Hookstick Switches

Reliable and Trouble Free Performers

The Southern States, hookstick operated disconnect switches have been proven outstanding and trouble-free performers in installations all over  the country. They may be used at any place on a distribution substation circuit where the utmost reliability is required.  All models meet or exceed ANSI standards for this type of equipment. Available models include the standard single pole hookstick, Regulator Bypass Switch and Tandem Transfer Switch.

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A_set_of_three_pbo-1_23_kv_1200_a_vertically_mounted_hookstick_switches_doing_vacuum_circuit_breaker_isolation_at_city_of_west_plains_mo_s_meadow_vista_sub

Three PBO-1 23 kV, 1200 A vertically mounted hookstick switches doing vacuum circuit breaker isolation

  • A_set_of_three_pbo-1_23_kv_1200_a_vertically_mounted_hookstick_switches_doing_vacuum_circuit_breaker_isolation_at_city_of_west_plains_mo_s_meadow_vista_sub
  • A_set_of_three_pbor-1_23_kv_1200_a_regulator_bypass_switches_at_city_of_west_plains_mo_s_meadow_vista_sub
  • Angled_shot_of_set_of_three_pbo-1_23_kv_1200_a_hookstick_switch_at_city_of_west_plains_mo_s_meadow_vista_sub
  • Close_up_profile_view_of_vertically_mounted_pbo-1v_15-1200_switches_at_a_nevada_power_company_substation
Switch Type Application Max Voltage (kV) Continuous Current (A)
Disconnect Isolation 8.3 - 170 600 A, 1200 A, 2000 A
Bypass Regulator Bypass 8.3 - 34.5 600 A, 1200 A
Tandem Transfer Transfer loads 8.3 - 34.5 600 A, 1200 A
  • Safe, low effort opening and closing.
  • Blade deflection resistance allows it to be closed from angles to either side.
  • Designed to either 30º temperature rise standards or ANSI temperature rise standards. 
  • Hard drawn bus copper blades
  • Postive latching operation
Maximum Voltage (kV) Model Continuous Current 30o Temp Rise ANSI Temp Rise Short Time Current (kA) Peak Withstand (kA)
8.3 PBO 600 X   25 65
15.5 PBO 1200 X   38 99
27 PBO-1 1200   X 38 99
38 PBO 2000 X   63 136
48.3 PBO-1 2000   X 50 164
123 PBO 600 X   25 65
145 PBO 1200 X   25 65
170            
Maximum Voltage (kV) Model Continuous Current ANSI Temp Rise 30oTemp Rise Short Time Current (kA) Peak Withstand (kA)
8.3 PBO-R 600   X 25 65
15.5 PBO-R 1200   X 38 100
25.8 PBO-R-1 1200 X   38 100
38            
Maximum Voltage (kV) Model Continuous Current ANSI Temp Rise 30o Temp Rise Short Time Current (kA) Peak Withstand (kA)
8.3 PBO-T 600   X 25 65
15.5 PBO-T 1200   X 38 100
25.8 PBO-T-1 1200 X   38 100
38            

Product Information

Product Information

Isolation

Circuit Isolation

Regulator Bypass

Circuit Isolation

Transfer loads without interrupting circuit

Circuit Isolation

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