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RDA2 Series (Pushbutton) Featured Image

RDA2 Series (Pushbutton)

RDA2 push button switches are applicable for controlling circuits with AC 50/60Hz, a rated working voltage of 380V, or a DC rated working voltage of 220V. They are used to control contactors, relays, electromagnetic switches, or convert working signals.

For push buttons equipped with signal lamps, the signal lamp is installed at the neck of the button. The button head also functions as the lampshade for the signal lamp, and different colors are used to distinguish signals.

This product complies with the IEC60947-5-1 standard.


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  • RDA2 Series (Pushbutton)
  • RDA2 Series (Pushbutton)
  • RDA2 Series (Pushbutton)
  • RDA2 Series (Pushbutton)
  • RDA2 Series (Pushbutton)

Product Detail

Selection Guide

RDA2 B A 2 1 2
Model Material Classification Derived Varieties Button Color Voltage with Lamp Contact Combination
Push Button Switch B: Metal
E: Plastic		 A: Flat Button
AZ: Flat Button with Self-locking
W3: Flat Button with Lamp
W3Z: Flat Button with Lamp and Self-locking......See Table 1		 1. White
2. Black
3. Green
4. Red
5. Yellow
6. Blue		 Voltage without Lamp: Empty
1:AC/DC6V    2:AC/DC12V
3:AC/DC24V   4:AC/DC36V
5:AC/DC48V   6:AC/DC110V
7:DC220V     8:AC220V
9:AC380V		 1: 1 NO 2:1 NC
3: 2 NO 4:2 NC
5: 1 NO+1 NC
101:1 NO Contact Group
102:1 NC Contact GroupSee Table 2 for Details
Derived Varieties(Table 1) Meaning Derived
Varieties		 Meaning Derived
Varieties		 Meaning
A Flat Button J2 Long-handle Knob with2-position Locking Y42 Key Button with2-position Reset (Middle pull-out)
AZ Flat Button with Self-locking J3 Long-handle Knob with3-position Locking Y52 Key Button with3-position Reset (Middle pull-out)
W3 Flat Button with Lamp J4 Long-handle Knob with2-position Reset Y63 Key Button with3-position Left Reset (Middle pull-out)
W3Z Flat Button with Lamp and Self-locking J5 Long-handle Knob with3-position Reset GA High-head Flat Button
D2 Knob with 2-position Locking J6 Long-handle Knob with2-position Left Reset C ∅ 40 Mushroom-head Self-reset Button
D3 Knob with 3-position Locking J7 Long-handle Knob with3-position Right T ∅ 40 Mushroom-head Self-locking Button
D4 Knob with 3-position Reset J8 Long-handle Knob with3-position Left Reset R ∅ 60 Mushroom-head Self-reset Button
D5 Knob with 3-position Reset Y21 Key Button with 2-position Locking (Left-Right Pull-out) X ∅ 60 Mushroom-head Self-locking Button
D6 Knob with 2-position Left Reset Y22 Key Button with2-position Locking (Middle Pull-out) S5 ∅ 40 Emergency Stop Button
D7 Knob with 3-position Right Reset Y34 Key Button with 2-position Locking (Left-Right Middle Pull-out) - -
D8 Knob with 3-position Left Reset Y35 Key Button with3-position Locking (Middle Pull-out) - -

Basic Contact Selection Table

Basic Contact Selection(Table 2) 1NO 1NC 2NO 2NC 1NO+1NC 1NO Contact
Group		 1NC Contact
Group
Order Selection Code 1 2 3 4 5 101 102

Special Contact Selection Table

Special Contact Selection Order Selection Code Selection Rule Explanation
3NO 3+101 2NO+1NO Contact Group
3NC 4+102 2NO+1NC Contact Group
1NO+2NC 4+101 or 5+102 2NC+1NC Contact Group or 1NO1NC+1NC Contact Group
1NO+3NC 4+102+101 or 5+102+102 2NC+1NC Contact Group +1NO Contact Group or 1NO1NC+1NC Contact Group + 1NC Contact Group
2NO+1NC 3+102 or 5+101 2NO+1NC Contact Group or 1NO1NC+1NO Contact Group
2NO+2NC 3+102+102 or 5+101+102 2NO+1NC Contact Group+1NC Contact Groupor
1NO1NC+1NO Contact Group+1NC Contact Group etc.
2NO+3NC 3+102+102+102 or 5+101+102+102 2NO+1NC Contact Group +1NC Contact Group +1NC Contact Group or 1NO1NC +1NO Contact Group+1NC Contact Group+1NC Contact Group
3NO+1NC 3+101+102 or 5+101+101 2NO+1NO Contact Group +1NC Contact Group or 1NO1NC+1NO Contact Group+1NO Contact Group etc.
3NO+2NC 3+101+102+102 or 5+101+101+102 2NO+1NC Contact Group+1NC Contact Group+1NC Contact Group or 1NO1NC+1NO Contact Group+1NO Contact Group+1NC Contact Group etc.
3NO+3NC 3+101+102+102+102 or 5+101+101+102+102 2NO+1NO Contact Group+1NC Contact Group+1NC Contact Group or 1NO1NC+1NO Contact Group+ 1NC Contact Group+1NC Contact Group+1NC Contact Group etc.

Flat Button Selection Table

RDA2 B A 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 A: Flat Button 1. White
2. Black
3. Green
4. Red
5. Yellow
6. Blue		 1: 1 NO
2: 1 NC
3: 2 NO
4: 2 NC
5: 1 NO1NC
101:1 NO Contact Group
102:1 NC Contact GroupSpecial models see Page 184

Outline Drawings and Dimensions

RDA2

Flat Button with Self-Lock

RDA2 B A 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button
Switch		 B: Metal
E: Plastic		 AZ: Flat
Button with
Self-locking		 1. White
2. Black
3. Green
4. Red
5. Yellow
6. Blue		 1: 1 NO
2: 1 NC
3: 2 NO
4: 2 NC
5: 1 NO1NC
101:1 NO Contact Group
102:1 NC Contact Group

Outline Drawings and Dimensions

RDA2

Flat Button with Lamp

RDA2 B W3 2 1 2
Model Material Derived Varieties Button Color Volta of Button with La Contact Combination
Push Button Switch B: Metal
E: Plastic		 W3: Flat
Button with Lamp		 1. White
2. Black
3. Green
4. Red
5. Yellow
6. Blue		 1：AC/DC6V
2：AC/DC12V
3：AC/DC24V
4：AC/DC36V
5：AC/DC48V
6：AC/DC110V
7：DC220V
8：AC220V
9：AC380V		 1: 1NO
2: 1NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

Flat Button with Lamp and Self-Lock

RDA2 B W3 2 1 2
Model Material Derived Varieties Button Color Volta of Button with La Contact Combination
Push Button Switch B: Metal
E: Plastic		 W3Z: Flat Buttonwith Lamp andSelf-Lock 1. White
2. Black
3. Green
4. Red
5. Yellow
6. Blue		 1：AC/DC6V
2：AC/DC12V
3：AC/DC24V
4：AC/DC36V
5：AC/DC48V
6：AC/DC110V
7：DC220V
8：AC220V
9：AC380V		 1: 1NO
2: 1NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

Knob-Selection Rules

RDA2 B D2 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 D2: Knob with 2-position Locking
D3: Knob with 3-position Locking
D4: Knob with 2-position Reset
D5: Knob with 3-position Reset
D6: Knob with 2-position Left Reset
D7: Knob with 3-position Right Reset
D8: Knob with 3-position Left Reset		 2. Black
3. Green
4. Red		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

Long-Handle Knob

RDA2 B D2 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 J2: Long-Handle Knob with 2-position Locking
J3: Long-Handle Knob with 3-position Locking
J4:Long-Handle Knob with 2-position Reset
J5: Long-Handle Knob with 3-position Reset
J6: Long-Handle Knob with 2- position Left Reset
J7:Long-Handle Knob with 3- position Left Reset		 2. Black 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

Key Button

RDA2 B D2 2
Model Material Classification Derived Varieties Contact Combination
Push Button Switch B: Metal
E: Plastic		 Y21: Key Button with 2-position Locking (Left-Right Pull-out)
Y22: Key Button with 2-position Locking (Middle (Left )Pull-out )
Y34: Key Button with 3- position Locking (Left, Right,Middle Pull-out)
Y35: Key Button with 3- position Locking (Middle Pull-out )
Y42: KeyButton with 2-position Reset (Left Pull-out )
Y52: KeyButton with 3- position Reset (Middle Pull-out )
Y63: Key Button with 3-position Left Reset (Middle Pull-out )		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

High-head Flat Button-Selection Rules

RDA2 B D2 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 GA: High-head FlatButton 1. White
2. Black
3. Green
4.Red
5.Yellow
6. Blue		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA5

ø 40 Mushroom Head-Selection Rules

RDA2 B D2 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 C: ø 40 Mushroom Head Self-reset Button
T: ø 40 Mushroom Head Self-locking Button		 3. Green
4.Red		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

ø 60 Mushroom Head-Selection Rules

RDA2 B D2 2 2
Model Material Classification Derived Varieties Button Color Contact Combination
Push Button Switch B: Metal
E: Plastic		 R:60 Mushroom Head Self-reset Button
X:60 Mushroom Head Self- locking Button		 3. Green
4.Red		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

Emergency Stop Button-Selection Rules

RDA2 B D2 2
Model Material Classification Derived Varieties Contact Combination
Push Button Switch B: Metal
E: Plastic		 S5:40 EmergencyStop ButtonEmergency
stopbuttons are only red		 1: 1NO
2: 1 NC
3: 2 NO
4: 2NC
5: 1NO1NC
101:1NO Contact Group
102:1NC Contact Group

Outline Drawings and Dimensions

RDA2

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