Selector Switch 3 Pos.
Selector Switch 3 Pos.
Blog Article
Selector Switch (3-Position) – Technical Guide
Selector switches with 3 positions (ON-OFF-ON, ON-ON-ON, or other configurations) are used for manual control, mode selection, or circuit switching in industrial panels. Below are the key details:
???? Key Features
1. Positions & Contact Types
Common Configurations:
ON-OFF-ON (Center OFF position)
ON-ON-ON (3 active positions)
Maintained or Spring-Return (Momentary)
Contact Arrangement:
1NO + 1NC (per circuit)
2NO + 2NC (for dual circuits)
2. Electrical Ratings
Voltage: 24V DC to 600V AC
Current: 5A–10A (resistive), 2A–5A (inductive)
Terminals: Screw or spring-clamp
3. Enclosure & Mounting
Panel Cutout: Typically 22mm, 30mm, or 16mm
IP Rating: IP65 (dust/waterproof) for outdoor/industrial use
Material: Plastic (PA66) or metal (zinc alloy)
???? Popular 3-Position Selector Switch Models
| Brand | Model | Positions | Contacts | Mounting |
|---|---|---|---|---|
| Schneider | XB5AD33 | ON-OFF-ON | 2NO + 2NC | 22mm ⌀ |
| Siemens | 3SU1400-1AB30-1CA0 | ON-ON-ON | 3NO | 30mm ⌀ |
| ABB | 1SCA022753R1000 | ON-OFF-ON | 1NO + 1NC | 22mm ⌀ |
| Allen-Bradley | 800T-J2X | ON-OFF-ON (Maintained) | 2NO + 2NC | 30mm ⌀ |
| Eaton | XVE-133-1S10-24 | ON-ON-ON (Momentary) | 3NO | 16mm ⌀ |
https://store.unigulfsupply.com/product/selector-switch-db2-bd33/. Typical Wiring (ON-OFF-ON Example)
Motor control (FWD-OFF-REV)
Mode selection (Manual/Auto/Off)
Lighting control (High/Off/Low)
Pump systems (Run/Off/Test)
???? Selection Guide
Choose the contact type (NO/NC) based on circuit logic.
Select voltage/current rating matching your load.
Pick mounting style (panel, DIN rail, or threaded bushing).
Consider environmental needs (IP65 for washdown areas).
???? Accessories
Knobs & Labels (Custom markings for positions)
Protective covers (Anti-tamper or dust shields)
DIN Rail Adapters (For modular panels)