| Type | HF3FF | |
| Coil voltage form | DC | |
| Coil voltage | 24, 5, 12, 018, 3, 48, 6, 9 | |
| Contact arrangement | 1 Form C, 1 Form A | |
| Contact version | single contact | |
| Terminal type | PCB | |
| Mounting | PCB-THT | |
| Construction | Plastic sealed, Flux proofed | |
| Coil power | Standard | |
| Sort | Single side stable | |
| Contact capacity | AgCdO, AgSnO2 | |
| Insulation standard | Class B, Class F | |
| Contact plating | Without plating | |
| Packing method | Tube packing or Carton packing | |
| Rated voltage(V) | 277V.a.c | |
| Coil power | Approx 0.36 | |
| Dielectric strength (between coil & contacts) (VAC 1min) | 2500VAC 1min | |
| Operate time(ms) | ≤10 | |
| Release time(ms) | ≤5 | |
| Creepage Distance(mm) | 3.2 | |
| Electrical Distance(mm) | 1.6 | |
| Insulation resistance(MΩ) | 100 | |
| Max. switching Current(AC) | 10 | |
| Max. switching voltage(DC) | 10 | |
| Max. switching voltage(VAC) | 277VAC | |
| Max. switching voltage(VDC) | 28VDC |