Allen-Bradley – 440R-EM4R2D – GuardMaster Expansion Module with 4 Delayed Safety

Manufacturer: Allen‑Bradley / Rockwell Automation (GuardMaster series)  

Model/MPN: R‑EMRD — expansion module (EMD) for safety relay systems  

Power Supply:  V DC, consumption ~. W  

Inputs:

• Single‑Wire Safety (SWS) input for connection to Master relay/mutations  

Safety Outputs:

• × Normally‑Open relay contacts, time‑delayed safety outputs—ideal for sequential operations  

Auxiliary Output:

• solid-state auxiliary output (diagnostic), with surge current capability  

Mounting & Connections:

• . mm DIN‑rail width, removable screw‑clamp terminals, LED status indicators

Safety & Certifications:

• Meets ISO - PL e (Cat ), IEC SIL , and IEC - standards  

• UL recognized, CE marked  

Environmental:

• Operating temp: – °C to + °C; IP housing; rugged industrial build  

Performance Specifications:

• Aggregate safety output current: up to  A; individual output  A @ VDC  

• Time delay adjustable (~.× to × scale, max ~ s) with integrated selector dial