GW Instek PEL-3041 D.C Electronic Load Programmable



  • Operating voltage (DC):0~150V(PEL-3000)/ 0~800V(PEL-3000H)
  • Operating Mode : C.C / C.V / C.R / C.P / CC+CV / CR+CV / CP+CV
  • Parallel Connection of Inputs for Higher Capacity (Max : 9,450W)
  • Support of High Slew Rate:Max. 16A/us((PEL-3000)/ 0.84A/us(PEL-3000H)
  • Run Program Function(GO/NO GO Test)

specifications GW instek PEL-3041 D.C Electronic Load Programmable

Voltage: 0V~150V

Current: 70A

Power: 350W

Input Resistance: 500KΩ

Min. Operating Voltage(DC)(Typ.): 0.75V@35A; 1.5V@70A

Constant Current Mode

Operating Range: 0~70A; 0~7A; 0~0.7A

Accuracy of Setting H,M,L: ±(0.2 % of set + 0.1 % of f.s*1 ) + Vin*2 /500 kΩ

Accuracy of Setting(Parallel) H,M,L: ±(1.2 % of set + 1.1 % of f.s*3 )

Resolution: 2mA; 0.2mA; 0.02mA

Constant Resistance Mode

Operating Range:

H: 46.6672S~800uS; (21.428mΩ~1.25KΩ)

M: 4.6667S~80uS; (214.28mΩ~12.5kΩ)

L: 0.46667S~8uS; (2.1428Ω~125kΩ)

Accuracy of Setting H,M,L: ±(0.5 % of set*6 + 0.5 % of f.s*1 ) + Vin*3 /500kΩ

Accuracy of Setting(Parallel) H,M,L: ±(1.2% of set +1.1% of f.s)

Resolution: 800uS; 80uS; 8uS

Constant Voltage Mode

Operating Range:

H: 1.5V~150V

L: 1.5V~15V

Accuracy of Setting H,L: ±(0.1 % of set + 0.1 % of f.s.)

Resolution H,L: 10mV / 1mV

Constant Power Mode

Operating Range

H: 35W~350W


L: 0.35W~3.5W

Accuracy of Setting H,M,L: ±(0.6 % of set*5 + 1.4 % of f.s*3 )

Resolution: 10mW; 1mW; 0.1mW

Parallel Mode GW instek PEL-3041

Capacity: 1750W

Slew Rate

Operating Mode: CC, CR

Setting Range H: 5mA/us~5A/us

(CC mode) M: 500uA/us~500mA/us

L: 50uA/us~50mA/us

Setting Range H: 500uA/us~500mA/us

(CR mode) M: 50uA/us~50mA/us

L: 5uA/us~5mA/us

Accuracy of Setting H,M,L: ±(10 % of set*9 + 5us)

Resolution: 2mA/μs(500mA~5A/μs; 200μA/μs(50mA~500mA/μs; 20μA/μs(5mA~50mA/μs; 2μA/μs(500μA~5mA/μs; 200nA/μs(50μA~500μA/μs; 20nA/μs(5μA~50μA/μs)


Voltmeter Accuracy: ±(0.1 % of rdg + 0.1 % of f.s.)

Ammeter Accuracy: ±(0.2 % of rdg + 0.3 % of f.s.)

Ammeter Accuracy: ±(1.2 % of rdg + 1.1 % of f.s.)

(Parallel Operation): ±(1.2 % of rdg + 1.1 % of f.s.)

Dynamic Mode

Operation mode: CC / CR

T1 & T2: 0.025ms ~ 10ms / Res : 1us   ; 1ms ~ 30s / Res : 1ms

Accuracy: 1us / 1ms ±100ppm

Slew Rate H: 5mA/us~5A/us

(CC Mode) M: 500uA/us~500mA/us

L: 50uA/us~50mA/us

Slew Rate H: 500uA/us~500mA/us

(CR Mode) M: 50uA/us~50mA/us

L: 5uA/us~5mA/us

Current Accuracy: ±0.4%F.S

Protection Function

Overvoltage (OVP): Adjustable ; Turns off the load at 110% of the rated voltage

Overcurrent (OCP): 0.06A ~ 77A (Adjustable)

Overpower (OPP): 0.3W ~ 385W (Adjustable)

Overheat (OHP): Turns off the load when the heat   sink temperature reaches 95 °C

Undervoltage (UVP): Adjustable : Turns off the load when detected. Can be set in the range of 0 V to 150 V or Off.

Reverse connection (REV): By diode. Turns off the load when an alarm occurs.

General Specifications

Line Input: 90VAC~132VAC/ 180VAC~250VAC, Single-phase; 47Hz~63Hz

Power Max.(VA): 110VA

Interface: USB/RS232C/Analog Control (Standard) ; GPIB/LAN(Option)

DIMENSIONS & WEIGHT: 214.5(W)x124(H)x400(D)mm

Weight( Approx.): 7kg

Introduction GW instek PEL-3041 D.C Electronic Load Programmable

GW Instek PEL-3041 a single-channel, programmable D.C. electronic load with 0.01mA current resolution and 16A/μs current Slew Rate, is very ideal for testing server power supply and SPS (Switching Power Supply) for commercial and industrial computers. For a heavy-duty device like cloud ecosystem running 24-hour nonstop operations, a stable and high-power power supply, ranging from 175W to 1050W, is required to maintain the normal operation of server, Hub, and the equipment of data storage and internet communications. Owing to the increasing demand of data transmission and large scale data storage of telecommunications systems, the infrastructure of internet communications is in the pace of rapid expansion. This has greatly boosted the market demand of telecommunications equipment powered by power supply of 2000W and above. The flexible power combination of PEL-3000 meets the test requirements of present high-power power supply.


– Operating voltage (DC):0~150V(PEL-3000)
– Operating Mode : C.C / C.V / C.R / C.P / CC+CV / CR+CV / CP+CV
– Parallel Connection of Inputs for Higher Capacity (Max : 9,450W)
– Support of High Slew Rate:Max. 16A/us((PEL-3000)
– Run Program Function(GO/NO GO Test)
– Sequence Function for High Efficient Load Simulations
– Dynamic(Switching) Function:0.0166Hz ~20kHz
– Soft Start Function:Off / On(1~200ms, Res:1ms)
– Adjustable OCP / OVP / OPP / UVP Setting
– Short Circuit Function
– Timer function : Elapsed Time of load on
– Cut Off Time(Auto Load Off Timer ):1s to 999h 59min 59s or Off
– External Channel Control / Monitoring via Analog Control Connector
– Setup Memories:100 sets
– 3.5 Inch TFT LCD Display
– Multi Interface : USB 2.0 Device / Host , RS-232 , GPIB / LAN (Optional)



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