Output Ls

Maximum Power per phase

3000Ls: 1 phase 3000 VA, 3 phase 1000 VA;
4500Ls: 1 phase 4500 VA, 3 phase 1500 VA; 
6000Ls: 1 phase 6000 VA, 3 phase: 2000 VA

Power factor

0 to unity at full output VA

Voltage Ranges

Range

VLow

VHigh

AC

0 – 135 V

0 – 270 V

VA Programming Resolution

100 mV

Load Regulation

< 0.1 % FS

Line Regulation

< 0.02 % for 10 % line change

See -HV and EHV options for alternative voltage range pairs.

Programming Accuracy 
(25°C ±5°C)

Voltage (rms): ± (0.05% + 0.25) V from 5.0 V to FS; Frequency: 
± 0.025%, 3 ø: <1° [45-100 Hz], <1° + 1°/kHz [>1kHz]

Frequency Range

45 Hz – 1000 Hz (see -HF option for higher output frequencies) 
Programmable down to 17 Hz with lower V limit.

Frequency Resolution

0.01 Hz at < 81.9 Hz,
0.1 Hz at >82.0 to 819.1 Hz, 
1 Hz at > 819 Hz

Max RMS Current at Low V range

At Full Power

Model

1 ø

3 ø

3000Ls

44.4 A

14.8 A

4500Ls

44.4 A

14.8 A

6000Ls

44.4 A

14.8 A

At Full Scale Voltage

Model

1 ø

3 ø

3000Ls

22.2 A

7.4 A

4500Ls

33.3 A

11.1 A

6000Ls

44.4 A

14.8 A

Note: Constant power mode on 3000Ls and 4500Ls provides increased current at reduced voltage;

Current Limit

Programmable from 0 Amps to maximum current for selected range

Peak Current

3000Ls: 6 X (lrms @ full scale voltage); 4500Ls: 4 X (lrms @ full scale voltage); 6000Ls: 3 X (lrms @ full scale voltage)

Output Noise

100mV rms typ. (20 kHz to 1 MHz) – Standard
250mV rms typ. (20 kHz to 1 MHz) – Option -HF

Harmonic Distortion

< 1% (at full scale voltage, full resistive load)

Output Relay

Push button controlled and bus controlled output relay

Output Lx

Maximum Power per phase

3000Lx: 1 phase: 3000 VA, 3 phase: 1000 VA;
4500Lx: 1 phase 4500 VA, 3 phase 1500 VA; 
6000Lx: 1 phase 5770 VA, 3 phase: 1923 VA

Power factor

0 to unity at full output VA

Voltage Ranges

Range

VLow

VHigh

AC

0 – 150 V

0 – 300 V

VA Programming Resolution

100 mV

Load Regulation

< 0.1 % FS ALC On or Reg.

Line Regulation

< 0.02 % for 10 % line change

See -HV and EHV options for alternative voltage range pairs.

Programming Accuracy 
(25°C ±5°C)

Voltage (rms): ± (0.05% + 0.25) V from 5.0 V to FS, ALC On or Reg; 
Frequency: ± 0.025 %; Phase: ± 1° 45-100 Hz,
± (1° + 1°/kHz) 100 Hz-1kHz

Frequency Range

45 Hz – 1000 Hz (see -HF option for higher output frequencies) (Derated voltage from 17 Hz – 45Hz)

Frequency Resolution

0.01 Hz at < 81.9 Hz,
0.1 Hz at >82.0 to 819.1 Hz, 
1 Hz at > 819 Hz

Max RMS Current at Low V range

Phases V Range

VLow

VHigh

All 3 ø

12.8 A

6.4 A

models 1 ø

38.4 A

19.2 A

At Full Scale Voltage

Model

VLow

VHigh

3000Lx 3 ø

6.6 A

3.3 A

3000Lx 1 ø

20.0 A

10.0 A

4500Lx 3 ø

10.0 A

5.0 A

4500Lx 1 ø

30.0 A

15.0 A

6000Lx 3 ø

12.8 A

6.4 A

6000Lx 1 ø

38.4 A

19.2 A

Note: Constant power mode on 3000Lx and 4500Lx provides increased current at reduced voltage; 6000Lx provides maximum power output.

Current Limit

Programmable from 0 Amps to maximum current for selected range

Peak Current

3000Lx: 5.7 X (lrms @ full scale voltage); 4500Lx: 3.8 X (lrms @ full scale voltage); 6000Lx: 3 X (lrms @ full scale voltage)

Output Noise

100mV rms typ.
250mV rms typ. for -HF option

Harmonic Distortion

< 1% (at full scale voltage, full resistive load)

Output Relay

Push button controlled and bus controlled output relay

Input Ls

Voltage

Models 3000Ls, 4500Ls, 9000Ls, 13500Ls: Standard: 208-230 ± 10% VAC, (L-L, 3 Phase); Option -400: 400 ± 10% VAC (L-L, 3 Phase) Includes CE Mark; Models 6000Ls, 12000Ls, 18000Ls: Standard 208-230 + 10% VAC (L-L, 3 Phase) 

Notes: 1. Input must be specified when ordering. 2. -400 option not availble on 6000Ls, 12000Ls, 18000Ls. 3. 3000Ls can be operated from 1 phase AC. 4. -480V option ± 5% VAC (L-L, 3 Phase) available on 3000Ls & 4500 Ls (3 phase output only)

Line Current (rms per phase)

Model

187 VLL

187 VLN (1 ø)

208 VLL

360 VLL

3000Ls

19 A

32 A

n/a

10 A

4500Ls

31 A

n/a

n/a

16 A

6000Ls

n/a

n/a

38 A

n/a

Inrush Current (Per phase)

@ 180-254 V: 50 A peak
@ 360-440 V: 83 A peak

Line Frequency

47-440 Hz

Efficiency

80% typical

Power Factor

0.7 typical

Hold-up Time

At least 10 ms

Input Lx

Voltage

ModeLx 3000Lx, 4500Lx, 9000Lx, 13500Lx: Standard: 208-230 ± 10% VAC, (L-L, 3 Phase); Option -400: 400 ± 10% VAC (L-L, 3 Phase) Includes CE Mark; ModeLx 6000Lx, 12000Lx, 18000Lx: Standard 208-230 + 10% VAC (L-L, 3 Phase)

Notes: 1. Input must be specified when ordering. 2. -400 option not available on 6000Lx, 12000Lx, 18000Lx. 3. 3000Lx can be operated from 1 phase AC.

Line Current (rms per phase)

Model

3000Lx

3000Lx (1Phase)

4500Lx

6000Lx (@ 280V)

187 VLL

19 A

32 A

31 A

38 A

360 VLL

10 A

n/a

16 A

n/a

Inrush Current (Per phase)

@ 180-254 V: 50 A peak
@ 360-440 V: 83 A peak

Line Frequency

47-440 Hz

Efficiency

80% typical

Power Factor

0.7 typical

Hold-up Time

At least 10 ms

Ls Measurements – Standard (AC Measurements)

Parameter

Frequency

Phase

Voltage (AC rms)

Current (AC rms)

Range

45-1000Hz

45-100Hz 
100-1000Hz

0-400V

0-50A

Accuracy* (±) 
1 ø mode (-1)

0.1% + 1 digit

0.5°
2°

0.05% + 250 mV

0.1% + 150 mA

Accuracy* (±) 
3 ø mode (-3)

0.1% + 1 digit

0.5°
2°

0.05% + 250 mV

0.1% + 50 mA

Resolution*

0.01 Hz / 
0.1 Hz / 
1 Hz

0.1°

10 mV

1 mA

Parameter

Real Power

Apparent Power

Power Factor

Range

0-6kW

0-6kVA

0.00-1.00

Accuracy* (±) 1 ø mode (-1)

0.15% + 9 W

0.15% + 9 VA

0.03

Accuracy* (±) 3 ø mode (-3)

0.15% + 3 W

0.15% + 3 VA

0.01

Resolution*

1 W

1 VA

0.01

* Accuracy specifications are in % of reading and apply above 100 counts. For multi-chassis configurations, current, power range and accuracy specifications are multiplied by 3. Power factor accuracy applies for PF > 0.5 and VA > 50% of max. Frequency measurement specification valid for output > 30 Vrms.

Lx Measurements – Standard (AC Measurements)

Parameter

Frequency

Phase

Voltage (AC rms)

Current (AC rms)

Range

45.00-81.91 Hz
82.0-819.1 Hz
> 819 Hz

0.0° – 359.9°

0-400V

0-50A

Accuracy* (±) 
1 ø mode (-1)

0.1% + 1 digit

0.5° < 100 Hz
2° > 100 Hz

0.05% + 0.25V

0.1% + 0.15A

Accuracy* (±) 
3 ø mode (-3)

0.1% + 1 digit

0.5° < 100 Hz
2° > 100 Hz

0.05% + 0.25V

0.1% + 0.05A

Resolution*

0.01 Hz / 
0.1 Hz / 
1 Hz

0.1° / 1°

10 mV

1 mA

Parameter

Crest Factor

Real Power

Apparent Power

Power Factor

Range

1.00 – 10.0

0-6kW

0-6kVA

0.00-1.00

Accuracy* (±) 
1 ø mode (-1)

1.5%

0.15% + 9 W

0.15% + 9 VA

0.03

Accuracy* (±) 
3 ø mode (-3)

1.5%

0.15% + 3 W

0.15% + 3 VA

0.01

Resolution*

0.01

1 W

1 VA

0.01

* Accuracy specifications are in % of reading + scale error and apply above 100 counts. For multi-chassis configurations, current, power range and accuracy specifications are times three. CF accuracy applies for Irms > 50 % of max. PF accuracy applies for PF > 0.5 and VA > 50% of max. Frequency measurement specification valid for output > 20 Vrms.

Ls System

Storage

Setup: 16 complete instrument setups / Transient List: 100 transient steps per list (SCPI mode) or 16 transient registers (APE mode)

Trigger Input/Output

Input: Triggers measurements or transient steps – SMA connector: 10K pull-up / Output: SMA Connector: HCTTL output

Lx System

Storage

Setup: 16 complete instrument setups / Transient List: 100 transient steps per list (SCPI mode)

Trigger Input/Output

Input: Triggers measurements or transient steps – SMA connector: 10K pull-up / Output: SMA Connector: HCTTL output

Ls Protection

Storage

Setup: 16 complete instrument setups / Transient List: 100 transient steps per list (SCPI mode) or 16 transient registers (APE mode)

Trigger Input/Output

Input: Triggers measurements or transient steps – SMA connector: 10K pull-up / Output: SMA Connector: HCTTL output

Lx System

Storage

Setup: 16 complete instrument setups / Transient List: 100 transient steps per list (SCPI mode)

Trigger Input/Output

Input: Triggers measurements or transient steps – SMA connector: 10K pull-up / Output: SMA Connector: HCTTL output

Ls Protection

Overload/Temp/Voltage

Overload: Constant current or constant voltage mode; Over temperature: Automatic Shutdown; Over voltage: Automatic shutdown

Lx Protection

Overload/Temp/Voltage

Overload: Constant current or constant voltage mode; Over temperature: Automatic Shutdown; Over voltage: Automatic shutdown

Regulatory/RFI Suppresion

IEC1010, EN50081-2, EN50082-2, CE (for 400V input only), EMC, and safety mark requirements / RIF Suppression: CISPR 11, Group1, Class A

Ls Remote Control

IEEE-488 Interface

IEEE-488 (GPIB) talker listener. Subset: AH1, DC1, DT1, L3, RL2, SH1, SR1, T6, IEEE-488.2 SCPI Syntax

USB Interface & Ethernet (option)

Version: USB 1.1; Speed: 460 Kb/s maximum / Ethernet Interface (Optional): specify -LAN option. 10BaseT, 100BaseT, RJ45

RS232C Interface

Bi-directional serial interface; 9-pin D-shell connector. Handshake: CTS, RTS. Databits: 7 w/ parity, 8 w/o parity. Stopbits: 2. Baud rate: 9600 to 115200. Supplied with RS232C cable / Code and Format: SCPI; APE and Able : option -GPIB

Lx Remote Control

IEEE-488 Interface

IEEE-488 (GPIB) talker listener. Subset: AH1, C0, DC1, DT1, L3, PP0, RL2, SH1, SR1, T6, IEEE-488.2 SCPI Syntax

USB Interface & Ethernet (option)

IEEE-488 (GPIB) talker listener. Subset: AH1, C0, DC1, DT1, L3, PP0, RL2, SH1, SR1, T6, IEEE-488.2 SCPI Syntax

RS232C Interface

Bi-directional serial interface; 9-pin D-shell connector. Handshake: CTS, RTS. Databits: 7 w/ parity, 8 w/o parity. Stopbits: 2. Baud rate: 9600 to 115200. Supplied with RS232C cable / Code and Format: SCPI / Not enabled if LAN option is present.

Ls Physical Dimensions

Dimensions (per chassis)

Height: 10.5” (267 mm), Width: 19” (483 mm), Depth: 23.7” (602 mm) (depth includes rear panel connectors)

Weight

Chassis: Net: 193 lbs / 87.7 Kg, Shipping: 280 lbs / 127.3 Kg (for /2 or /3 model configuarations multiply by number of chassis).

Vibration and Shock

Designed to meet NSTA project 1A transportation levels

Air Intake/Exhaust

Forced air cooling, side air intake, rear exhaust

Temperature

Temperature: Operating: 0 to 35° C, full power / Storage: -40 to +85° C;

Diagnostics

Built-in self test available over bus (*TST)

Rear Panel Connectors

* Three phase AC input and output terminal block with safety cover. * IEEE-488 (GPIB) connector (Option -GPIB). * 9-pin D-Shell RS232C connector (RS232 DB9 to DB9 cable supplied). * Remote Inhibit (INH) and Discrete Fault Indicator (DFI). * Remote voltage sense terminal block. * Trigger In1 and Trigger Out1. * System interface connectors. * Auxiliary Output (Option -AX)

Lx Physical Dimensions

Dimensions (per chassis)

Height: 10.5” (267 mm), Width: 19” (483 mm), Depth: 23.7” (602 mm) (depth includes rear panel connectors)

Weight

Chassis: Net: 193 lbs / 87.7 Kg, Shipping: 280 lbs / 127.3 Kg (for /2 or /3 model configuarations multiply number of chassis)

Vibration and Shock

Designed to meet NSTA project 1A transportation leveLx

Air Intake/Exhaust

Forced air cooling, side air intake, rear exhaust

Temperature

Temperature: Operating: 0 to 35° C, full power / Storage: -40 to +85° C;

Diagnostics

Built-in self test available over bus (*TST)

Rear Panel Connectors

* Three phase AC input and output terminal block with safety cover. * IEEE-488 (GPIB) connector, USB connector, RJ45 connector (with -LAN Option). * 9-pin D-Shell RS232C connector (RS232 DB9 to DB9 cable supplied). * Remote Inhibit (INH) and Discrete Fault Indicator (DFI). * Remote voltage sense terminal block. * Trigger In1 and Trigger Out1. * System interface connectors. * Auxiliary Output (Option -AX)