105 solar pv
ABB Low Voltage Contractor 0312
8
OVR PV Surge Arresters
ABB provides a wide range of surge protection devices that have been specifically designed for photovoltaic
systems.
The main features of the OVR PV surge arresters are:
- built-in thermal protection with 25 A d.c. breaking capacity*
- removable cartridges for easy maintenance with no need to isolate the line
- remote signalling contact for monitoring the operating status (TS versions)
- no subsequent short-circuit current
- no risk if the polarity is reversed
E90 Fuse Disconnectors
The E 90 PV series fuse disconnectors has been designed for up to 1000 V direct current voltage with DC-20B
class of use. The E 90 PV series is specifically used for protecting photovoltaic systems against overcurrents
and provides a reliable, compact and inexpensive solution since it uses 10.3 x 38 mm cylindrical fuses. The main
features of E 90 PV fuses connectors are:
- Handle opening through 90° that allows the horizontal fuse to be easily inserted even when wearing gloves or
using the thumb
- Only an additional 17 mm larger in the open position than in the closed position
- 25 mm2 terminals with knurled terminal cage to allow the cable to be clamped in a better way
- Fully compatible with electric screwdrivers
- Pozidrive screws for flat-head and cross-point screwdrivers
- Lockable in the open position using the padlocks commonly available on the market, so as to ensure safe
maintenance work
- Can be sealed in the closed position to prevent improper use
- Cooling chambers and ventilation slits to facilitate heat dispersion
- Versions with indicator light are available
*Note:
For surge protection device installed at points of the
network where short circuit current exceeds 25A DC
suitable protection must be provided
OTP Enclosed Disconnectors
• IP65 rated
• Grey plastic enclosure
• Standard handle - Red/Yellow (padlockable in the off position)
• Cable entries top and bottom
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9AKK105152A5119
Solar PV
DC
Side
- Switching & Protection
