Input

Voltage Ranges

Factory configured 187 to 264 Vrms, 3ø L-L (3 wire), or 342 to 457 Vrms, 3ø L-L (4 wire). A chassis ground is also required.

Power Factor

PFC Input, 0.99PF

Frequency Range

47 to 440 Hz

Efficiency

70% min, at full load

Ride Through

70% min, at full load

Output

Power

5550 VA: 1ø or 3ø (systems up to 33,000 VA)

AC or DC Output Voltage

0 to156 Vrms L-N, low range; 0 to 312 Vrms L-N, high range

Current Per Phase

13/16A to 135V in 156V range; 6.5/13A to 270V in 312V range per 1750/1850 VA module.
Note: Higher currents may be achieved in 10.5-21 kVA systems.

Power Factor of Load

0 lagging to 0 leading (0-unity)

Crest Factor

3.25:1 (peak output current to rms output current)

Frequency Range

Specifications apply DC, 40Hz to 5kHz. For output frequencies greater than 1 kHz, the max slew rate allowed is 1 kHz per second.

Max Total Harmonic Distortion

(Full Linear Load or No Load): 0.25% max, 40 to 100 Hz; 0.5% max to 500 Hz; and 1% max to 1 kHz plus 1%/kHz to 5 kHz

AC Noise Level

>60 dB rms below full output voltage

Amplitude Stability 
With Remote Sense

±0.1% of full scale over 24 hours at constant line, load and temperature

Line Regulation

(DC, or 40 Hz to 5 kHz): ±0.015% of full scale for a ±10% input line change

Load Regulation

±0.025% of full scale voltage for a full resistive load to no load; above 1 kHz, add ±0%/kHz

Voltage Accuracy

±0.1% of range. Above 1 kHz, add 0.2%/kHz. Add ±0.1% of full scale for “AC PLUS DC” mode. Valid for 5 to 156 Vrms and 10 to 312 Vrms at 25°C

Voltage Resolution

1mV (0.1V) Full Scale

Frequency Accuracy

±0.01% at 25°C ±0.001%/°C

Frequency Resolution

40 Hz to 81.91 Hz (0.01 Hz)
81.90 Hz to 819 Hz (0.01 Hz)
820 Hz to 5000 Hz (1 Hz)

Phase Accuracy, 
Phase-to-Phase Balanced Linear Resistive Load

±1% of Programmed value

Phase Angle Resolution

0.1°

Remote Output Voltage Sense

5 Vrms total lead drop, max

Common

Standard Features

• 1ø to 3ø programmable
• BNC outputs for scope viewing of waveforms (1 MΩLoad Drive)

Interface

IEEE-488.2 interface, RS232, USB, Optional LAN

Protocol

SCPI protocol

WaveForm trigger output

(1 MΩLoad Drive)

Sync OUT

User programmed for: Cycle start, all cycles. Segment start, all or selected segments. For loads ≥2 kΩ: V out ≤1V low state; V out ≥2.4V high state

Clock/lock

Clock – pulses at programmed frequency. For loads ≥2 kΩV out: ≤1V low state; V out ≥2.4V high state Lock – locks output to input 'TTL' frequency; signal needs to supply pull down current of 15 mA with voltage drop of ≤0.6V; no pull up needed

External Amplitude Modulation

0 to 5 Vrms provides 0 to ≥20% output amplitude modulation

External Drive

Normal amplifier, 0 to 5 Vrms (DC to 5 kHz) or ±5 VDC input for zero to full voltage output

External Gain Control

0 to ±7.07 VDC provides zero to full output

External Input Impedance

≥30 kΩ

Environmental

Operating Temperature

0°C to 45°C (32°F to 113°F)

Storage Temperature

-40°C to 70°C (-40°F to 158°F)

Cooling

Air is drawn in from the top, bottom, and sides and exhausted through the rear

Humidity (Non-condensing)

0 to 85% at 25°C (77°F); derate to 50% at 40°C (104°F)

Altitude

Operating 10,000 ft, non operating 40,000 ft

Physical

Dimensions

Width: 19″ (483 mm)
Height: 8.75″ (222 mm)
Depth: 23.5″ (597 mm)

Weight

CSW 5550 – 127 lbs (57.5 kg)

Shipping Weight – US

CSW – 200 lbs (91 kg)

Note: Multi Chassis systems, dimension and weight are approximately x2, x3 and x4 CSW Specifications

Measurements – Standard (AC Measurements)

Parameter

Frequency

Phase

Voltage (AC rms)

Current (AC rms)

Range

40-81.91 Hz
82.0-819.1 Hz
> 819 Hz

40-100 Hz
100-1000 Hz

0-300 V

0-50 A

Accuracy* (±) 
1 ø mode (-1)

0.1% + 1 digit

0.5°

0.5% + 250 mV

0.1% + 150 mA

Accuracy* (±) 
3 ø mode (-3)

.01 Hz / 0.1 Hz / 1 Hz

2°

0.5% + 250 mV

0.1% + 50 mA

Resolution*

.01 Hz / 0.1 Hz / 1 Hz

0.1° / 1°

10 mV

1 mA

Parameter

Real Power

Apparent Power

Power Factor

Range

0-6 kW

0-6 kVA

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 times three. Power factor accuracy applies for PF > 0.5 and VA > 50% of max. Frequency measurement specification valid for output > 30 Vrms.

Harmonic Measurements

Parameter

Range

Accuracy ( ± )

Resolution

Frequency fundamental

16.00 – 1000 Hz

2 counts

0.01 Hz to 1 Hz

Frequency harmonics

32.00 Hz – 16 kHz

2º typ.

0.5º

Voltage

Fundamental

0.25V

0.01V

Harmonic 2 – 50

0.25V + 0.1% + 0.1%/kHz

0.01V

Current

Fundamental

0.05A

0.01A

Harmonic 2 – 50

0.05A + 0.1% + 0.1%/kHz

0.01A

Harmonics frequency range in three-phase mode is 32 Hz – 16 kHz. Accuracy specifications are multiplied by the number of power sources in multi-source systems with the 3-phase (3Ø) or the number of sources times 3 in the 1-phase (1Ø) mode. Measurement bandwidth is limited to 16 Khz.

Model

CSW5550

CSW11100

CSW16650

CSW22200

Multiplier 3Ø/1 Ø

1/3

2/6

3/9

4/12

Model

CSW17750

CSW33300

CSW38850

CSW44400

Multiplier 3Ø/1 Ø

5/15

6/18

7/21

8/24

Protection And Safety

Overvoltage Shutdown

Programmable for 15V to 255V peak, 156V range; 30V to 510V peak, 312V range

Programmable Current Limit Shutdown

Settable to 0.01 ARMS Resolution

Programmable Current Limit 
with Timed Shutdown

Settable to 1% of range: the timeout is settable from 100 ms to 10s.

Over temperature Shutdown

Automatic, not programmable

Regulatory Compliance

• EN 61010
• EN 55011
• UL 3111
• EN 50082-2
• EN 61000-4-3, EN 61000-4-4
• FCC Part 15, Class A
• CE Mark