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SWITCHLAB INC.
22A20 Switch Series:Selector Switches

22A20 Switch Series:Selector Switches

Product catalog summary

Selector Switches Construction and Specifications

This section details the technical specifications, configurations, and dimensions for various selector switches, including standard and metal bezel models.

1. Selector Switch Types and Configurations

90°-2 Position Switches: Available in maintained (alternate) and spring return types (return from right). Contact configurations include 1NO-2NC, 2NO-1NC, 3NO, 3NC, and mixed types.
45°-3 Position Switches: Offered in maintained and spring return variants with return directions from right, left, or two-way. Contact configurations mirror 2-position types but adapted for three positions, including multiple 1NO-1NC variants.
Metal Bezel Selector Switches: Similar to standard switches but with metal bezels for enhanced durability and aesthetics, available in the same position counts and contact configurations.

2. Contact Configurations and Codes

Switches are identified by type numbers and contact configuration codes indicating internal electrical arrangements, such as 1NO, 1NC, 2NO, 2NC, 3NO, 3NC, and mixed combinations like 1NO-1NC, 1NO-2NC, 2NO-1NC.

3. Operating Voltage and Lens Color Codes

Operating voltage codes and lens color codes denote electrical ratings and visual identification. Lens colors include black, green, red, blue, white, and yellow.

4. Dimensional Specifications

Panel thickness compatibility: 0.8 mm to 6 mm.
Operator knob diameters: approx. Ø28.8 mm (standard bezel) and Ø34.8 mm (metal bezel).
Dimensions such as length, center, and right positions are provided in millimeters, typically around 45.7 mm to 45.8 mm for height and width.

5. Operator Positions and Mounting

Designed for panel mounting with specified operator positions (L, R, C) corresponding to mechanical rotation or spring return direction. Mounting types and positions are clearly indicated for installation.

6. Summary of Good Practices and Limitations

Select contact configuration matching circuit requirements.
Verify panel thickness compatibility before installation.
Choose lens color for visual identification and safety compliance.
Consider metal bezel options for mechanical protection and aesthetics.
Confirm spring return direction (right, left, two-way) based on application ergonomics.

7. Reference Pages

Detailed drawings and additional specifications are available on pages 43-48 and 81-93 for standard and metal bezel selector switches respectively.

Selector Switches Overview (A204S Series with Metal Bezels)

This section focuses on A204S series selector switches featuring metal bezels, specifically 45°-3 position knob types with spring return mechanisms.

1. Contact Configurations

Various contact arrangements include combinations of Normally Open (NO) and Normally Closed (NC) contacts such as 1NO-2NC, 2NO-1NC, 3NO, 3NC, and multiple 1NO-1NC variants identified by specific type numbers.

2. Mechanical and Dimensional Specifications

Panel Thickness: Compatible with 0.8 mm to 6 mm thick panels.
Dimensions: Diameter ranges from approx. Ø28.8 mm to Ø34.8 mm depending on bezel type.
Operator Positions: Supports 3 positions at 45° increments with spring return from left or two-way.

3. Switch Types and Variants

Left Spring Return: Returns to initial position from the left side.
Two-Way Spring Return: Returns from both directions.

Available with or without lamps and in lens colors black, green, red, blue, white, and yellow, identified by color codes (e.g., blank for black, G for green).

4. Model Numbering and Coding

Model numbers encode contact configuration, operating voltage, lens color, and mounting type. Suffixes like "-U" indicate specific mounting or bezel styles. A comprehensive list of model numbers with configurations and color codes is provided.

5. Recommendations and Usage Notes

Ensure panel thickness compatibility (0.8–6 mm).
Select contact configuration based on circuit needs.
Choose lens color codes for visibility or design requirements.
Verify spring return type (left or two-way) for intended operation.

6. Summary of Key Parameters

Parameter	Value / Range
Panel Thickness	0.8 to 6 mm
Switch Positions	3 positions at 45° increments
Contact Types	1NO, 2NO, 3NO, 1NC, 2NC, 3NC combinations
Dimensions	Diameter approx. 28.8 mm to 34.8 mm
Lens Colors	Black, Green, Red, Blue, White, Yellow
Spring Return Types	Left return, Two-way return

Conclusion

This document serves as a comprehensive technical reference for selecting and specifying A204S series selector switches with metal bezels. It covers mechanical dimensions, contact configurations, color coding, and operational characteristics essential for proper integration into electrical control panels.

Catalog excerpts

開關構造說明Switch Construction Instructions

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選擇開關 (Selector Switches) (Selector Switches) 90°-2 / 90°-2位置 (90°-2 Position / Knob Position / Knob / 交替型標準旋鈕 (90°-2Type with Maintained)Type with Maintained) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) Knob Type (11) with Maintained) 3NO (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 2

選擇開關 (Selector Switches) (Selector Switches) 90°-2 / 90°-2位置 (90°-2 Position / Knob Type with Spring Return from Right) / 右復歸型標準旋鈕 (90°-2 Position / Knob Type with Spring Return from Right) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (90°-2 Position / Knob Type with Spring Return from Right) L (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 3

jMJ^Hfllf (Selector Switches) 45° SitLM I 3£HMfI*iMfl (45° -3 Position / Knob Type with Maintained) (Operating Voltage Code) (Lens Color Code©) Knob Type (Without Lamp) blank : black EfixJSJS (Panel Thickness)

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選擇開關 (Selector Switches) (Selector Switches) 45°-3位置 / 右復歸型標準旋鈕 (45°-3Type with Spring Return fromwith 45°-3 / (45°-3 Position / Knob Position / Knob Type Right) Spring Return from Right) A20S (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Spring Return from Right) (Operating Voltage Code) (Lens Color Code (Without Lamp) ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 5

選擇開關 (Selector Switches) (Selector Switches) 45°-3 / (45°-3 Position / Knob Type with Spring Return from Left) 45°-3位置 / 左復歸型標準旋鈕 (45°-3 Position / Knob Type with Spring Return from Left) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Spring Return from Left) (Operating Voltage Code) (Lens Color Code (Without Lamp) ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 6

選擇開關 (Selector Switches) (Selector Switches) 45°-3 / (45°-3 Position / Knob Type with Spring Return from with 45°-3位置 / 雙向復歸型標準旋鈕 (45°-3 Position / Knob Type Tow-Way) Spring Return from Two-Way) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Spring Return from TowWay) L (Operating Voltage Code) (Lens Color Code (Without Lamp) ■外型尺寸(Dimensions)mm (Panel Thickness) 0.8~6

Open the catalog to page 7

Metal Bezels 開關構造說明Switch Construction Instructions

Open the catalog to page 8

Metal Bezels 選擇開關 (Selector Switches with Metal Bezel) Switches) (Selector 90°-2位置 90°-2 / / 交替型標準旋鈕 (90°-2 Type with Maintained & Metal Bezel) (90°-2 Position / Knob Position / Knob Type with (Contacts) (Operator Position) (Configuration) (Mounting) (Position) Knob Type (11) with Maintained) 3NO (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 9

22A20 Switch Series:Selector Switches-10

Metal Bezels 選擇開關 (Selector Switches with Metal Bezel) Switches) (Selector 90°-2位置 90°-2 / / 交替型金屬框標準旋鈕/ Knob Type Position / Knob Type with (90°-2 Position (90°-2 with Maintained & Metal Silhouette) Maintained & Metal Silhouette) A204S (Contacts) (Operator Position) (Configuration) (Mounting) (Position) Knob Type (11) with Maintained) 3NO (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

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22A20 Switch Series:Selector Switches-11

Metal Bezels 選擇開關 (Selector Switches with Metal Bezel) Switches) (Selector 90°-2位置 90°-2 / / 右復歸型金屬框標準旋鈕/ (90°-2 Position / Return from Right & Metal Bezel) (90°-2 Position Knob Type with Spring Knob Type with Spring Return from Right & Metal Bezel) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (90°-2 Position / Knob Type with Spring Return from Right) L (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 11

22A20 Switch Series:Selector Switches-12

Metal Bezels 選擇開關 (Selector Switches with Metal Bezel) Switches) (Selector 90°-2位置 90°-2 / / 右復歸型金屬框標準旋鈕/ (90°-2 Position / Return from Right & Metal Silhouette) (90°-2 Position Knob Type with Spring Knob Type with Spring Return from Right & Metal Silhouette) A204S (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (90°-2 Position / Knob Type with Spring Return from Right) L (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 12

22A20 Switch Series:Selector Switches-13

Metal Bezels 選擇開關 (SelectorSwitches with Metal Bezel) Switches) (Selector / 交替型金屬框標準旋鈕 Knob Type with MaintainedKnob Type with (45°-3 Position / (45°-3 Position / & Metal Bezel) Maintained & Metal Bezel) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Maintained ) (Operating Voltage Code) (Without Lamp) (Lens Color Code

Open the catalog to page 13

22A20 Switch Series:Selector Switches-14

Metal Bezels 選擇開關 (SelectorSwitches with Metal Bezel) Switches) (Selector / 交替型金屬框標準旋鈕 Knob Type with MaintainedKnob Type with (45°-3 Position / (45°-3 Position / & Metal Silhouette) Maintained & Metal Silhouette) A204S (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Maintained ) (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

Open the catalog to page 14

22A20 Switch Series:Selector Switches-15

Metal Bezels 選擇開關 (SelectorSwitches with Metal Bezel) Switches) (Selector / 右復歸型金屬框標準旋鈕 Knob Type with Spring Return from Right & Metal Bezel) (45°-3 Position / (45°-3 Position / Knob Type with Spring Return from Right & Metal Bezel) (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Spring Return from Right) (Operating Voltage Code) (Without Lamp) (Lens Color Code

Open the catalog to page 15

22A20 Switch Series:Selector Switches-16

Metal Bezels 選擇開關 (SelectorSwitches with Metal Bezel) Switches) (Selector / 右復歸型金屬框標準旋鈕 Knob Type with Spring Return from Right & Metal Silhouette) (45°-3 Position / (45°-3 Position / Knob Type with Spring Return from Right & Metal Silhouette) A204S (Contacts) (Operator Position) (Configuration) (Mounting) (Position) (45°-3 Position / Knob Type with Spring Return from Right) (Operating Voltage Code) (Lens Color Code (Without Lamp) blank ■外型尺寸(Dimensions) mm (Panel Thickness) 0.8~6

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