Maintained 3-Position Key Switch: With AUTO/ON/OFF Labels
This is a versatile, single-gang, maintained 3-position key switch designed to control access or system states across three distinct modes: “AUTO – ON – OFF”. Constructed from durable brushed stainless steel for a professional finish, it is designed for secure, flush-mount installation, making it suitable for a wide range of commercial and industrial access control applications.
Key Features:
- Brushed Stainless Steel Key switch
- Single-Gang 85mm x 85mm
- 3 Position
- Flush-Mount
- Single-Pole COM/NO/NC Contact
- Two Keys Included (Keyed Alike)
- Key can be removed in both positions
Full Description
The Maintained 3-Position Key Switch: Secure, Single-Gang Control with SPDT Contacts
This 3-Position Key Switch provides secure, maintained control for applications requiring “AUTO – ON – OFF” functionality. The switch is built into a flush-mount, single-gang faceplate made of durable, brushed stainless steel, offering a professional and robust security solution. It utilizes a Maintained (or latching) action, meaning the contacts remain in the selected position (Auto, On, or Off) until the key is physically turned to another position. The switch is a single-pole type, featuring SPDT (Single Pole, Double Throw) contacts, giving you both Normally Open (NO) and Normally Closed (NC) circuits along with the Common (COM) terminal for versatile wiring options.
Key Features:
- 3-Position Key Switch Functionality: Provides three distinct, identifiable settings: AUTO – ON – OFF. This is ideal for overriding automated systems, locking out a system, or setting a continuous operation mode.
- Maintained Action: The switch is latching; once a position is selected, the contacts stay in that state until the key is physically turned to a new position.
- SPDT Contacts: Features a single pole with Change-Over-Contacts (COM / NO / NC), providing maximum flexibility for wiring into various control circuits.
- Durable Construction: Built with a brushed stainless steel finish, ensuring high resistance to wear and providing a modern, professional look.
- Flush Mount: Designed to be installed flush into a wall or standard back box, offering a clean, unobtrusive appearance.
- Single-Gang Size: The dimensions of the faceplate are designed to fit a standard single-gang electrical box (85mm x 85mm).
- Security: Supplied with two keys for secure, authorised access control over the system’s operational mode.
Technical Information:
- Action Type: Maintained (Latching)
- Positions: 3-Position (“AUTO – ON – OFF”)
- Contact Type: Single Pole, Change-over-contacts (COM / NO / NC / SPDT)
- Material: Brushed Stainless Steel
- Mounting: Flush mount
- Dimensions: 85mm x 3mm (Plate Thickness) x 85mm (Fits standard single-gang box)
- Keys: Supplied with 2 keys
Benefits of a Maintained 3-Position Key Switch:
- Versatile Control: Excellent for access control systems, fire systems, locking mechanisms, or HVAC where manual override or mode selection is required.
- Security: The Maintained 3-Position Key Switch requires a key to change the system’s operational status, preventing unauthorised changes.
- Robustness: The stainless steel plate and simple mechanism ensure longevity and reliability in high-traffic or sensitive areas.
- Clean Aesthetics: The flush-mount, stainless steel design offers a clean, professional finish.
Ideal Applications:
- Access Control: Enabling/disabling a door’s access control reader (“OFF”) or setting a door to free egress (“ON”).
- Security Systems: Key-override for alarm or fire systems.
- Automatic Doors: Setting the door to automatic cycling (“AUTO”), permanently open (“ON”), or secured/locked (“OFF”).
- HVAC Systems: Manually overriding temperature or fan controls.
Product Specifications
| Dimensions | 85 × 85 mm |
|---|---|
| Brand | Smart R Distribution |
| Colours | Stainless Steel |
| Contacts | 1-pole changeover (1 x SPDT) |
| Keyswitch | Maintained |
| SKU | SR1-KSW-401F |