Allen-Bradley 440RN23131 Guardmaster Safety Relay
- Brand
- Allen-Bradley
- Model
- 440RN23131
- GEARWELL SKU
- GWP-000000765
- Category
- Machine Safety & Vision
Key specifications
- Sub-brand
- Guardmaster
- Product type
- Single-function monitoring safety relay
- Relay family
- MSR127 family
- Supported safety inputs
- 1 N.C., 2 N.C. and OSSD
- Actual manufacturer
- Rockwell Automation / Allen-Bradley
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← Back to productsProduct overview
The Allen-Bradley 440R-N23131 is a Minotaur MSR127TP single-function safety relay for 115V AC with automatic/manual reset and removable screw terminals. It accepts 1 N.C., 2 N.C. or OSSD inputs, checks for cross faults when wired with two N.C. inputs, and has 3 N.O. safety contacts and 1 N.C. auxiliary contact. It is rated Cat. 4, PLe per ISO 13849-1 and SIL 3 per IEC 61508, with a response time of 15 ms. Thermal current is 3 x 3 A or 2 x 4 A. The housing is 22.5 mm wide and mounts on a 35 mm DIN rail.
Technical reference
| Product name | Allen-Bradley 440RN23131 Guardmaster Safety Relay |
|---|---|
| Brand | Allen-Bradley |
| Model | 440RN23131 |
| Category | Machine Safety & Vision |
| Sub-brand | Guardmaster |
| Product type | Single-function monitoring safety relay |
| Relay family | MSR127 family |
| Supported safety inputs | 1 N.C., 2 N.C. and OSSD |
| Actual manufacturer | Rockwell Automation / Allen-Bradley |
| Immediate safety outputs | 3 N.O. |
| Normalized catalog number | 440R-N23131 |
| Immediate auxiliary outputs | 1 N.C. |
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