HP / Agilent 59511A Polarity Reversal Relay Device

The HP/Agilent 59511A is a polarity reversal relay device that enables remote DC signal polarity control in automated test systems and power supply applications. Built around an internal microprocessor, it switches power and sense leads while minimizing voltage overshoots to protect connected loads. The unit supports control via GPIB when paired with compatible Agilent system power supplies, or through TTL interface for broader integration flexibility.

– Technical Specifications

Electrical Performance
• Maximum output power: 4000 W
• Maximum voltage output: 200 V
• Maximum current output: 60 A
• Operating ranges: 200 V at 20 A, 120 V at 30 A, 48 V at 60 A
• DC voltage drop (at 60 A): 0.5 V maximum per relay
• Floating voltage: 200 Vdc (input to output), 500 Vdc (input/output to ground), 240 Vdc (TTL control to ground)

Switching Performance
• Connect time: 440 ms
• Disconnect time: 160 ms
• Polarity reversal time: 600 ms

Power Requirements
• AC input: 100V to 240V RMS, 50/60 Hz (configurable for 100, 120, 200, or 240 Vac)
• Input tolerance: −13%, +6%
• Maximum input power: 60 VA

Physical
• Net weight: 3.6 kg (8 lb)
• Shipping weight: 5.0 kg (11 lb)
• With Option 850 (Rack Mount Kit): 5.5 kg (12 lb)

– Key Features

• Polarity reversal capability plus output isolation functions
• Microprocessor-controlled switching reduces voltage overshoot transients
• Dual control interface: GPIB and TTL
• Integrated output noise filter improves PARD performance with Agilent 603xA supplies
• High current handling to 60 A
• Isolated floating operation to 500 Vdc

– Typical Applications

• Automated DC power supply testing and characterization
• Load polarity switching in calibration systems
• Data acquisition system control
• Automated test equipment requiring remote polarity control

– Compatibility & Integration

Direct integration with Agilent 6030A, 6032A, 6033A, 6038A, and 603xA series power supplies via GPIB. Compatible with Agilent 66xxA series for control functions. TTL interface enables use with non-Agilent DC sources within voltage and current limits. Not for use with Agilent 6680A, 6681A, 6682A, 6683A, 6684A, or 6035A models.