UL-Specific Specifications

Upstream and Downstream Protection for UL

Preconditions for Live Swap of Power Modules

Live Swap of power modules is only allowed under the following preconditions for the UPS installation; Follow either scenario 1 or scenario 2:

Preconditions for UPS installation — scenario 1 with instantaneous override values and trip times set according to the tables below in Recommended Upstream Protection for UL	Preconditions for UPS installation — scenario 2 with alternative breaker configurations supported with GVLOPT011 and breaker with ERMS mode*
Circuit breakers must have instantaneous trip time of maximum 50 ms.	Circuit breakers must be installed for input (unit input breaker UIB) and bypass (static switch input breaker SSIB).
Circuit breakers must have instantaneous override values set according to the table below.	Circuit breakers (UIB, SSIB) must be equipped with NEC 240.87, NFPA70E, IEEE1584, or EN51110-1 compliant ERMS mode.
Circuit breakers must be installed for input (unit input breaker UIB) and bypass (static switch input breaker SSIB).	For parallel systems with three or more UPSs: Circuit breakers must be installed for the output (unit output breaker UOB) of each UPS. The unit output breaker (UOB) is sized as the static switch input breaker (SSIB).
For parallel system with three or more UPSs: Circuit breakers must be installed for the output (unit output breaker UOB) of each UPS. The unit output breaker (UOB) is sized as the static switch input breaker (SSIB).	Circuit breaker (UOB) must be equipped with NEC 240.87, NFPA70E, IEEE1584, or EN51110-1 compliant ERMS mode.
Live Swap is not supported for >65kA_bf installations where current limiting disconnect devices are used to protect the UPS.	GVLOPT011 (Galaxy VL door switch kit) must be installed in the UPS and connected so ERMS mode is set to ON on UIB and SSIB and UOB when the front door of the UPS is opened.
	In ERMS mode, the instantaneous trip current shall be set to 5000 A or less. All time-delay settings shall be set to zero.

Schneider Electric reserves the right to remove the Live Swap label from the product front if the preconditions for scenario 1 or scenario 2 are not met.

DANGER
Hazard of electric shock, explosion, or arc flash Only perform Live Swap of the power modules in UPS installations that follow the preconditions for scenario 1 or scenario 2. Failure to follow these instructions will result in death or serious injury.

Recommended Upstream Protection for UL

The bypass/output breakers are sized based on the nominal current +10%. This is to accommodate either low grid voltage or deviation in cable length between parallel UPSs. The battery breakers are sized based on the end-of-discharge voltage which has been defined as 380 VDC.

NOTE: Overcurrent protection is to be provided by others and marked with its function.

UPS rating	200 kW		250 kW
	Input	Bypass	Input	Bypass
Breaker type	LJF36400CU31X	LJF36400CU31X	LJF36400CU31X	LJF36400CU31X
Ir	320	280	400	360
tr	≥4	≥4	≥4	≥4
li (x In)	≤12	≤12	≤12	≤12

UPS rating	300 kW		350 kW		400 kW
	Input	Bypass	Input	Bypass	Input	Bypass
Breaker type	PJF36060CU31A	PJF36060CU31A	PJF36060CU31A	PJF36060CU31A	PJF36080CU31A	PJF36060CU31A
Ir	480	420	540	480	640	540
tr	≥4	≥4	≥4	≥4	≥4	≥4
li (x In)	≤12	≤12	≤10	≤12	≤10	≤12

UPS rating	450 kW		500 kW
	Input	Bypass	Input	Bypass
Breaker type	PJF36080CU31A	PJF36080CU31A	PJF36080CU31A	PJF36080CU31A
Ir	720	640	800	720
tr	≥4	≥4	≥4	≥4
li (x In)	≤8	≤10	≤8	≤10

Recommended Cable Sizes for UL

DANGER
hazard of electric shock, explosion, or arc flash All wiring must comply with all applicable national and/or electrical codes. The maximum allowable cable size is 600 kcmil for input/bypass/output/neutral/ground cables. The maximum allowable cable size is 500 kcmil for DC cables. Shrink sleeve must be fitted over cable lug crimped zone and must overlap with the cable insulation on all power cables. Failure to follow these instructions will result in death or serious injury.

DANGER

hazard of electric shock, explosion, or arc flash

All wiring must comply with all applicable national and/or electrical codes.
The maximum allowable cable size is 600 kcmil for input/bypass/output/neutral/ground cables.
The maximum allowable cable size is 500 kcmil for DC cables.
Shrink sleeve must be fitted over cable lug crimped zone and must overlap with the cable insulation on all power cables.

Failure to follow these instructions will result in death or serious injury.

The maximum number of cable connections per busbar:

4 on input/output/bypass busbars
4 x 600 kcmil on input/output/bypass busbars
5 x 500 kcmil or 8 x 300 kcmil on DC+/DC- busbars
8 on N busbar
16 on ground busbar

NOTE: Overcurrent protection is to be provided by others.

Cable sizes in this manual are based on Table 310.15 (B)(16) of the National Electrical Code (NEC) with the following assertions*:

90 °C (194 °F) conductors (75 °C (167 °F) termination)
An ambient temperature of 30 °C (86 °F)
Use of copper or aluminum conductors

If the ambient temperature is greater than 30 °C (86 °F), larger conductors are to be selected in accordance with the correction factors of the NEC.

Equipment grounding conductors (EGC) are sized in accordance with the minimum requirements in NEC Article 250.122 and Table 250.122.

NOTE: 100% rated circuit breakers for UIB, UOB, MBB, SSIB. 100% rated breakers for battery breakers.

The bypass/output cables are sized based on the nominal current +10%. This is to accommodate either low grid voltage or deviation in length between parallel UPSs. The battery cables are sized based on end-of-discharge voltage which has been defined as 380 VDC.

Copper

UPS rating	200 kW	250 kW	300 kW	350 kW	400 kW	450 kW	500 kW
Voltage (V)	480	480	480	480	480	480	480
Input phases (AWG/kcmil)	1 x 350	1 x 500	2 x 4/0	2 x 300	2 x 350	2 x 400	2 x 500
Input EGC (AWG/kcmil)	1 x 3	1 x 3	2 x 2	2 x 1	2 x 1/0	2 x 1/0	2 x 1/0
Bypass/output phases (AWG/kcmil)	1 x 300	1 x 400	1 x 600	2 x 250	2 x 300	2 x 350	2 x 400
Bypass EGC/output EGC (AWG/kcmil)	1 x 4	1 x 3	1 x 2	2 x 2	2 x 1	2 x 1/0	2 x 1/0
DC+/DC- (AWG/kcmil) (mm²)	2 x 300	2 x 400	3 x 350	3 x 400	4 x 350	4 x 400	4 x 500
DC EGC (AWG/kcmil)	2 x 1	2 x 1/0	3 x 2/0	3 x 2/0	4 x 3/0	4 x 4/0	4 x 4/0
Inverter midpoint cable for 3-wire parallel (AWG/kcmil)	1 x 350	1 x 500	2 x 4/0	2 x 300	2 x 350	2 x 400	2 x 500

Aluminum

UPS rating	200 kW	250 kW	300 kW	350 kW	400 kW	450 kW	500 kW
Voltage (V)	480	480	480	480	480	480	480
Input phases (AWG/kcmil)	1 x 500	2 x 250	2 x 300	2 x 400	2 x 500	(3 x 300)*	(3 x 400)*
Input EGC (AWG/kcmil)	1 x 1	2 x 1	2 x 1/0	2 x 2/0	2 x 3/0	3 x 3/0	3 x 3/0
Bypass/output phases (AWG/kcmil)	1 x 400	1 x 600	2 x 250	2 x 350	2 x 400	2 x 500	2 x 600
Bypass EGC/output EGC (AWG/kcmil)	1 x 2	1 x 1	2 x 1/0	2 x 1/0	2 x 2/0	2 x 3/0	2 x 3/0
DC+/DC- (AWG/kcmil) (mm²)	2 x 500	3 x 300	3 x 500	4 x 350	4 x 500	5 x 400	5 x 500
DC EGC (AWG/kcmil)	1 x 2/0	3 x 3/0	3 x 4/0	4 x 4/0	4 x 250	5 x 350	5 x 350
Inverter midpoint cable for 3-wire parallel (AWG/kcmil)	1 x 500	2 x 250	2 x 300	2 x 400	2 x 500	3 x 300	3 x 400

Guidance for Organizing Input, Bypass, And Output Cables

The input, bypass, and output cables must be grouped in circuits. On raceways, use one of the two shown cable formations.

Load Sharing in Bypass Operation in a Parallel System

The impedance of the bypass paths need to be controlled in a parallel UPS system. When operating in bypass mode, the parallel load sharing is determined by the total impedance of the bypass path comprising cables, switchgear, static bypass switch, and cable formation.

Parallel System – Dual Mains

NOTICE
Risk of equipment damage To ensure correct load sharing in bypass operation in a parallel system, the following recommendations apply: The bypass cables must be the same length for all UPSs. The output cables must be the same length for all UPSs. The input cables must be the same length for all UPSs in a single mains system. Cable formation recommendations must be followed. The reactance of busbar layout in the bypass/input and output switchgear must be the same for all UPSs. If the above recommendations are not followed the result can be uneven load sharing in bypass and overload of individual UPSs. Failure to follow these instructions can result in equipment damage.

NOTICE

Risk of equipment damage

To ensure correct load sharing in bypass operation in a parallel system, the following recommendations apply:

The bypass cables must be the same length for all UPSs.
The output cables must be the same length for all UPSs.
The input cables must be the same length for all UPSs in a single mains system.
Cable formation recommendations must be followed.
The reactance of busbar layout in the bypass/input and output switchgear must be the same for all UPSs.

If the above recommendations are not followed the result can be uneven load sharing in bypass and overload of individual UPSs.

Failure to follow these instructions can result in equipment damage.

eConversion Limits for Parallel UPS Systems

eConversion requires a minimum load percentage on the UPS for parallel UPS systems. The minimum required load percentages depend on the power cable sizes.

NOTE: For installations using the recommended cable sizes, refer to the Standard eConversion Limits Based on Recommended Cable Sizes table for the minimum load percentages.

Standard eConversion Limits Based on Recommended Cable Sizes

UPS rating	Minimum load %
200 kW	34%
250 kW	27%
300 kW	23%
350 kW	19%
400 kW	17%
450 kW	15%
500 kW	14%

The other prerequisites to use this table include:

The values are calculated based on the use of recommended cable sizes.
Installations with maximum two cables on each phase are supported.
The bypass and output cables must have equal length for all UPSs.

NOTE: For certain installations such as installations with 80% breakers or where other installation methods have been applied to comply with the IEC standard, it is possible that non-recommended cable sizes will be used. For installations using non-recommended cable sizes, refer to the Standard eConversion Limits Based on Non-recommended Cable Sizes table for the voltage ratings percentages.

Standard eConversion Limits Based on Non-recommended Cable Sizes

UPS rating	Minimum load %
200 kW	50%
250 kW	40%
300 kW	34%
350 kW	29%
400 kW	25%
450 kW	22%
500 kW	20%

The other prerequisites to use this table include:

The values are calculated based on the scenario of using non-recommended cable sizes.
Installations with three or four cables on each phase are supported.
The bypass and output cables must have equal length for all UPSs.

Recommended Bolt and Lug Sizes for UL

NOTICE
risk of equipment damage Use only UL approved compression cable lugs. Failure to follow these instructions can result in equipment damage.

Copper

Cable size	Bolt size	Cable lug type (one hole)	Cable lug type (two hole NEMA)	Crimping tool	Die
1/0 AWG	M10x35mm	LCB1/0-12-X	LCC1/0-12-X	CT-930	CD-920-1/0 Pink P42
2/0 AWG	M10x35mm	LCB2/0-12-X	LCC2/0-12-X	CT-930	CD-920-2/0 Black P45
3/0 AWG	M10x35mm	LCB3/0-12-X	LCC3/0-12-X	CT-930	CD-920-3/0 Orange P50
4/0 AWG	M10x35mm	LCB4/0-12-X	LCC4/0-12-X	CT-930	CD-920-4/0 Purple P54
250 kcmil	M10x35mm	LCB250-12-X	LCC250-12-X	CT-930	CD-920-250 Yellow P62
300 kcmil	M10x35mm	LCB300-12-X	LCC300-12-X	CT-930	CD-920-300 Red P66
350 kcmil	M10x35mm	LCB350-12-X	LCC350-12-X	CT-930	CD-920-350 Red P71
400 kcmil	M10x35mm	LCB400-12-X	LCC400-12-6	CT-930	CD-920-400 Blue P76
450 kcmil	M10x35mm	—	LCC450-12-6	CT-930	—
500 kcmil	M10x35mm	LCB500-12-X	LCC500-12-6	CT-930	CD-920-500 Blue P87

Aluminum

Cable size	Bolt size	Cable lug type (one hole)	Cable lug type (two hole NEMA)	Crimping tool	Die
1/0 AWG	M10x35mm	LAA1/0-12-5	LAB1/0-12-X	CT-930	CD-920-1/0 Pink P42
2/0 AWG	M10x35mm	LAA2/0-12-5	LAB2/0-12-5	CT-930	CD-920-2/0 Black P45
3/0 AWG	M10x35mm	LAA3/0-12-5	LAB3/0-12-5	CT-930	CD-920-3/0 Orange P50
4/0 AWG	M10x35mm	LAA4/0-12-5	LAB4/0-12-5R	CT-930	CD-920-4/0 Purple P54
250 kcmil	M10x35mm	LAA250-12-5	LAB250-12-5	CT-930	CD-920-250 Yellow P62
300 kcmil	M10x35mm	LAA300-12-2	LAB300-12-2	CT-930	CD-920-300 Red P66
350 kcmil	M10x35mm	LAA350-12-2	LAB350-12-2R	CT-930	CD-920-350 Red P71
400 kcmil	M10x35mm	—	LAB400-12-2	CT-930	CD-920-400 Blue P76
500 kcmil	M10x35mm	LAA500-12-2	LAB500-12-2R	CT-930	CD-920-500 Blue P87