BRUSH Hz 50/60 Rated 3 sec Short-Time Current kA 25/31.5 Rated Peak Making Current kA 65/82 Ambient Air Temperature °C -50 - +50 Degree of Protection IP45 Weight kg 800 HORIZON 38kV Outdoor The Horizon fills the market need for outdoor, ground-mounted circuit breakers and features the award-winning magnetic actuator technology. Designed for a 38kV application, the Horizon can be used with other products from BRUSH Switchgear to provide cost-effective and compact substations or breathe new life into existing substations by replacing old and obsolete equipment. Key Features • Superior, proven technology with minimal maintenance • Vacuum interruption in an SF6 filled, controlled environment (0.5 bar gauge) • Dead tank construction suitable for live or dead tank applications • Internal arc containment • Generous accommodation for current transformers • The lightweight aluminium tank makes the Horizon easier to transport and install • The silicone rubber bushings are resistant to damage from vandalism or mishandling and have an extended creepage of 1550mm • Cubicle with space for ancillary equipment and option for integrated control and protection relay • Optional Adjustable Legs version TRUST. WELL EARNED. Ratings Maximum System Voltage kV 38 Continuous Current A 1250/2000 Interrupting Current kA 25/31.5 Rated Operating Sequence O - 0.3sec - CO - 15sec - CO Impulse Voltage Withstand kV 170/200 Power Frequency Withstand Dry kV 1min 80 Power Frequency Withstand Wet kV 10secs 80 Rated Gas Pressure for above Atmospheric Control Voltage V dc 110/125 (48 & 220 Optional) Rated Frequency ANSI Standards: • ANSI C37.06 • ANSI C37.09

Horizon Mechanical Features 1 The bushings consist of a conductor with over moulded EPDM core giving a gas tight seal and impact resistance. Removable self-cleaning, hydrophobic silicone sheds offer very high pollution resistance with no maintenance. Current Transformers are located within the bushing design, external to the gas enclosure, to allow for easy changing/addition. Lightweight aluminium housing, secured by stainless steel bolts and incorporating rubber ‘O’ ring seals. Pressure-relief disc, to comply with IEC 60298, offering the highest levels of safety. Mechanical ON/OFF position indication...