Disconnect Switch

EHL station class hookstick medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV or 38 kV
  • Rated continuous current: 600 A, 900 A, or 1,200 A
  • Lightning-impulse (BIL): 110, kV, 150 kV, or 200 kV
  • Equipped with a Saf-T-Gap interrupter, the EHL combines the advantages of the EH with the capabilities of a proven interrupter. The plug-in Saf-T-Gap
    interrupter is simple to install and remove with a standard shotgun stick.
  • On-load disconnection and isolation of substation equipment.

EHTT station class hookstick medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV or 38 kV
  • Rated continuous current: 600 A, 900 A, or 1,200 A
  • Lightning-impulse (BIL): 110, kV, 150 kV, or 200 kV
  • Utilizing the advantages of the type EH switch in a tandem-transfer configuration, the EHTT provides an effective and safer means to redirect power when
    bypassing is required.
  • Substation tandem-transfer switching.

B-1 regulator bypass medium-voltage disconnect switches

  • Maximum design voltage: 15 kV, 27 kV, or 38 kV
  • Rated continuous current: 600 A, 900 A, or 1,200 A
  • Lightning-impulse (BIL): 110 kV, 150 kV, or 200 kV
  • A simple and rugged, three-blade, disconnect switch, the type B-1 encompasses a major safety feature in that the bypass blade can be visually checked to
    verify that it is open.
  • Regulator bypassing to reduce the impact of equipment maintenance on network reliability.

CMR medium-voltage compact modular distribution reclosers

  • Maximum design voltage: 17.5 kV-38 kV
  • Rated short-time withstand current: 12.5 kA up to 27 kV; 6.3 kA for 38 kV
  • Rated continuous current: 630 A
  • Lightning-impulse (BIL): up to 170 kV
  • As a direct substitute for traditional, single-phase, hydraulic reclosers, the type CMR allows for reduced maintenance with only the rechargeable battery pack
    having to be replaced. Wireless communications enables in-service reconfiguration and downloading of the event log and load profile.

E Medium-voltage disconnects

  • Maximum design voltage: 15 kV or 25 kV
  • Rated continuous current: 600 A or 900 A
  • Lightning-impulse (BIL): 110 kV or 150 kV
  • A distribution class switch that meets power class standards up to 900 A. Applicable for use on all circuits up to 900 A. When fitted with the Saf-T-Gap
    interrupter, the type E can be used for transformer magnetizing, line charging, and loop-switching currents as well as emergency load dropping.
  • Power class distribution interrupting where clamp mounting is possible.

EF medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV, or 38 kV
  • Rated continuous current: 600 A or 900 A
  • Lightning-impulse (BIL): 110 kV or 150 kV
  • Crossarm mounted with either through bolts or optional clamping arrangement, the type EF disconnect is a robust, securely mounted switch for disconnection
    at a crossarm or frame assembly where a clamp-mounting assembly is suitable.
    s a robust, securely mounted switch for disconnection

EH station class hookstick medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV or 38 kV
  • Rated continuous current: 600 A, 900 A, 1,200 A, or 2,000 A
  • Lightning-impulse (BIL): 110, kV, 150 kV, or 200 kV
  • Features a square-tubular blade for exceptional mechanical rigidity and electrical conductivity.
  • Off-load disconnection and isolation of substation equipment.

FusesaverTM outdoor overhead medium-voltage circuit breakers

  • Maximum design voltage: 15 or 27 kV
  • Rated short-time withstand current: 4 kA or 6.3 KA
  • Rated continuous current: 100 A or 200 A
  • Lightning-impulse (BIL): 110 kV or 125 kV
  • As the world’s fastest medium-voltage outdoor vacuum circuit breaker, Fusesaver circuit breaker reduces the impact of temporary faults on lateral lines. Its
    sub-cycle operating time and wireless communications help utilities increase network reliability while minimizing operating costs of overhead medium-voltage networks.
  • Saves fuses from blowing due to transient faults or completely replaces fuses. Cal Fire exempt for use in wildfire-prone regions.

LER medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV, or 38 kV
  • Rated continuous current: 600 A or 900 A
  • Lightning-impulse (BIL): 110 kV or 150 kV
  • Featuring a sturdy and well-ventilated square-tubular copper blade and high-pressure silver contacts, the type LER line-tap disconnect provides superior current-carrying characteristics. Meets the requirements of a wide array of cable-riser and cross-over applications.
  • Line-tap or cross-over disconnection.

SDR medium-voltage distribution reclosers

  • Maximum design voltage: 15 kV, 27 kV, or 38 kV
  • Rated short-time withstand current: 12.5 kA or 16 kA
  • Rated continuous current: 630 A or 800 A
  • Lightning-impulse (BIL): 110 kV, 150 kV, or 170 kV
  • Single-phase, triple-single, or three-phase types available
  • Combining the latest technology in vacuum switching and electronic control, the type SDR distribution recloser is based on decades of experience in circuit breaker design. Customizable control platforms based on either the Siemens or SEL recloser relays contribute to the best operational fit possible.
  • Advanced feeder protection and fault location, isolation, and service restoration (FLISR) schemes.

SE and SEL medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV, or 38 kV
  • Rated continuous current: 600 A, 900 A, or 1,200 A
  • Lightning-impulse (BIL): 150 kV or 200 kV
  • Ruggedly built, the types SE and SEL in-line disconnects splice into the line. By securely supporting the conductor while providing the required insulation gap, line maintenance can be performed rapidly and safely.
  • In-line disconnection under tension for rapid and safer line maintenance.

SER medium-voltage disconnects

  • Maximum design voltage: 15 kV, 25 kV, or 38 kV
  • Rated continuous current: 600 A or 900 A
  • Lightning-impulse (BIL): 110 kV, 150 kV or 200 kV
  • A single-insulator disconnect, the type SER is rugged and reliable where dependable operation in a lightweight package is required. Featuring a sturdy and
    well-ventilated square-tubular copper blade and high-pressure silver contacts, these switches have superior current-carrying characteristics.
  • Cut-out, mounted disconnection.