EX1200-2001 and EX1200-2002:

• Switch up to 16 A current – highest in its class
• Large switching capacity in a small footprint
• High breakdown voltage (1,000 V rms between open contacts)
• Failsafe interrupt detects fault conditions and opens relays to their default state. This protects the test object from damage if a fault occurs.

The VTI Instruments EX1200-2001 is the only switch module in its class with the ability to switch up to 16 A. Some applications include: AC line power switching, switching of DC or AC power supplies, control or driving relays for industrial machines (robotics, numerical control machines), automotive engine control, and solenoid switching. Since this module typically switches power to the UUT or interface, the digital input lines on the EX1200 series mainframes support the ability to force all relays automatically to their normally open state if a fault condition occurs. This approach instantly removes all power to the UUT or interface. This module can be automatically configured in the setup phase at the beginning of each scan step to facilitate test sequencing and control.

The EX1200-2002 is the only switch module in its class with the ability to switch up to 16 A. Some applications include: AC line power switching, switching of DC or AC power supplies, control or driving relays for industrial machines (robotics, numerical control machines), automotive engine control, and solenoid switching. Since this module typically switches power to the UUT or interface, the digital input lines on the EX1200 series mainframes support the ability to force all relays automatically to their normally open state if a fault condition occurs. This approach instantly removes all power to the UUT or interface. This module can be automatically configured in the setup phase at the beginning of each scan step to facilitate test sequencing and control.

The EX1200-2008H is a high-voltage multiplexer module designed for electrical safety testing, insulation testing kind of applications whose voltage levels exceed standard 300 V level. EX1200-2008H can switch voltages up to 1000 V, at power levels up to 25 VA. Each card contains three banks of 10x1 multiplexers. The EX1200-2008H has been designed for applications requiring high-voltage signal switching. When switching high voltages, the need for signal shielding becomes critical.

This module has been designed to include large shield planes to reduce crosstalk and voltage spikes to adjacent channels. For ATE applications, such as switching high-voltage source measure units or power supplies, a fail-safe interrupt line (TTL-logic) is provided on the front panel. A change in state on this input pin can be used to create a fault condition and force all relays to their open state. This approach provides an additional layer of safety in the event that an adapter is removed by a technician while voltage is still present at the interface panel.