Outdoor manual drive NRO 110
Application:
Manual drive NRO 110 is designed for closing and opening disconnectors with high voltage outdoor earthing switches with a 192° rotation angle for adjustment. The NRO 110 drive is dedicated for single-pole earthing switches of the transformer zero point.
Advantages:
- simple design
- shortened duration of emergency shutdown
- operating reliability
- 2000 switching cycles
- maintenance free
- auxiliary switch for control and signalling circuits
- anticorrosive protection of the casing through the use of aluminium sheet and painting
Technical data:
| Rated torque | 350 Nm |
| Rotation angle of the main shaft | up to 192° |
| Blocade voltage | 230 VAC / 220 VDC |
| Heater voltage | 230 VAC / 220 VDC |
| Heater power | 25 W |
| Rated switching capacity of the auxiliary switch | AC 230 V; 5 A | DC 220 V; 0,25 A |
| Housing protection class | IP 54 |
| Rated mechanical durability | 2000 cycles |
| Weight | 28 kg |
Operating conditions:
The drives can be installed in outdoor switchgears under the following conditions:
| Temperature | -40 up to +40°C |
| Air humidity | up to 100% at 20°C |
| Sea level altitude | up to 1000 m |
| Wind speed | up to 30 m/s |
Operating:
The drive is manoeuvred by means of a lever which is locked in the end positions and locked by a padlock. During the entire operating phase of the drive, the shaft movement operates at the auxiliary contact, opening its normally-closed contacts, and then when the main shaft reaches the end position, the normally open contacts are closed.
Technical drawings:
Declaration of conformity:
All technical data presented in the catalog can be changed due to technological progress.
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