440R-N23126 Rockwell Allen-Bradley 440R Single Function Safety Relays 1NC 3NO 24VDC

440R-N23126 Rockwell Allen-Bradley 440R Single Function Safety Relays 1NC 3NO 24VDC

Product Name: Rockwell Allen-Bradley MSR127T Single-Function Safety Relay – Model 440R-N23126

Key Selling Points: Global certifications: TÜV, CE, cULus, SIL 3 / PL e (Cat. 4), meeting the latest safety standards of ISO 13849-1 & IEC 62061. Three normally open safety contacts + one normally closed auxiliary contact, providing a one-stop solution for single-zone protection needs such as E-Stop, light curtains, and safety door switches. 24V AC/DC wide-range power supply provides flexible on-site power supply and simplified inventory management. Automatic/manual dual reset modes are switchable to accommodate various process safety strategies. Ultra-thin 22.5mm DIN rail mounting saves over 30% of cabinet space. IP40 housing + IP20 terminals, full industrial temperature range of -5…+55°C, 10g weight. Shock-resistant design ensures long-term, stable operation in machine tools, packaging, and automotive production lines.

Technical Parameters
Brand: Allen-Bradley
Series: MSR127T / Minotaur
Order Number: 440R-N23126
Supply Voltage: 24 V AC/DC (20.4…26.4 V)
Safety Contacts: 3 × NO (Normally Open), positively guided
Auxiliary Contact: 1 × NC (Normally Closed)
Input Channels: 2 (Supports 1 NC + 1 light curtain/curtain)
Rated Switching Capacity: 6 A / 250 V AC, 5 A / 24 V DC (AC-15/DC-13)
Mechanical Life: ≥ 2,000,000 Operations
Electrical Life: ≥ 1,000,000 Operations (Rated Load)
Response Time: < 20 ms
Reset Method: Automatic/Manual Switchable
Terminal Type: Fixed Screw Terminals, Maximum 2.5 mm²
Mounting: 35 mm DIN DIN Rail
Dimensions (H×W×D): 99 × 22.5 × 114.5 mm
Weight: ≈ 210 g
Operating Temperature: -5…+55°C (23…131°F)
Storage Temperature: -25…+70°C
Protection Rating: IP40 (housing) / IP20 (terminals)
Shock Resistance: 10 g / 16 ms (100 times)
Vibration Resistance: 10…55 Hz, 0.35 mm
Certifications: TÜV, CE, UL, cULus, SIL 3, PL e / Cat. 4

Typical Applications
Emergency Stop Button Safety Chain
Direct Monitoring of Safety Light Curtains/Grids
Safety Door Interlocks, Safety Mats, Two-Hand Control Panels
Small Packaging Machines, Injection Molding Machines, Textile Machinery, Robotic Workstations, Single-Zone Safety Control

Installation and Maintenance
Snaps onto a 35 mm DIN rail, no additional tools required
Recommended functional test every 6 months, meets IEC 62061 Requirements
Terminal torque of 0.5…0.6 N·m ensures secure wire connection.
LED rapid diagnostics in the event of a fault reduce downtime and troubleshooting by 70%.

Product details pictures

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