Allen-Bradley 440R-N23126 Safety Relay 24V AC/DC
Allen-Bradley 440R-N23126 Safety Relay 24V AC/DC
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Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.
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Estimated package weight: 5.0 lbs
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Product Specifications
- Manufacturer: Allen-Bradley
- MPN / Model: 440R-N23126
- Product Name: MSR127T
- Product Type: Safety Relay
- Series: C
- Supply Voltage: 24VAC/DC, 50/60Hz, 2W
- Output (AC15): 250V, 5A
- Output (DC13): 24V, 3A
- UL Rating: B300, P300, 5A
- Ambient Temperature: 55°C max
- Certifications: TÜV Rheinland FS, CCC, CE, UL Listed IND.CONT.EQ. 92ZL N223
- Country of Origin: Dominican Republic
- Factory Order: 40034994561303
Product Description
Allen-Bradley catalog number 440R-N23126 Series C is a Guardmaster MSR127T Safety Relay manufactured by Rockwell Automation Technologies. Rated for 24VAC/DC supply at 50/60Hz, the unit provides AC15 output at 250V 5A and DC13 output at 24V 3A. The relay carries TÜV Rheinland FS type approval, CCC certification, CE marking, and UL listing as industrial control equipment (file 92ZL, N223). Terminal layout includes dual safety input channels with connections at A1, S11, S12, S21, S22, S34, and S52, and four output contacts at 13/14, 23/24, 33/34, and 41/42 as shown on the front face schematic. Buyers sourcing an exact 440R-N23126 or MSR127T replacement for a Guardmaster safety circuit can use the catalog number and Series C designation to match this unit to existing equipment documentation or purchasing records.
Please Note: This unit is surplus inventory, sold as-is from MRO Exchange surplus stock. Allen-Bradley is a trademark of Rockwell Automation, Inc. MRO Exchange is an independent reseller and is not an authorized distributor of Rockwell Automation. Product may differ from units available through authorized distributors in date code, country of origin, packaging, accessories, or firmware revision. The warranty from the manufacturer does not apply.

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Returns & Condition
All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.
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