California Instruments 1251RP AC Power Source

The California Instruments 1251RP is a programmable AC power source engineered for comprehensive testing and simulation of AC power conditions. This instrument delivers stable and precise AC voltage and current outputs, making it suitable for a wide array of applications including product testing, avionics systems validation, and power supply evaluations. Its design emphasizes ease of use with front-panel digital encoders for setting voltage and frequency, complemented by high-contrast LCD displays for clear readouts. The California Instruments 1251RP is capable of simulating global power line conditions, ensuring products designed for export will function as intended. Furthermore, its 400 Hz output capability makes it well-suited for commercial and defense avionics applications.

## Technical Specifications

### Output Ratings

* **AC Power Output:** 1250 VA
* **Voltage Ranges:**
* Low Range: 0 – 135 V (L-N)
* High Range: 0 – 270 V (L-N)
* **Voltage Accuracy:**
* @ 50/60 Hz: ± 1 % Full Scale (FS)
* @ 40 Hz: ± 2 % FS
* @ 50-60 Hz: ±1% of range
* @ 400 Hz: ±2% of range
* **Line & Load Regulation:**
* Low Range: ± 1 % FS
* High Range: ± 0.5 % FS
* **Total Harmonic Distortion (THD):** < 0.55 % typical @ 50/60 Hz * **Output Noise:** < 0.1 V typical * **Frequency Range:** 16 Hz to 500 Hz * **Frequency Accuracy:** ± 0.02 % of programmed value * **Frequency Resolution:** * Below 100 Hz: 0.1 Hz * Above 100 Hz: 1 Hz * **Current (Steady State):** * Low Range (0-135V): 9.2 ARMS * High Range (0-270V): 4.6 ARMS * **Peak Current:** * Low Range (0-135V): 27.6 A * High Range (0-270V): 13.8 A * **DC Offset Voltage:** Less than ±25 mV with a linear load### Input Specifications* **Line Voltage (2-Wire + GND):** 100 – 240 ± 10 % VRMS (Nominal: 100V to 240V) * **Maximum Line Voltage:** 85V to 264V * **Input Current:** < 20 ARMS (15 A RMS max) * **Line Frequency:** 47 – 63 Hz * **Holdup Time:** 20 ms * **Power Factor:** > 0.95 typical
* **Inrush Current:** 70 A peak max at 260V input
* **Efficiency:** 80% (typical) depending on line and load

### Measurements

* **Voltage Measurement Range:** 0 – 278 V
* **Current Measurement Range (RMS steady state):** 0.0 – 10.0 ARMS
* **Current Measurement Accuracy:** ± 0.2 ARMS
* **Current Measurement Resolution:** 0.1 A

### Protection

* **Over Temperature:** Yes
* **Over Voltage:** Yes
* **Current Limit:** Programmable (0.1 ARMS to maximum current rating)

### Interfaces and Control

* **Controller Type:** Programmable
* **Controls:** Digital Encoders
* **Readout:** 4-digit LCD for Voltage, Frequency, and Current
* **Remote Control Options:**
* IEEE-488 Interface
* RS232C Interface
* SCPI Command Language
* **IEEE Functions:** SH1, AH1, T8, L3, RL2, SRQ0, PP0
* **RS232C Settings:** 9600, 8, N, 1

### Physical Characteristics

* **Dimensions (H x W x D):** 3.5 x 16.8 x 22 inches (89 x 427 x 560 mm)
* **Weight (Net):** 34 lbs (15.4 kg)
* **Output Connectors:** Front panel outlets and rear panel terminal block
* **Cooling:** Fan cooled, drawing air from the sides and exhausting through the rear

### Environmental

* **Operating Temperature:** 0 to 40 °C
* **Storage Temperature:** -40 to +85 °C

### Regulatory Compliance

* **CE Mark:** Yes
* **Designed to meet:** UL3111 and EN61010-1 European safety standards
* **Vibration and Shock:** Designed to meet NSTA-1A

Why Choose Aumictech for California Instruments 1251RP?
At Aumictech, we specialize in supplying high-end AC power source equipment. Whether you need precise AC power simulation, reliable avionics testing capabilities, or robust power supply validation, our team ensures the California Instruments 1251RP delivers maximum performance for your application.