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Low-voltage Switchgear

Low-voltage Motor Control Center Type D-MCC

IEC61439 - 1/2 - compliant, space-saving and advanced utility and usability to meet the needs of the times.

Enabling operation and maintenance from the front through revised part layout and installation method.
Front operation/maintenance is possible, making this product optimal for wall mounting in general power rooms and package house-type power rooms*.
The withdrawable unit is equipped with an autoconnect function for the main circuit and control circuit.
1. LV- Switchgear
2. Controlgear

*Needs to be at least 50mm from the wall　

By using the same frame for individual housings 1. LV-Switchgear through 3. Inverter panelboard, we have reduced the footprint compared to our conventional products with identical specifications. Footprint has been reduced by 45%.

Each panel stores up to 40 of the newly-developed compact units.
2. Controlgear
Busbar energizing current has been improved by 2-fold due to a new one-sided structure, and up to 6 units can be stored on each panel.
3 Inverter panelboard

Also responds flexibly to changes in unit rating on the shop floor.
2.Controlgear (Withdrawable unit)
3.Inverter panelboard (1/6 (DL6), 1/4 (DL4), 1/2 (DL2) unit)

Complies with internal separation Form 4b of IEC 61439-1/2
1.LV- Switchgear 2.Controlgear
Complies with internal separation Form 2b of IEC 61439-1/2
3.Inverter panelboard
Supports IEC TR61641 Internal Arc Fault (Option)Arcing class classification: Arcing class B
1.LV- Switchgear 2.Controlgear

EMC Type-B (EMC-B) not only enables direct operations and collection of operation-related information, but also features a transmission system making it possible to control the operations of devices and equipment remotely and collect information thereof. (Complies with the latest IEC61439-1)
EMC Type-B (EMC-BA-PRO) can perform diagnosis to determine the level of deterioration of a motor’s mechanical components (bearing faults, etc.) and electrical components (layer short faults).
Communication (Option)
2.Controlgear⇒CDL transmission system, Modbus®-RTU transmission system
3.Inverter panelboard⇒CDL transmission system

The visibility of the MCCB operation panel and color tone/writing on LED displays has been improved, making it possible to visually confirm operating status even from a distance.

Items	Switchgear	Controlgear	Inverter panelboard
Applied standard	IEC61439-1/2
Motor control center construction	Front access
Insulation voltage	1000V
Busbar current (Horizontal)	800A, 1000A, 1200A, 1600A, 2000A, 2500A, 3200A, 4000A
Voltage	Up to 690V
Bus system	3φ3W/3φ4W
Short-time withstand current (Horizontal busbar, Vertical busbar)	Up to 85kA/1sec
Front of internal separation	4b ^(*2）	4b	2b
Frequency	50/60Hz
Degree of protection	Up to IP43		Up to IP41
Unit Connection method Main circuit	Automatic type	Automatic type/Fixed type	Fixed type
Unit Connection method Control circuit	Automatic type	Automatic type/Fixed type	Fixed type
Insulated busbar^(*1)	Horizontal busbar	Horizontal busbar/Vertical busbar	Horizontal busbar
Earth busbar	Horizontal	Horizontal/Vertical^（*3）	Horizontal
Internal arc withstand current^(1)(4)	85kA/0.3sec at 690V	65kA/0.3sec, (85kA/0.3sec^（*8） )at 480V	-
Arcing class classification^{（1）（4）}	Arcing class B		-
Unit capacity	By the unit capacity of the following
Location	indoor
Height^（*5）	2370mm		2200mm
Depth^（*5）	600mm
Width^（*5）	800 to 1300mm	1000mm

*1 Option
*2 The standard (From 4b) applies to "Incomer". "Outgoing feeder" and "Bus tie" (includes Bus riser).
*3 Only Vertical Earth busbar is optional. Horizontal Earth busbar is a standard feature.
*4 Applied standard: IEC TR61641
*5 Please refer to P10 (2)Space-saving structure installation dimensions of the product catalog.
*8 To be released later.