General ordering data
| Version | Surge voltage arrester, Low voltage, Surge protection, with remote contact, TN-C-S, TN-S, TT, IT with N, IT without N | 
| Order No. | 2591090000 | 
| Type | VPU AC II 3+1 R 300/50 | 
| GTIN (EAN) | 4050118599848 | 
| Qty. | 1  items | 
 
 
Dimensions and weights
| Depth | 68  mm | 
| Depth (inches) | 2.677  inch | 
| Depth including DIN rail | 76  mm | 
| Height | 104.5  mm | 
| Height (inches) | 4.114  inch | 
| Width | 72  mm | 
| Width (inches) | 2.835  inch | 
| Net weight | 488  g | 
 
 
Temperatures
| Storage temperature | -40 °C...85 °C | 
| Operating temperature | -40 °C...85 °C | 
| Humidity | 5 - 95% rel. humidity | 
 
 
Environmental Product Compliance
| RoHS Compliance Status | Compliant without exemption | 
| REACH SVHC | No SVHC above 0.1 wt% | 
 
 
 
Connection data, remote alert
| Connection type | PUSH IN | 
| Cross-section for connected wire, solid core, max. | 1.5  mm² | 
| Cross-section for connected wire, solid core, min. | 0.14  mm² | 
| Stripping length | 8  mm | 
 
 
General data
| Colour | black orange
 blue
 | 
| Design | Installation housing; 4TE Insta IP 20
 | 
| Operating altitude | ≤ 4000 m | 
| Optical function display | green = OK; red = arrester is defective - replace | 
| Protection degree | IP20 in installed state | 
| Rail | TS 35 | 
| Segment | Power distribution | 
| UL 94 flammability rating | V-0 | 
| Version | Surge protection with remote contact
 |