Rockwell Guardmaster Safety Relay 440R-N23132 24V DC 3NO 1NC

Imagine a machine that stops the moment a safety gate is opened, protecting your workers and your equipment. The Rockwell Guardmaster Safety Relay 440R-N23132 24V DC 3NO 1NC is a compact safety relay that monitors critical signals and cuts power instantly. Many factories face unexpected shutdowns because their safety devices cannot react fast enough or do not meet modern safety standards. This relay gives you a reliable way to meet those standards and keep production running safely.

Rockwell Guardmaster Safety Relay 440R-N23132 24V DC 3NO 1NC

The main problem is the lack of a fast, certified safety cut-off for machines that could cause injury or costly damage. When a safety circuit fails, workers are at risk and downtime can rise sharply. This relay solves the problem by providing a Category 4, SIL 3 rated safety function that reacts in 15 ms, ensuring the machine stops before any harm occurs. It also simplifies compliance with EN 954-1, ISO 13849-1 and other global safety standards, giving you peace of mind and smoother audits.

Usages of Rockwell

The relay fits on a 35 mm DIN rail and can be used in conveyor safety zones, robotic cell guarding, press brake emergency stops, and packaging line interlocks. It works with 24 V DC, 115 V AC or 230 V AC supplies, so you can install it in almost any industrial control panel. Whether you need to protect a single gate or coordinate several safety inputs, the 3 NO and 1 NC contacts give you flexible wiring options for complex safety circuits.

Benefits

• Fast 15 ms response reduces injury risk.
• Meets high-level safety standards for easy certification.
• Low 2 W power draw saves energy.
• Auto reset and manual reset options fit any safety strategy.
• Durable design with up to 2 million mechanical operations.

Key Features

• Category 4, SIL 3 (EN IEC 62061) safety classification.
• 3 normally open (NO) safety contacts and 1 normally closed (NC) auxiliary contact.
• Input resistance up to 110 for reliable signal detection.
• Infinite input simultaneity with auto-reset capability.
• Power-on delay of 1 second to avoid false trips.
• Recovery time of 100 ms and response time of 15 ms.
• Rated impulse voltage of 2500 V for surge protection.
• IP40 enclosure suitable for most industrial environments.
• Operating temperature range -5 C to +55 C.
• Mounts on 35 mm DIN rail for quick installation.

Specifications