Deskripsi
| Range name | Harmony |
| Main function | Block |
| Sub-range name | XB4 |
| Control Voltage (AC) | (50/60Hz) 250 Vac |
| Control Voltage (DC) | 250 Vdc |
| Rated impulse voltage (Uimp) | 6 kV |
| Supply voltage | (AC) 250 V |
| (DC) 250 V | |
| Rated current | (120Vac; AC-15) 6 A |
| (240Vac; AC-15) 3 A | |
| (600Vac; AC-15) 1.2 A | |
| (125Vdc; DC-13) 0.55 A | |
| (250Vdc; DC-13) 0.27 A | |
| (600Vdc; DC-13) 0.1 A | |
| Normally Open (NO) auxliary contacts | 1 NO contacts |
| Normally Closed (NC) auxiliary contacts | 1 NC contacts |
| Technical compatibility with | Harmony XB4 |
| Network frequency | 50/60 Hz |
| DC Hz | |
| Compliant with standard(s) | IEC60947-1 |
| IEC60947-5-1 | |
| IEC60947-5-4 | |
| IEC60947-5-5 | |
| UL508 | |
| CSA C22.2 No 14 | |
| Electrical durability (with load) | 1 000 000 operations |
| Mechanical durability (at no load) | 1 000 000 operations |
| Contacts coating | Silver alloy (Ag / Ni) |
| Degree of protection | IP20 |
| Material | (body) Zamak |
| Technology used in component | Incandescent bulb |
| Type of terminals | Screw-clamp |
| Functions | Light block with body/fixing collar for BA9s bulb |
| Primary brand | Schneider Electric |
| Secondary brand | Telemecanique |
