Provide secure, key-controlled operation for commercial access-control and electrified-door systems with the Detex 103455-1 CS-452 CS Series Key Switch.

The CS-452 features a single momentary Form C switch combined with two integrated LED indicators — green and red. The LEDs support 12 or 24 VDC input, providing clear visual status indication when connected to compatible door-control or access-control equipment.

Designed for applications including delayed egress, electric dogging, exit alarms, electric locks, and access-control systems, the CS-452 provides a durable control station for authorized door operation.

Key Features

• Genuine Detex CS Series keyswitch

• Detex Part Number: 103455-1

• Model: CS-452

• Single momentary key switch

• Form C switch contacts

• 5-amp switch rating

• Two integrated LED indicators

• Green LED

• Red LED

• LEDs accept 12 or 24 VDC

• Heavy-duty extruded stainless-steel faceplate

• Fits a standard switch outlet box

• Minimum box depth: 1-7/8"

• Accepts standard 5-, 6-, or 7-pin mortise cylinders

• Requires mortise cylinder with Yale-style cam

• Two-position switch bracket allows clockwise or counterclockwise cylinder rotation

• Commercial-duty access-control component

Momentary Switch Operation

The CS-452 uses a momentary switch, meaning the electrical contacts change state only while the key is operated. When the key is released, the switch returns to its normal position.

This makes the CS-452 ideal for applications such as:

• Momentary electric lock release

• Authorized door release

• Delayed-egress reset or control

• Electric dogging control

• Exit-alarm control

• Access-control signaling

• Electrified exit-device operation

• Remote system control

The exact switch and LED functions depend on how the keyswitch is wired to the connected controller or access-control system.

Dual LED Status Indicators

The integrated red and green LEDs provide visual status indication at the control point.

Depending on system wiring, the LEDs may be used to indicate conditions such as:

• Locked / Unlocked

• Armed / Disarmed

• Secure / Access Granted

• Normal / Alarm

• Door or system status

Both LEDs are designed for 12 or 24 VDC operation.

Product Specifications

Brand: Detex
Part Number: 103455-1
Model: CS-452
Series: CS-400 Series
Product Type: Key Switch
Number of Switches: 1
Switch Action: Momentary
Contacts: Form C
Switch Rating: 5 Amp
LED Indicators: 2
LED Colors: Green & Red
LED Voltage: 12 or 24 VDC
Faceplate Material: Extruded Stainless Steel
Mounting: Standard Single-Gang Switch Outlet Box
Minimum Box Depth: 1-7/8"
Overall Width: 2.75"
Overall Height: 4.5"
Overall Depth: 1.75"
Cylinder: Standard 5-, 6-, or 7-Pin Mortise Cylinder with Yale Cam
Application: Access Control / Electrified Door Hardware

Packaging Details / What's Included

Package Quantity: 1 Detex CS-452 Key Switch Assembly

The assembly includes the CS-452 control configuration with:

• Single momentary switch

• Stainless-steel faceplate

• Integrated green LED

• Integrated red LED

Not Included

• Mortise cylinder – sold separately

• Single-switch back box – not included

• Optional Detex PC1 Keyswitch Cover & Adapter Plate – sold separately

Detex specifically states that the CS-452 is pictured with a cylinder for reference but that the cylinder is sold separately, and that the single-switch back box is not included.

Important: Detex's published CS-452 literature provides the physical dimensions of the keyswitch assembly but does not publish factory shipping-carton dimensions or packaged shipping weight, so those values should not be entered into Shopify unless measured from your stocked package.

Cylinder Requirements

The CS-452 accepts standard 5-, 6-, or 7-pin mortise cylinders with a Yale cam.

When using a 7-pin cylinder, Detex specifies the use of collar part number 103003.

Common Applications

• Detex delayed-egress systems

• Electrified exit devices

• Electric dogging systems

• Exit alarm systems

• Electric locks

• Access-control systems

• Commercial security doors

• Healthcare facilities

• Schools and universities

• Government buildings

• Warehouses

• Industrial facilities

• Commercial buildings