PXI/PXIe 5 Amp Power Relay Modules
The 40-153/158 (PXI) and 42-153/158 (PXIe) power relay modules are suitable for switching heavy AC or DC loads or for controlling large external relays, contactors and solenoids. They are available in multiple configurations up to 50 SPST relays (-153) or 32 SPDT relays (-158). These products are the highest density 5 Amp switching modules in the PXI market, providing double the channel count of the nearest competitor.
The 40/42-153 family offers 18, 25, 36 or 50 off SPST relay loadings, whereas the 40/42-158 provides 8, 16, 24 or 32 off SPDT versions. Devices can hot-switch inductive/capacitive loads up to 5 A at 250 VAC to a maximum power of 150W/1250VA (-153) or 175W/1250VA (-158); cold-switching performance is up to 400VDC/250VAC peak. The new high-performance power relay modules offer low path resistance of less than 35mΩ with a thermal offset of just 3µV (typical) plus typical bandwidths of 65MHz (-153) and 100MHz (-158) at the -3dB point.
These modules are available with an optional hardware interlock that returns all fully functional relays to the default unpowered (open) state. The interlock status is also monitored by the control software and will notify the user when attempting to operate relays when the interlock is activated.