Entogo
Switchgear & Circuit Breakers
Choose switchgear by voltage, switching function and assembly construction.
Separate a complete switchgear assembly from a standalone outdoor circuit breaker. Specify system voltage, continuous and fault current, protection, control supply, service access and insulation medium. Medium-voltage panels, low-voltage boards and outdoor breakers are coordinated equipment, each with its own selection criteria.
Switchgear & Circuit Breakers
Dead Tank Circuit Breaker
Entogo supplies outdoor dead-tank circuit breakers for substation switching and protection. A 72.5 kV SF6 configuration is a reference enquiry point; continuous current, breaking duty, insulation and site conditions are specified together.
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Switchgear & Circuit Breakers
Metal-Clad Switchgear (Drawout MV)
Metal-clad medium-voltage switchgear with drawout vacuum circuit breakers for 5/15/27/38 kV class systems, 60 Hz — compartmentalized, insulated-bus construction up to 4000 A and 50 kA, with optional arc-resistant rating. Designed to ANSI/IEEE C37.20.2; UL/CSA certifiable.
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Switchgear & Circuit Breakers
Metal-Enclosed Load-Interrupter Switchgear
Metal-enclosed load-interrupter switchgear for 15 / 27 / 38 kV class medium-voltage systems, 60 Hz — fixed-mounted load-break switches with power-fuse protection in a compact steel enclosure, for compact substations, primary service entrance and MV isolation. Designed to ANSI/IEEE C37.20.3; UL / CSA certifiable.
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Switchgear & Circuit Breakers
Pad-Mounted Switchgear (Ring Main Unit)
Pad-mounted load-break switchgear (ring main unit) for underground medium-voltage distribution — 15/25/38 kV class, 200/600 A, dead-front, with SF6 or SF6-free fault-interrupting ways for utility loops, campuses and data centers, 60 Hz. Designed to IEC 62271-200 and ANSI C57.12.28; UL/CSA certifiable.
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Switchgear & Circuit Breakers
Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free
Compact gas-insulated switchgear (GIS) using vacuum interrupters and an eco-friendly (SF6-free) insulating gas at near-zero gauge pressure — for space-constrained 15 / 27 / 38 kV class medium-voltage distribution, 60 Hz, with built-in online monitoring and SCADA. Designed to IEEE C37.20.9; UL / CSA certifiable.
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Switchgear & Circuit Breakers
Modular Low-Voltage Switchgear / MCC
Modular drawer-type low-voltage switchgear and motor control center for ≤600 V, 60 Hz three-phase systems — standardized, mechanically interlocked withdrawable drawers up to 5000 A and 100 kAIC. Designed to UL 1558 and UL 845; UL/CSA certifiable.
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Switchgear & Circuit Breakers
Low-Voltage Drawout Switchgear
Low-voltage drawout (withdrawable) switchgear for ≤600 V, 60 Hz distribution, motor control and power-factor correction — up to 5000 A and 100 kAIC, with drawout power circuit breakers, for data centers and industry. Designed to UL 1558/ANSI C37.20.1; UL/CSA certifiable.
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Switchgear & Circuit Breakers
Low-Voltage Switchboard (UL 891)
A dead-front low-voltage switchboard for ≤ 600 V, 60 Hz service-entrance and distribution — up to 6000 A and 200 kA, with group-mounted molded-case or insulated-case breakers, for commercial, institutional and industrial buildings. Designed to UL 891; UL (cULus) / CSA certifiable.
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Switchgear & Circuit Breakers
Low-Voltage Switchgear & Motor Control Center
A combined low-voltage switchgear and motor control center for ≤600 V, 60 Hz systems — a power-distribution section with drawout motor-control units for distribution, motor control and lighting up to 3150 A. Designed to UL 1558 and UL 845; UL/CSA certifiable.
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Design references
Power & Distribution
Available fault current and equipment short-circuit ratings: what to calculate and specify
Available fault current is the maximum current a bolted short circuit can push through a system at a point. Every breaker, switchboard, and control panel needs a short-circuit current rating at least equal to it, and non-dwelling service equipment must be field-marked with the value under NEC 110.24.
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Power & Distribution
Metal-clad vs. metal-enclosed switchgear: how to choose
Metal-clad switchgear uses drawout breakers and grounded metal barriers between every compartment; metal-enclosed interrupter switchgear is simpler and built for lower fault duty. Here is how North American buyers match construction class, voltage, and fault duty to the application.
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Power & Distribution
Gas-insulated vs. air-insulated switchgear: how to choose
Gas-insulated switchgear seals live parts in gas for a compact, low-maintenance lineup; air-insulated switchgear stays larger but fully serviceable and gas-free. The right choice turns on footprint, environment, voltage class, and tightening SF6 rules.
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For Canadian and US projects, include the utility specification, service frequency and required approvals. State whether the order is for the transformer alone or an integrated equipment package.
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