Allen-Bradley 440E-LL5SN8 Lifeline 5 Emergency Stop Device
The Allen-Bradley 440E-LL5SN8 Guardmaster Lifeline 5 is an advanced electronic cable pull safety switch and emergency stop device manufactured by Rockwell Automation. Engineered for maximum reliability in demanding industrial environments, this solid-state switch operates on a 24V DC power supply and delivers a 200mA output current. It is housed in a rugged, IP66-rated Type 1 enclosure, ensuring exceptional resistance to dust and water ingress. The device features integrated status LEDs for immediate visual diagnostics, a built-in tension indicator, and a manual reset button to streamline maintenance and minimize downtime. With an operating temperature range of -20°C to +75°C and rigorous functional safety certifications including TÜV Rheinland, CE, UKCA, and cULus, the 440E-LL5SN8 guarantees superior protection and compliance for automated machinery and conveyor systems.
Technical Specifications:
- Brand: Allen-Bradley / Rockwell Automation
- Model: 440E-LL5SN8 (Series A, H/W Rev B, F/W Rev 1.006)
- Product Type: Guardmaster Lifeline 5 Cable Pull Safety Switch
- Input Voltage (Ue): 24V DC (Class 2 Source Required)
- Output Current: 200mA (OSSD Outputs)
- Operating Temperature: -20°C to +75°C
- Ingress Protection Rating: IP66 (Type 1 Enclosure)
- Key Features: Status LEDs, Manual Reset Button, Solid-State OSSD Safety Outputs
- Certifications: cULus Listed, CE, UKCA, TÜV Rheinland Functional Safety Type Approved

| Brand | Allen-Bradley |
|---|---|
| Model | 440E-LL5SN8 |
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ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
Allen-Bradley 440E-LL5SN8 Lifeline 5 Emergency Stop Device
Shop the Allen-Bradley 440E-LL5SN8 Guardmaster Lifeline 5 Emergency Stop Device. This 24VDC electronic cable pull safety switch offers IP66 protection, solid-state OSSD outputs, and LED diagnostics to deliver reliable, certified functional safety for your industrial conveyor and automation systems.

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