Allen‑Bradley 440N-S32021 Safety Control Unit

440N-S32021 Basic Information
– Brand: Allen‑Bradley (Rockwell Automation)
– Model: 440N-S32021
– Ordering Number: 440N-S32021
– Product Name: Guardmaster SIPHA 2 Safety Control Unit
– Country of Origin: Dominican Republic
– Customs HS Code: 85371011 (industrial safety control relays)
– Dimensions: 130 mm × 45 mm × 55 mm (L×W×H)
– Weight: Approx. 0.46 kg (1.015 lb)

Electrical Specifications
– Power Supply: 24 VAC/DC (±10%); 110 VAC/230 VAC, 50/60 Hz (selectable)
– Input: 1‑channel input for SIPHA non‑contact magnetic sensors (9 mm switching distance)
– Output: 2 safety normally open (N.O.) contacts; 1 auxiliary normally closed (N.C.) contact
– Contact Rating: 2 A at 250 VAC (resistive load)
– Reset Mode: Automatic or manual (via external button)
– Operating Temperature: -10°C to +55°C
– Protection Rating: IP20 (enclosure); compatible with IP67 sensors
– Certifications: CE, UL, CUL, KC, CCC; Safety Category 3 per EN 954‑1
Key Features
– Magnetic Coded Sensing: Works with SIPHA non‑contact sensors for tamper‑resistant guard door monitoring.
– Dual Safety Outputs: 2 N.O. safety contacts provide redundant safety signaling for high‑risk applications .
– Universal Voltage Input: Accepts 24 VAC/DC or 110/230 VAC for global deployment.
– DIN Rail Mounting: 45 mm polycarbonate housing for standard 35 mm DIN rail installation.
– Flexible Reset Options: Supports automatic reset or manual reset via external pushbutton.
– External Device Monitoring: Monitors contactors or other external safety components for enhanced system integ