KYN28-12 Metal-Clad Withdrawable Vacuum Circuit B | RFQ Sourcing Details

Product overview KYN28-12 armored metal-enclosed switchgear is designed for receiving and distributing electrical energy while supporting circuit control, monitoring, and protection. The stated operating range is 3.6–12 kV, three-phase AC at 50 Hz.

It can be configured for single-bus, sectionalized single-bus, or double-bus systems. Construction and configuration The assembly consists of a fixed cabinet and a withdrawable handcart.

Its functional areas include a bus compartment, circuit-breaker handcart compartment, cable compartment, and relay/instrumentation compartment. The cabinet can be equipped with a vacuum circuit-breaker handcart or a fixed load switch.

Listed connection schemes include overhead incoming or outgoing lines and cable outlets. Back-to-back and face-to-face double-row installation arrangements are also described. The external enclosure is rated IP4X. The circuit-breaker compartment or isolation area is rated IP2X when open.

Published components and provisions include busbars, stationary , a grounding switch, current transformer, grounding main bus, secondary plug, heater, pressure-relief device, cable space, and optional lightning arrester positions, subject to the selected design.

Published electrical data For the 3–12 kV parameter set, listed circuit-breaker and cabinet rated-current options are 630, 1250, 1600, 2000, 2500, and 3150 A. Listed 4-second short-time withstand-current options are 16, 20, 25, 31.5, 40, and 50 kA.

Peak withstand-current and short-circuit making-current options are 40, 50, 63, 80, 100, and 125 kA. Listed short-circuit breaking-current options extend from 16 to 50 kA. A separate published parameter set identifies a 24 kV version with circuit-breaker and switchgear rated-current options up to 4000 A.

Because this differs from the KYN28-12 product designation and primary 3.6–12 kV description, buyers should obtain a configuration-specific technical schedule before treating the 24 kV values as applicable to the requested panel.

Service conditions The stated normal service environment is an ambient temperature from -10°C to 40°C, altitude up to 1000 m, daily average relative humidity no higher than 95%, monthly average relative humidity no higher than 90%, and seismic intensity no higher than 8 degrees.

The installation environment should be free from fire or explosion hazards, serious pollution, chemical corrosion, and violent vibration. Conditions outside these limits require an agreed technical solution.

Standards and service information The states conformity with IEC 298, IEC 694, GB 3906, DIA04, and DIN VDE 0670 requirements and describes an anti-misoperation function. CCC certification is also listed.

Buyers should request current, configuration-specific certificates and test documents because editions, test scope, and applicability are not identified in the available facts. Customization is listed as available, including structural adjustment and combination configurations.

A two-year warranty is stated, together with online installation and commissioning assistance and a stated response with proposed solutions within one working day after normal-use feedback.

Procurement confirmation Before ordering, confirm the required system voltage, continuous current, short-circuit rating, bus arrangement, incoming and outgoing scheme, circuit-breaker selection, protection and metering functions, auxiliary supply, interlocking logic, internal component brands, panel dimensions, and required standards.

Also request approved drawings, a final data sheet, a protection single-line diagram, routine-test records, and the exact scope of accessories and spare parts.

The listed package dimensions of 100 × 90 × 175 cm and gross weight of 500 kg should be treated as listing-level shipment data and verified for the final cabinet configuration.