990-66233D-001

Upstream and Downstream Protection

NOTE: For local directives which require 4-pole circuit breakers: If neutral conductor is expected to carry a high current, due to line-neutral non-linear load, the circuit breaker must be rated according to expected neutral current.
NOTE: For local directives which require 4-pole circuit breakers: Refer to the earthing diagrams for details about neutral connection.

The bypass/output disconnect devices 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 disconnect devices are sized based on end-of-discharge voltage which has been defined as 308 VDC.

Required Upstream Protection for 380/400/415 V (IEC) and Minimum Prospective Phase-To-Earth Short Circuit at the UPS Input/Bypass Terminals

DANGER
Hazard of electric shock, explosion, or arc flash
The upstream overcurrent protective device (and its settings) must be sized to ensure a disconnecting time within 0.07 seconds in case of a short circuit between the input/bypass phase and the UPS.
Failure to follow these instructions will result in death or serious injury.

Compliance is assured with the recommended circuit breaker (and its settings) from the table below.

Required 3-Pole Upstream Protection for 3:3 UPS

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM25D 3P3D, C10B3TM025

NSX100B TM25D 3P3D, C10B3TM025

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

25

25

25

25

25

25

40
Ir

0.8 x In

0.8 x In

0.8 x In

0.7 x In

0.7 x In

0.7 x In

0.9 x In
Im

300

300

300

300

300

300

100
UPS rating 15 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B NSX TM32D 3P3D, C10B3TM032

NSX100B TM32D 3P3D, C10B3TM032 ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

32

32

32

32

32

32

63

Ir

In

In

In

0.9 x In

0.8 x In

0.8 x In

0.8 x In
Im 400 400 400 400 400 400 150
UPS rating 20 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM40D 3P3D, C10B3TM040

NSX100B TM40D 3P3D, C10B3TM040 ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

40

40

40

40

40

40

80

Ir

In

In

In

0.9 x In

0.9 x In

0.8 x In

0.9 x In
Im 500 500 500 500 500 500 250
UPS rating 30 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM63D 3P3D, C10B3TM063 NSX100B TM63D 3P3D, C10B3TM063 ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

63

63

63

63

63

63

125

Ir

 In

 In

 In

0.9 x In

0.8 x In

0.8 x In

0.8 x In
Im 500 500 500 500 500 500 530
UPS rating 40 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM63D 3P3D, C10B3TM080

NSX100B TM63D 3P3D, C10B3TM080 ComPacT NSX160F DC 3P3D+TM160G, C16F3D+C163MG160D*
In

80

80

80

80

80

80

160
Ir In In In

0.9 x In

0.9 x In

0.8 x In

0.9 x In
Im 640 640 640 640 640 640 530

Required 4-Pole Upstream Protection for 3:3 UPS

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM25D 4P3D, C10B6TM025

NSX100B TM25D 4P3D, C10B6TM025

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

25

25

25

25

25

25

40
Ir

0.8 x In

0.8 x In

0.8 x In

0.7 x In

0.7 x In

0.7 x In

0.9 x In
Im

300

300

300

300

300

300

100
UPS rating 15 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM40D 4P3D, C10B6TM040

NSX100B TM40D 4P3D, C10B6TM040

ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

40

40

40

40

40

40

63

Ir

0.8 x In

0.8 x In

0.8 x In

0.7 x In

0.7 x In

0.7 x In

0.8 x In
Im 500 500 500 500 500 500 150
UPS rating 20 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM63D 4P3D, C10B6TM063

NSX100B TM63D 4P3D, C10B6TM063

ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

63

63

63

63

63

63

80

Ir

0.7 x In

0.7 x In

0.7 x In

0.7 x In

0.7 x In

0.7 x In

0.9 x In
Im 500 500 500 500 500 500 250
UPS rating 30 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM80D 4P3D, C10B6TM080

NSX100B TM80D 4P3D, C10B6TM080

ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

80

80

80

80

80

80

125

Ir

0.8 x In

0.8 x In

0.8 x In

0.7 x In

0.7 x In

0.7 x In

0.8 x In
Im 640 640 640 640 640 640 530
UPS rating 40 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 380 400 415 380-415

Circuit breaker type

NSX100B TM100D 4P3D, C10B6TM100

NSX100B TM100D 4P3D, C10B6TM100

ComPacT NSX160F DC 3P3D+TM160G, C16F3D+C163MG160D*
In

100

100

100

100

100

100

160
Ir 0.8 x In 0.8 x In 0.8 x In 0.7 x In 0.7 x In 0.7 x In 0.9 x In
Im 800 800 800 800 800 800 530

Required 3-Pole Upstream Protection for 3:1 UPS – Single Mains

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM63D 3P3D, C10B3TM063

NSX100B TM63D 2P2D, C10M2TM063

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

63

63

63

63

63

63

40

Ir

In

In

In

63 fixed

63 fixed

63 fixed

0.9 x In
Im

500

500

500

500

500

500

100

UPS rating 15 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM80D,3P3D, C10B3TM080

NSX100B TM80D 2P2D, C10M2TM080 ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

80

80

80

80

80

80

63

Ir

In

In

In

80 fixed

80 fixed

80 fixed

0.8 x In
Im

640

640

640

640

640

640

150

UPS rating 20 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM100D,3P3D, C10B3TM100

NSX100B TM100D 2P2D, C10M2TM100 ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

100

100

100

100

100

100

80

Ir

In

In

In

100 fixed

100 fixed

100 fixed

0.9 x In
Im

800

800

800

800

800

800

250

UPS rating 30 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX160B TM160D,3P3D, C16B3TM160 NSX160B TM160D 2P2D, C16M2TM160 ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

160

160

160

160

160

160

125

Ir

In

In

In

160 fixed

160 fixed

160 fixed

0.8 x In
Im

1250

1250

1250

1250

1250

1250

530

Required 3-Pole Upstream Protection for 3:1 UPS – Dual Mains

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM25D 3P3D, C10B3TM025

NSX100B TM63D 2P2D, C10M2TM063

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

25

25

25

63

63

63

40

Ir

0.8 x In

0.8 x In

0.8 x In

63 fixed

63 fixed

63 fixed

0.9 x In
Im

300

300

300

500

500

500

100

UPS rating 15 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B NSX TM32D 3P3D, C10B3TM032

NSX100B TM80D 2P2D, C10M2TM080 ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

32

32

32

80

80

80

63

Ir

In

In

In

80 fixed

80 fixed

80 fixed

0.8 x In
Im

400

400

400

640

640

640

150

UPS rating 20 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM40D 3P3D, C10B3TM040

NSX100B TM100D 2P2D, C10M2TM100 ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

40

40

40

100

100

100

80

Ir

In

In

In

100 fixed

100 fixed

100 fixed

0.9 x In
Im

500

500

500

800

800

800

250

UPS rating 30 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM63D 3P3D, C10B3TM063 NSX160B TM160D 2P2D, C16M2TM160 ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

63

63

63

160

160

160

125

Ir

 In

 In

 In

160 fixed

160 fixed

160 fixed

0.8 x In
Im

500

500

500

1250

1250

1250

530

Required 4-Pole Upstream Protection for 3:1 UPS – Single Mains

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM63D 4P3D, C10B6TM063

NSX100B TM63D 2P2D, C10M2TM063

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

63

63

63

63

63

63

40

Ir

In

In

In

63 fixed

63 fixed

63 fixed

0.9 x In
Im

500

500

500

500

500

500

100

UPS rating 15 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM80D,4P3D, C10B6TM080

NSX100B TM80D 2P2D, C10M2TM080 ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

80

80

80

80

80

80

63

Ir

In

In

In

80 fixed

80 fixed

80 fixed

0.8 x In
Im

640

640

640

640

640

640

150

UPS rating 20 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM100D,4P3D, C10B6TM100

NSX100B TM100D 2P2D, C10M2TM100 ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

100

100

100

100

100

100

80

Ir

In

In

In

100 fixed

100 fixed

100 fixed

0.9 x In
Im

800

800

800

800

800

800

250

UPS rating 30 kVA
  Input/Bypass Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX160B TM160D,4P3D, C16B3TM160

NSX160B TM160D 2P2D, C16M2TM160 ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

160

160

160

160

160

160

125

Ir

In

In

In

160 fixed

160 fixed

160 fixed

0.8 x In
Im

1250

1250

1250

1250

1250

1250

530

Required 4-Pole Upstream Protection for 3:1 UPS – Dual Mains

NOTE: Ir must be set on the circuit breakers during start-up.
UPS rating 10 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM25D 4P3D, C10B6TM025

NSX100B TM63D 2P2D, C10M2TM063

ComPacT NSX100F DC 3P3D+TM40G, C10F3D+C103MG040*
In

25

25

25

63

63

63

40

Ir

0.8 x In

0.8 x In

0.8 x In

63 fixed

63 fixed

63 fixed

0.9 x In
Im

300

300

300

500

500

500

100

UPS rating 15 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B NSX TM40D 4P3D, C10B6TM040

NSX100B TM80D 2P2D, C10M2TM080 ComPacT NSX100F DC 3P3D+TM63G, C10F3D+C103MG063*
In

40

40

40

80

80

80

63

Ir

0.8 x In

0.8 x In

0.8 x In

80 fixed

80 fixed

80 fixed

0.8 x In
Im

500

500

500

640

640

640

150

UPS rating 20 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM63D 4P3D, C10B6TM063

NSX100B TM100D 2P2D, C10M2TM100 ComPacT NSX100F DC 3P3D+TM80G, C10F3D+C103MG080*
In

63

63

63

100

100

100

80

Ir

0.7 x In

0.7 x In

0.7 x In

100 fixed

100 fixed

100 fixed

0.9 x In
Im

500

500

500

800

800

800

250

UPS rating 30 kVA
  Input Bypass/Output Battery
Voltage (V) 380 400 415 220 230 240 380-415

Circuit breaker type

NSX100B TM80D 4P3D, C10B6TM080

NSX160B TM160D 2P2D, C16M2TM160 ComPacT NSX160F DC 3P3D+TM125G, C16F3D+C163MG125D*
In

80

80

80

160

160

160

125

Ir

0.8 x In

0.8 x In

0.8 x In

160 fixed

160 fixed

160 fixed

0.8 x In
Im

640

640

640

1250

1250

1250

530

Recommended Downstream Protection for 380/400/415 V (IEC) for 3:3 UPS

UPS rating Circuit breaker type
10 kVA

IC65H-4P-B 4A

15 kVA

IC65H-4P-B 6A

20 kVA

IC65H-4P-C 6A

30 kVA

IC65H-4P-C 6A

40 kVA

IC65H-4P-B 10A

Recommended Downstream Protection for 380/400/415 V (IEC) for 3:1 UPS

UPS rating Circuit breaker type
10 kVA

IC65H-2P-B 10A

15 kVA

IC65H-2P-B 16A

20 kVA

IC65H-2P-B 20A

30 kVA

IC65H-2P-B 32A