NewTrend · four-pole AC switch disconnector
Product overview
NewTrend YH8 is a modular AC switch disconnector for manual isolation and infrequent switching of distribution and control circuits. This page offers the four-pole version at 400/415VAC, 50/60Hz, with ten nominal current versions from 16A to 125A. It has contact-position indication, a transparent identification cover and a 72mm-wide body for TH35-7.5 DIN-rail installation. It is an isolating switch; circuit overcurrent protection is selected separately.
Technical selection summary
| Model | YH8 |
|---|---|
| Product configuration | 4 poles / manually operated AC switch disconnector |
| Rated-current versions | 16 / 20 / 25 / 32 / 40 / 50 / 63 / 80 / 100 / 125A |
| Rated voltage, 4P | 400/415VAC |
| Operating frequency | 50/60Hz |
| Rated insulation voltage | 690V |
| Rated impulse withstand voltage | 6kV |
| Rated short-time withstand current | 12 × Ie for 1s, as listed in the original catalogue |
| Rated short-circuit making capacity | 20 × Ie for 0.1s, as listed in the original catalogue |
| Mechanical durability | 10,000 operations |
| Electrical durability | 1,500–2,500 operations, current-group dependent; see original catalogue |
| Installation | TH35-7.5 standard DIN rail |
| Wiring capacity | 2.5–50mm² |
| Contact indication | Contact-position indication on the front |
| Identification | Transparent label cover |
| Nominal four-pole width | 72mm, +0 / -1.55mm |
| Nominal overall height | 83mm, +0 / -1.2mm |
| Maximum overall depth | 79mm; see original dimension drawing |
| Standards listed in catalogue | IEC 60947-3; GB 14048.3 |
Operation
- Choose the required four-pole rated-current version for the circuit. The current choices are separate device ratings.
- The linked handle operates all 4 poles together. The front marking identifies contact position, and the transparent cover carries an identification label.
- Use a separately selected protective device for circuit overcurrent protection. The catalogue short-time withstand and short-circuit making values are conditional switch ratings.
Typical applications
- Manual isolation in four-pole AC distribution and control circuits
- Main switching in modular terminal-distribution assemblies
- Infrequent switching of suitable low-power appliances and lighting circuits
Product reference images and drawings
Original YH8 model definition and technical specifications
Original dimensions and tolerances for YH8 pole configurations
This page covers the 4P version. The original manufacturer photograph is a 63A example and retains all its technical markings. The current product-specific catalogue controls the 400/415VAC selection shown on this page. Other current ratings are separate versions. The family PDF also illustrates other pole configurations. Installation and wiring must be performed by qualified electricians.
