This document is the manual for JQX-105F-4 AC contactor. The product has 30A switching capacity, 2.5KV dielectric resistance, and can withstand 7200VA heavy load. It is available in Class B and Class F insulation types.
The JQX-105F-4 is a miniature high‑power relay offering 30 A switching capability, 2.5 kV dielectric isolation, and a heavy load rating up to 7,200 VA. It features sealed construction, dust cover, and options for Class B or Class F insulation. Key electrical data include a coil power of 0.9 W, coil voltage range of 5‑110 VDC or 12‑277 VAC, and an initial contact resistance of 50 mΩ at 1 A/24 VDC.
Ordering information lists the part numbers JQX-105F-4 (30 A) and JQX-105F-4L (25 A) with dimensions, wiring diagram, PCB layout, and mechanical/electrical life ratings. The datasheet also provides characteristic curves for coil temperature rise and maximum switching power, as well as environmental limits such as –55 °C to 60 °C operating temperature.
| Maximum switching current | 30 A |
|---|---|
| Dielectric voltage (coil to contacts) | 2.5 kV |
| Maximum load rating | 7,200 VA |
| Coil power consumption | 0.9 W (DC) |
| Coil voltage range | 5‑110 VDC / 12‑277 VAC |
| Initial contact resistance | 50 mΩ at 1 A/24 VDC |
| Mechanical life | 1 × 10⁶ operations |
| Electrical life | 1 × 10⁶ operations |
| Unit weight | ≈ 36 g |
| Insulation class options | Class B, Class F |
| Operating temperature range | –55 °C to 60 °C |
The relay can be driven with a coil voltage of 5 to 110 VDC or 12 to 277 VAC.
It can switch up to 30 A at 277 VAC.
The unit weight is approximately 36 grams.
Both Class B and Class F insulation are offered.