Page 14 - GE Critical Power Produkte | Heisener Electronics
Kontaktieren Sie uns
SalesDept@heisener.com +86-755-83210559 ext. 813
Language Translation

* Please refer to the English Version as our Official Version.

GE Critical Power Produkte

Aufzeichnungen 1.401
Page  14/51
Bild
Teilenummer
Hersteller
Beschreibung
Paket
Lager
Anzahl
J2007001L004
GE Critical Power

SHELF

  • Accessory Type: Shelf
  • For Use With/Related Products: CP Rectifier Modules
Paket: -
Lager2.952
J85480S1L20
GE Critical Power

POWER LINE SHELVE 19"

  • Accessory Type: Power Shelf
  • For Use With/Related Products: Compact Power Line Series Power Supplies
Paket: -
Lager2.160
CC109145331
GE Critical Power

EDGE CONTROLLER (3 ALARM INPUTS)

  • Accessory Type: Edge Controller
  • For Use With/Related Products: Compact Power Line Series Power Supplies
Paket: -
Lager2.214
J85480S1L20Z
GE Critical Power

4 SLOT SHELF

  • Accessory Type: Power Shelf
  • For Use With/Related Products: Compact Power Line Series Power Supplies
Paket: -
Lager5.724
CCR0512FPSXXZ01A
GE Critical Power

AC/DC CONVERTER 12V 500W

  • Type: Front End
  • Number of Outputs: 1
  • Voltage - Input: 90 ~ 264 VAC
  • Voltage - Output 1: 12V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 42A
  • Power (Watts): 500W
  • Applications: ITE (Commercial)
  • Voltage - Isolation: 3kV (3000V)
  • Efficiency: 92%
  • Operating Temperature: -20°C ~ 55°C (With Derating)
  • Features: Adjustable Output, Hot Swappable, I2C? Interface, Load Sharing, PFC, PMBus?, Remote On/Off, Remote Sense, Standby Output
  • Mounting Type: Chassis Mount
  • Size / Dimension: 10.40" L x 4.39" W x 0.89" H (264.2mm x 111.5mm x 22.6mm)
Paket: -
Lager4.428
QPW025A0F641-HZ
GE Critical Power

DC/DC CONVERTER 3.3V 83W

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 3.3V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 25A
  • Power (Watts): 83W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 92.5%
  • Mounting Type: Through Hole
  • Package / Case: 10-DIP Module, 9 Leads, 1/4 Brick
  • Size / Dimension: 2.28" L x 1.45" W x 0.48" H (57.9mm x 36.8mm x 12.2mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 10-DIP Module, 9 Leads, 1/4 Brick
Lager5.850
AXH010A0FZ
GE Critical Power

DC/DC CONVERTER 3.3V 10A 33W

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 3V
  • Voltage - Input (Max): 5.5V
  • Voltage - Output 1: 3.3V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 10A
  • Power (Watts): 33W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 95%
  • Mounting Type: Through Hole
  • Package / Case: 11-SIP Module
  • Size / Dimension: 2.00" L x 0.32" W x 0.50" H (50.8mm x 8.1mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 11-SIP Module
Lager6.372
AXA010A0A3Z
GE Critical Power

DC/DC CONVERT 1.2V-5.5V 10A 55W

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 10V
  • Voltage - Input (Max): 14V
  • Voltage - Output 1: 1.2 ~ 5.5 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 10A
  • Power (Watts): 55W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 95%
  • Mounting Type: Through Hole
  • Package / Case: 11-SIP Module
  • Size / Dimension: 2.00" L x 0.32" W x 0.50" H (50.8mm x 8.1mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active High
Paket: 11-SIP Module
Lager6.246
SW003A5F961Z
GE Critical Power

DC/DC CONVERTER 3.3V 3.5A 12W

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 3.3V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 3.5A
  • Power (Watts): 12W
  • Voltage - Isolation: 2.25kV (2250V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 85%
  • Mounting Type: Through Hole
  • Package / Case: 6-DIP Module
  • Size / Dimension: 1.10" L x 0.96" W x 0.34" H (27.9mm x 24.4mm x 8.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 6-DIP Module
Lager2.520
QW010A0A1Z
GE Critical Power

DC/DC CONVERTER 5V 10A 50W

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 5V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 10A
  • Power (Watts): 50W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 92%
  • Mounting Type: Through Hole
  • Package / Case: 8-DIP Module
  • Size / Dimension: 2.28" L x 1.45" W x 0.34" H (57.9mm x 36.8mm x 8.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 8-DIP Module
Lager3.528
QRW040A0Y641-BHZ
GE Critical Power

DC/DC CONVERTER 1.8V 40A 72W

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 1.8V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 40A
  • Power (Watts): 72W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 87%
  • Mounting Type: Through Hole
  • Package / Case: 10-DIP Module
  • Size / Dimension: 2.29" L x 1.46" W x 0.37" H (58.2mm x 37.1mm x 9.4mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 10-DIP Module
Lager2.304
EQW040A0S1R01Z
GE Critical Power

CONVERTER DC/DC 1V 40W OUT T/H

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 1 ~ 12 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 40A
  • Power (Watts): 40W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 83.2%
  • Mounting Type: Through Hole
  • Package / Case: 8-DIP Module, 1/8 Brick
  • Size / Dimension: 2.28" L x 0.90" W x 0.34" H (57.9mm x 22.8mm x 8.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 8-DIP Module, 1/8 Brick
Lager6.876
AXH010A0X-SRZ
GE Critical Power

CONVERTER DC/DC 3.63V 10A OUT

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 3V
  • Voltage - Input (Max): 5.5V
  • Voltage - Output 1: 0.8 ~ 3.6 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 10A
  • Power (Watts): 36W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 95%
  • Mounting Type: Surface Mount
  • Package / Case: 6-SMD Module
  • Size / Dimension: 1.30" L x 0.43" W x 0.33" H (33.0mm x 10.9mm x 8.3mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active High
Paket: 6-SMD Module
Lager3.636
QW050B71
GE Critical Power

CONVERTER DC/DC 12V 50W OUT

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 12V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 4.17A
  • Power (Watts): 50W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP
  • Operating Temperature: -40°C ~ 100°C
  • Efficiency: 84%
  • Mounting Type: Through Hole
  • Package / Case: 8-DIP Module
  • Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 8-DIP Module
Lager6.642
QRW025A0M1
GE Critical Power

CONVERTER DC/DC 1.5V 38W OUT T/H

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 1.5V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 25A
  • Power (Watts): 38W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 87%
  • Mounting Type: Through Hole
  • Package / Case: 10-DIP Module, 1/4 Brick
  • Size / Dimension: 2.28" L x 1.45" W x 0.38" H (57.9mm x 36.8mm x 9.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 10-DIP Module, 1/4 Brick
Lager6.570
hot QHW075F1
GE Critical Power

CONVERTER DC/DC 3.3V 50W OUT

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 3.3V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 15A
  • Power (Watts): 50W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP
  • Operating Temperature: -40°C ~ 100°C
  • Efficiency: 81%
  • Mounting Type: Through Hole
  • Package / Case: 8-DIP Module
  • Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 8-DIP Module
Lager5.724
MC010A1
GE Critical Power

CONVERTER DC/DC 5V 10W OUT

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 18V
  • Voltage - Input (Max): 36V
  • Voltage - Output 1: 5V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 2A
  • Power (Watts): 10W
  • Voltage - Isolation: 500V
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 80%
  • Mounting Type: Through Hole
  • Package / Case: 5-DIP Module
  • Size / Dimension: 2.00" L x 1.60" W x 0.50" H (50.8mm x 40.6mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 5-DIP Module
Lager6.048
hot LW015C
GE Critical Power

CONVERTER DC/DC 15V 15W OUT

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 15V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 1A
  • Power (Watts): 15W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: OCP, OVP, UVLO
  • Operating Temperature: -40°C ~ 105°C
  • Efficiency: 78%
  • Mounting Type: Through Hole
  • Package / Case: 6-DIP Module
  • Size / Dimension: 2.00" L x 1.00" W x 0.40" H (50.8mm x 25.4mm x 10.2mm)
  • Supplier Device Package: -
  • Control Features: -
Paket: 6-DIP Module
Lager5.598
LW010F1
GE Critical Power

CONVERTER DC/DC 3.3V 8W OUT

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 36V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 3.3V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 2.42A
  • Power (Watts): 10W
  • Voltage - Isolation: 1.5kV (1500V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OVP, UVLO
  • Operating Temperature: -40°C ~ 105°C
  • Efficiency: 76%
  • Mounting Type: Through Hole
  • Package / Case: 6-DIP Module
  • Size / Dimension: 2.00" L x 1.00" W x 0.40" H (50.8mm x 25.4mm x 10.2mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 6-DIP Module
Lager6.894
ATA016A0X43
GE Critical Power

CONVER DC/DC 0.75 5.5V @ 16A SIP

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 8.3V
  • Voltage - Input (Max): 14V
  • Voltage - Output 1: 0.8 ~ 5.5 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 16A
  • Power (Watts): 88W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 92%
  • Mounting Type: Through Hole
  • Package / Case: 11-SIP Module
  • Size / Dimension: 2.00" L x 0.32" W x 0.50" H (50.8mm x 8.1mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active High
Paket: 11-SIP Module
Lager7.056
150051263
GE Critical Power

DC/DC CONVERTER

  • Type: -
  • Number of Outputs: -
  • Voltage - Input (Min): -
  • Voltage - Input (Max): -
  • Voltage - Output 1: -
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): -
  • Power (Watts): -
  • Voltage - Isolation: -
  • Applications: -
  • Features: -
  • Operating Temperature: -
  • Efficiency: -
  • Mounting Type: -
  • Package / Case: -
  • Size / Dimension: -
  • Supplier Device Package: -
  • Control Features: -
Paket: -
Lager2.394
EHHD015A0A64-18HZ
GE Critical Power

DC/DC CONVERTER 5V 15A 75W

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 18V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 5V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 15A
  • Power (Watts): 75W
  • Voltage - Isolation: 2.25kV (2250V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP, UVLO
  • Operating Temperature: -40°C ~ 105°C
  • Efficiency: 90.5%
  • Mounting Type: Through Hole
  • Package / Case: 8-DIP Module
  • Size / Dimension: 2.28" L x 0.90" W x 0.30" H (57.9mm x 22.8mm x 7.6mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active High
Paket: 8-DIP Module
Lager6.426
NSR020A0X543Z
GE Critical Power

DC/DC CONVERT 0.59-6V 20A 120W

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 4.5V
  • Voltage - Input (Max): 14.4V
  • Voltage - Output 1: 0.59 ~ 6 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 20A
  • Power (Watts): 120W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 95%
  • Mounting Type: Through Hole
  • Package / Case: 10-SIP Module
  • Size / Dimension: 1.45" L x 0.36" W x 0.61" H (36.8mm x 9.2mm x 15.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active High
Paket: 10-SIP Module
Lager6.804
IND045W
GE Critical Power

5A DC/DC CONVERT 3-9V INDUSTRIAL

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 9.6V
  • Voltage - Input (Max): 14.4V
  • Voltage - Output 1: 3 ~ 9 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 5A
  • Power (Watts): 45W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP
  • Operating Temperature: -40°C ~ 105°C (With Derating)
  • Efficiency: 93.3%
  • Mounting Type: Surface Mount
  • Package / Case: 6-SMD Module
  • Size / Dimension: 0.80" L x 0.45" W x 0.33" H (20.3mm x 11.4mm x 8.5mm)
  • Supplier Device Package: 6-SMD
  • Control Features: Enable, Active Low
Paket: 6-SMD Module
Lager6.786
ATA010A0X3Z
GE Critical Power

CONVER DC/DC 0.75 5.5V @ 10A SIP

  • Type: Non-Isolated PoL Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 8.3V
  • Voltage - Input (Max): 14V
  • Voltage - Output 1: 0.8 ~ 5.5 V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 10A
  • Power (Watts): 55W
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 93%
  • Mounting Type: Through Hole
  • Package / Case: 11-SIP Module
  • Size / Dimension: 2.00" L x 0.32" W x 0.50" H (50.8mm x 8.1mm x 12.7mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 11-SIP Module
Lager16.404
UDXS1212A0X3-SRZ
GE Critical Power

DC/DC CONVERTER 2X0.6-5.5V 132W

  • Type: Non-Isolated PoL Module, Digital
  • Number of Outputs: 2
  • Voltage - Input (Min): 4.5V
  • Voltage - Input (Max): 14.4V
  • Voltage - Output 1: 0.6 ~ 5.5 V
  • Voltage - Output 2: 0.6 ~ 5.5 V
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 12A, 12A
  • Power (Watts): -
  • Voltage - Isolation: -
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, UVLO
  • Operating Temperature: -40°C ~ 105°C
  • Efficiency: 95%
  • Mounting Type: Surface Mount
  • Package / Case: 28-SMD Module
  • Size / Dimension: 0.80" L x 0.45" W x 0.34" H (20.3mm x 11.4mm x 8.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 28-SMD Module
Lager6.384
SHHD001A3B41Z
GE Critical Power

DC/DC CONVERTER 15W 12V 1.3A

  • Type: Isolated Module
  • Number of Outputs: 1
  • Voltage - Input (Min): 18V
  • Voltage - Input (Max): 75V
  • Voltage - Output 1: 12V
  • Voltage - Output 2: -
  • Voltage - Output 3: -
  • Voltage - Output 4: -
  • Current - Output (Max): 1.3A
  • Power (Watts): 15W
  • Voltage - Isolation: 2.25kV (2250V)
  • Applications: ITE (Commercial)
  • Features: Remote On/Off, OCP, OTP, OVP, UVLO
  • Operating Temperature: -40°C ~ 85°C
  • Efficiency: 87.5%
  • Mounting Type: Through Hole
  • Package / Case: 6-DIP Module
  • Size / Dimension: 1.10" L x 0.96" W x 0.34" H (27.9mm x 24.4mm x 8.5mm)
  • Supplier Device Package: -
  • Control Features: Enable, Active Low
Paket: 6-DIP Module
Lager18.636
FLTR100V610Z
GE Critical Power

DC FILTER MODULE

  • Accessory Type: Input EMI Filter
  • For Use With/Related Products: DC DC Converters
Paket: -
Lager4.284