24kv 630A 1250A Top Bus-Bar System European Screen Bus-Bar for Rmu

• Customization: Available
• Standard: GB, EN, China GB Code, JIS Code, TEMA, ASME
• Material: Sillcone
• Model NO.: 24KV Top Bus-bar
• Transport Package: Box
• Trademark: ANDIPU
• Origin: China
• HS Code: 8535900000
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Introduction
The 24kV top bus-bar system (630A/1250A screen bus-bar system) is a fully insulated, fully sealed bus-bar connection solution for the top or bottom connection of ring main unit (RMU) switches. The product series includes:

• Front cross connector (APQ5 24kV/630A(1250A)) - European-style cross connector supporting both 630A and 1250A, for multi-directional bus-bar connections.
• Screen bus-bar (AMG 24kV/1250A) - Matching screened bus-bar for power transmission between cabinets.

The system is compatible with ABB, Siemens, Driescher and other major RMU brands, matching the standard socket of load switches. Both screened and unscreened versions are available. It provides fully sealed, fully insulated connection for load switches, completely avoiding the critical defects caused by exposed high voltage in bad weather. RMUs assembled with cross connectors and bus-bar connectors offer low investment and high reliability. The length of the bus-bar can be customized according to customer requirements. Various center distances L1 are available (120, 240, 374, 849, 215mm, etc.).
Core Parameters

Parameter	Value
Rated voltage	24kV (12/24kV)
Rated current	630A / 1250A (two options)
Product types	Front cross connector (APQ5 24kV/630A(1250A)), Screen bus-bar (AMG 24kV/1250A)
Shielding type	Screened / Unscreened
Compatible switches	ABB, Siemens, Driescher RMU load switches
Connection method	Plug-in, matching load switch standard socket
Center distance L1	120mm, 240mm, 374mm, 849mm, 215mm (customizable)
Material	Conductive/insulating silicone rubber (or EPDM); copper/aluminum alloy inner core
Power frequency withstand voltage	65kV / 5min
Lightning impulse withstand voltage	125kV (peak)
Partial discharge level	≤10pC @ 24kV
Protection degree	IP67 (when mated)
Ambient temperature	-40ºC ~ +125ºC
Applicable standards	EN 50180/50181, IEEE 386, GB/T 12706.4

Application Scenarios
The 24kV top bus-bar system is widely used in 24kV medium-voltage RMUs and cable branch boxes as a bus-bar connection solution between switchgear:

1. RMU top/bottom connection - For bus-bar series connection or branching between multiple RMU units.
2. Fully sealed load switch connection - Replaces traditional exposed copper bars, avoiding hazards from bad weather.
3. Cable branch boxes with switches - For bus-bar connections between load switches inside branch boxes.
4. Modular RMU assembly - The preferred solution for assembling RMUs with low cost and high reliability.
5. Dual current rating - 630A for branch circuits, 1250A for main lines or high-capacity circuits.
6. Compact switchgear - Fully insulated design allows compact arrangement, saving space.
7. Outdoor and harsh environments - Fully sealed, fully screened design resists condensation, pollution, and is maintenance-free.