒的

见图Ⅲc
一或二根导线能被连接

具有接线片的细绞合线
具有接线片的细绞合线
接线棒 12×3
AWG 制导线（绞合线和实心线） 7~1/0
接线螺钉 M6×20
紧固力矩 4~6 Nm / 36~52 lb.in

2）

将罩3TX7 466-0A用于超过尺寸的电缆接线片，安装情况见图Ⅲ
d/e

2

)

3TF48/3TF49

2）

10~35mm2

2）

10~50mm2

6~35 2.5~35

10~35 2.5~35

6~50 2.5~50

10~1/0 18 ~1/0

3

in

4

最大 2 ×25
最大 2 ×25
最大 2 ×35
最大 2 ×1/0

允许的接触器辅助电路导线截面积

实心导线 2×0.5~1；2×1~2.5；1×4mm2
具有套筒端的多股导线 2×0.5~1；2×0.75~2.5 mm
柱状接线头根据DIN 46231 2×1~1.5 mm2
推进式插座B2.8 2×0.3~1.5 mm
AWG制导线（绞合线和实心线） 2×18~12
剥线长度 10mm / 0.4in
紧固力矩 0.8~1.4Nm / 7~12lb.in
辅助接线端子 3TX7 500-0A（附件）的安装见图Ⅲ a。
接线端子的电路图及位置见图Ⅳ。
图Ⅳa 2NO+2NC 图Ⅳ b 4NO+4NC
仅采用75℃铜线

2

2

操作

遵守控制电压（见线圈标牌）
接触器操作状态显示位置见图Ⅴ。

** 备注：按照IEC 60947/ VDE 0660 ，配合类型表示：
“配合类型1”：短路电流可引起接触器损坏，如有必要接触器必须更换。
“配合类型2”：允许触头有可以容易地分开的熔焊。

短路后必须检查主触头和灭弧室。

维修保养

下列零部件可以更换：主触头、灭弧室、线圈、辅助触头组。
订货号见产品样本。
只有用本来的备用件才能保证接触器的安全可靠。

危险电压会引起触电和燃烧。
调整、维修前请先切断电源。

清洁

用吸尘器除尘。

辅助触头组

更换情况见图Ⅵ/1，2，3；扩展情况见图Ⅵ/4，5，6。

灭弧室和主触头

移开灭弧室（图Ⅶ/1，2，3），检查主触头（图Ⅶ/4）。如果有必要应
用螺丝刀轻轻地分开烧焊的触头。氧化的或不平的触头仍有用，不要修
光或擦拭它们。如果触头表面被电蚀到露出基体材料，则必须更换触
头。
触头更换情况见图Ⅶ/5，6，7。
没有必要拆卸主触头，如有必要要检查和更换灭弧室。

在移开灭弧室时，接触器被机械联锁，在此情况下线圈不允许激励。
线圈

线圈的更换见图Ⅷ。
确保线圈电极表面清洁，不要用润滑油或尖物清洁线圈。

技术数据

重量 约 2.3 kg
允许的环境温度

工作时 -25℃~+55℃
贮存时 -50

主回路

额定绝缘电压Ui AC 1000V
额定功率AC-3

在 - 230V

- 240V kW 24 28

- 400V kW 37 45

- 415V kW 42 49

- 500V kW 50 59

- 690V kW 67 67

- 1000V kW 39 39

额定工作电流 3TF48 3TF49
Ie/AC-1（55℃）至690V A 100 100
Ie/AC-3
Ie/AC-3

短路保护
保护等级按DIN VDE 0660,

102A部分/IEC 60947-4-1 **

- 配合类型1 A 250 250

- 配合类型2 A 160 160

- 不熔焊I

- 不熔焊I

至500V A 75 85

在690V A 75 75

＜100×Ie A 100 100

K

≥100×Ie A 125 125

K

辅助回路

额定工作电流Ie/AC-15/AC-11 在AC 230V时 5.6A
短路保护：

- 熔断器 NEOZED 和DIAZED gL(gG),16A

- 小型断路器 C特性 10A

其他数据和附件见产品样本

B特性 16A

℃~+80℃

3TF48 3TF49

kW 22 26

XK06-201 0025

熔断器 gL(gG)

3TF48 3TF49

苏州西门子电器有限公司

1

s

Contactor 3TF48，3TF49

Q/SMS 003，GB14048.4，DIN VDE 0660，IEC 60947-4-1

XK06-201 0025

English

Instructions

! WARNING

Hazardous voltage

can cause electrical shock and burns.

Disconnect power before proceeding

with any work on this equipment.

! Limited protection against contact with live parts

Degree of protection IP 00 to IEC 60529.
Safe from finger touch to DIN VDE 0106, Part 100.

Commissioning and maintenance by qualified personnel only.

Follow the operating instructions.
For DC operation (DC economy connection) see operating instructions 4NEB 526
4590-10

Installation

For dimension drawings see Fig. I (dimensions in mm ).
Fix on a plain surface with two M5 screws –max. tightening torque 6.2 Nm.
Always use plain washers and spring washers.
Cover the contactors during installation if foreign particles, such as swarf, can fall
onto them. Install contactors in a housing if they are exposed to dirt, dust or
aggressive atmospheres.
For permissible mounting positions see Fig. II.

Connection

Tighten all terminal screws even if not used.

Permissible conductor cross-sections for main terminals:
With box terminal

According to DIN EN 50 027

-- see Fig. III a

Finely stranded with end
sleeve (mm
Finely stranded without end
sleeve (mm
Solid, stranded (mm2 )
AWG wires, stranded

Stripped length 18 to 20 mm /
Tightening torque 4 to 6 Nm / 36 to 52 lb.in

1)

Part 1 must be used.
Crimping tools PZ16 and PZ35 from Weidmuller are recommanded for the end sleeves.
Before mounting the box terminals (see Fig. III b ) ,the arc chute must be removed (see

Fig. VII/ 1,2,3 ).
Without box terminal

-see Fig.III c

1or 2 conductors can be connected

Finely stranded (mm2 ) with terminal pin
Stranded (mm2 ) with terminal pin 2) 10 to 50
Terminal bars 12×3
AWG wires, stranded and solid 7 to 1/0
Terminal screws M6×20
Tightening torque 4 to 6 Nm / 36 to 52 lb.in

2)

Permissible conductor cross-sections for auxiliary terminals:

Solid 2×0.5 to 1; 2×1 to 2.5; 1×4 mm
Finely stranded with end sleeve 2×0.5 to 1; 2×0.75 to 2.5 mm
Terminal pin in accord. with DIN46231 2×1 to 1.5 mm2
Push-on receptacle B2.8 2×0.3 to 1.5 mm2
AWG wires, stranded and solid 2×18 to 12
Stripped length 10mm / 0.4 in
Tightening torque 0.8 to 1.4Nm / 7 to 12 lb.in
Installation of auxiliary conductor terminal 3TX7 500-0A (accessory) see Fig. III a.
For circuit diagram and position of connection terminals see Fig. IV.
Fig. IV a 2NO+2NC; Fig. IV b 4NO+4NC

Use 75

* *Footnote: According to IEC 60947 / VDE 0660,the types of protection mean:

“Assignment type 1 ”: Short circuits can cause damage to the contactors making replacement of the equipment necessary.
“Assignment type 2 ”: Easily separable contact welding but no other damage.

2

) 1)

2

) 1)

The ends of non-stranded cables must be twisted or 18mm long ferrules to DIN 46228

Use cover 3TX7 466-0A for oversized cable lugs installation see Fig. III d/e.

℃ copper wire only.

6 to 35 2.5 to 35

10 to 35 2.5 to 35

6 to 50 2.5 to 50

10 to 1/0 18 to 1/0

3TF48/3TF49

3

4

2 )

10 to 35

in

max. 2×25

max. 2×25

max. 2×35
max. 2×1/0

2

2

Order No.： 4NEB 524 4680-10 f4

Operation

Observe operating voltage ( see rating plate of magnet coil ).
The operating state of the contactor is shown at the position indicator; see Fig. V.
After a short circuit the main contacts and the arc chute must be checked.

Maintenance

The following components can be replaced: main contacts, arc chute, magnet coil,
auxiliary contact blocks. For Order No. see Catalog.
Only use of original spare parts ensures the operational safety of the contactors.

Cleaning

Remove dust by suction.

Auxiliary contact block
For replacement see Fig. VI /1,2,3; for extension see Fig. VI /4,5,6.
Arc chute and main contacts

Remove arc chute (Fig. VII/1,2,3). Check main contacts (Fig. VII/4). If necessary
separate slightly welded contacts with a screwdriver.
Dark or tough contacts can still function. Do not refinish or grease them. If the contact
facings are eroded so that the carrier material becomes visible (Fig.VII/4a), all contacts
must be replaced.
For replacement of contacts see Fig.VII/5,6,7. It is not necessary to disconnect the main
conductors. Check the arc chute and replace it if necessary.

With the arc chute removed, the contactor is mechanically interlocked. Coil
excitation is not permitted under these conditions.
Magnet coil

For coil replacement see Fig. VIII.
Ensure that the pole faces of the magnet coil are clean. Do not use grease solvents or
sharp objects for cleaning.

Technical Data

Weight approx. 2.3 kg
Permissible ambient temperature

- Operation -25

- Storage -50

Main circuit

Rated insulation voltage Ui AC 1000V
Rated output AC-3 3TF48 3TF49

at

-230V kW 22 26

Rated operating current 3TF48 3TF49
Ie/AC-1( 55
Ie/AC-3 to 500V A 75 85

Ie/AC-3 at 690V A 75 75

Short-circuit protection
Degree of protection to DIN VDE 0660, Part
102A/IEC 60947-4-1 **

-Assignment type 1 A 250 250

-Assignment type 2 A 160 160

-non-welding I

-non-welding

Auxiliary circuit

Rated operating current Ie/AC-15/AC-11 5.6A at AC 230V
Short-circuit protection:

- Fuse-links NEOZED and DIAZED gL (gG), 16A

- Circuit-breaker C,10A;B,16A

For further data and accessories see Catalog

2

A001253

Hazardous voltage can cause electrical shock and burns.

Disconnect power before proceeding with any work on this equipment.

℃ to +55 ℃

℃ to +80 ℃

-240V kW 24 28

-400V kW 37 45

-415V kW 42 49

-500V kW 50 59

-690V kW 67 67

-1000V kW 39 39

℃ ) to 690V A 100 100

Fuse-links, gL(gG)
3TF48 3TF49

K＜100×Ie A 100 100

IK≥100×Ie A 125 125

Siemens Electrical Apparatus Ltd., Suzhou