SPST
Single Pole Single Throw relay.
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Product
Flow Indicator
Qualitrol 092
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Designed to indicate “pump on” and “pump off” conditions within a forced cooling system. Select models also indicate flow direction. Up to two SPST or SPDT switches are available for control and/or alarm functions. Large dial face provides easy viewing and is magnetically coupled to the flange assembly allowing leak free replacement if damaged.
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Product
(8×32)-Ch 0,5A-200VAC Matrix
YAV90062
Matrix Switch Module
256 relays SPST matrix (4×64 1 pole) or (4×32 2 poles). Max switching 10W CAN Control (or Ethernet with Ethernet to CAN Gateway) Drivers dll & VIs available
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Product
PXI 32 x SPDT Reed Relay
40-110-121
Relay
Our 40-110 and 40-115 range of reed relay switching modules are available in both Changeover (SPDT) and Normally Open (SPST & DPST) configurations. Connections are made via a front panel 96 pin male micro-D connector. For applications requiring improved bandwidth and crosstalk performance please look at our 40-120/125 range of shielded reed relay cards. General purpose reed relays are suitable for the construction of small switching networks, for slaving up to larger switches or for operating external devices (e.g. lamps, solenoids etc.). To simplify inter-relay wiring, interconnection points are built onto the circuit board thus easing the construction of complicated wiring.
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Product
PXI-2520, 80-Channel, 2 A, SPST PXI Relay Module
778572-20
Relay
80-Channel, 2 A, SPST PXI Relay Module—The PXI‑2520 is a general-purpose switch module that features independent single‑pole single‑throw (SPST) Form A armature relays. Each relay is nonlatching with very low on-resistance and low thermal offsets. The PXI‑2520 is fully software programmable, and it supports onboard relay count tracking. With an efficient coupling of voltage/current capability and relay density, this switch module is ideal for automated test equipment (ATE) loads or for controlling heaters, lights, and fans.
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Product
PCI 25xDPST Reed Relay Card
50-115A-022
Reed Relay
This is the 25xDPST version of our 50-110A/50-115A range of reed relay switching cards which are available in both Changeover (SPDT) and Normally Open (SPST & DPST) configurations. Connections are made via a front panel 200 pin female LFH connector.
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Product
PXI Solid State Switch Module, 6xSPST, 10 A
40-182A-011
Switch Module
The 40-182A-011 has 6 off high current SPST switches in two PXI slots and is part of our range of high power solid state switching solutions. Each SPST switch uses a fully isolated solid state relay which has been designed to offer fast operation under hot switching conditions and high inrush current with no operational life degradation. Each SPST switch can support 10A of continuous current and switch up to 200V signals. The switch can sustain inrush currents in excess of 50A. AC or DC signals can be switched since the switch is polarity insensitive.
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Product
PXI/PXIe High Density Electro-mechanical Relay Module, 25xDPST
40-146A-002
Relay
The 40-146A-002 (PXI) and 42-146A-002 (PXIe) 25xDPST relay module is part of a range of high density switching modules available in Normally Open (SPST & DPST), Changeover (SPDT) and Normally Closed (SPST) configurations. Connections are made via a front panel 200-pin female connector.
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Product
PXI/PXIe High Density Electro-mechanical Relay Module, 75xSPST, Normally Open
42-145A-101
Relay
The 40-145A-101 (PXI) and 42-145A-101 (PXIe) 75xSPST relay module is part of a range of high density switching modules available in Normally Open (SPST & DPST), Changeover (SPDT) and Normally Closed (SPST) configurations. Connections are made via a front panel 200-pin female connector.
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Product
LXI Optical Switching - 16:1 Multiplexer Plugin Module
65-281-314
Multiplexer Module
The 65-281-314 16:1 multiplexer is part of the 65-280 and 65-281 ranges of optical plug-in modules offering matrix & insert/bypass or multiplexer & SPST topologies respectively with all models based on MEMS fiber optic switches and available in various populations per plugin. In addition, a choice of different connector styles to suit most applications is offered: FC/APC (for optimal performance), FC/PC, SC/PC and ST for general applications and LC for high density applications. They use MEMS (Micro-Electro-Mechanical-Systems) based optical switches to route signals between terminals by redirecting the optical signal. This is achieved using micromechanical mirrors driven by a highly precise mechanism activated via an electrical control signal.
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Product
PXI/PXIe Power Relay Module, 1xSP4T, 20 Amp
42-166-203
Relay
The 40/42-166-203 is a PXI/PXIe high density power relay module with 1xSP4T switches rated at 20A. The 40/42-166 range is available with SPST, SPDT or SP4T switching configurations.
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Product
PXI 5A 16xSPST High Density Power Relay Module
40-137-001
Relay
These PXI Power Relay Modules are suitable for applications requiring power relay switching with high density. This version features 5A current and voltage to 110VDC/250VAC, they are configured as Single Pole Single Throw (SPST). Connections are made via front panel mounted 37 or 78-pin D-Type connector. Along with this 16 x SPST, 5A version, the range also includes a 39 x SPST, 2A version and a 32x SPST version - go to Also in the Range above to learn more. Typical applications will be found in Automotive Test, Aerospace Test and Power Cell Test applications.
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Product
PCI 32xSPST Shielded Reed Relay Card
50-125-021
Reed Relay
The 50-110/115 range of PCI shielded switching cards are available in both Changeover (SPDT) and Normally Open (SPST & DPST) configurations. Connections are made via a front panel 200 pin female connector.
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Product
Level Monitoring
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Magnetic level switches are used for the monitoring and control of liquid level in tanks. These level switches are specifically manufactured to customer specifications. The float switches are manufactured with a hermetically sealed contact which is located within the guide tube. The float sliding on the tube contains a ring magnet which activates the sealed contact in a non-contacting fashion. The sealed contacts are available as SPST (N/O or N/C) or SPDT (N/O + N/C). The float sliding up and down on the guide tube is the only moving part on the M-series magnetic float switches.
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Product
PXIe Power Relay Module, 6xSPDT, 16 A
42-161A-102
Relay
The 40/42-161A-102 is a PXI/PXIe 6xSPDT power relay module and is part of a range of high density power switching solutions with a choice of SPST, and SPDT relay configurations with or without hardware interlock.
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Product
PXI Programmable Resistor Card 2-Channel 2.5 Ohm to 2.04k Ohm - SPST
40-294-122
Programmable Resistor Module
These PXI Programmable Resistor modules are available with either two channels of 16-bit, two channels of 12-bit or four channels of 8-bit resistor chains in a single 3U PXI module. The module is ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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Product
PXI Solid-State SPST Switch, 3-Channel 25A 100V
40-184-002
SPST Switch
The 40-184-002 has 3-off high current SPST switches in one PXI slot and is part of our range of high power solid state switching solutions. Each SPST switch uses a fully isolated solid-state relay which has been designed to offer fast operation under hot switching conditions and high inrush current with no operational life degradation.
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Product
PXI/PXIe High Density Electro-mechanical Relay Module, 75xSPST, Normally Closed
42-145A-101-NC
Relay
The 40-145A-101-NC (PXI) and 42-145A-101-NC (PXIe) 75xSPST relay module is part of a range of high density switching modules available in Normally Open (SPST & DPST), Changeover (SPDT) and Normally Closed (SPST) configurations. Connections are made via a front panel 200-pin female connector.
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Product
PXI/PXIe High Density Electro-mechanical Relay Module, 100xSPST, Normally Closed
42-145A-201-NC
Relay
The 40-145A-201-NC (PXI) and 42-145A-201-NC (PXIe) 100xSPST relay module is part of a range of high density switching modules available in Normally Open (SPST & DPST), Changeover (SPDT) and Normally Closed (SPST) configurations. Connections are made via a front panel 200-pin female connector.
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Product
PCI Express 8 Reed Relay Output
8012e
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The 8012e Low Profile PCI Express digital interface provides eight optically isolated inputs and eight Reed relay outputs (SPST). The isolated inputs are non-polarized and rated for 3-30 VDC. Optical isolation protects the PC and other sensitive equipment from the voltage spikes and ground loop currents that are common to industrial environments.
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Product
PXI 16 x DPST Reed Relays
40-115-022
Relay
This is the 16xDPST version of our 40-110/40-115 range of reed relay switching modules which are available in both Changeover (SPDT) and Normally Open (SPST & DPST) configurations. Connections are made via a front panel 96 pin male micro-D connector.
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Product
PXI Solid State Switch Module, 3xSPST, 10 A
40-182A-012
Switch Module
The 40-182A-012 has 3 off high current SPST switches in one PXI slot and is part of our range of high power solid state switching solutions. Each SPST switch uses a fully isolated solid state relay which has been designed to offer fast operation under hot switching conditions and high inrush current with no operational life degradation. Each SPST switch can support 10A of continuous current and switch up to 200V signals. The switch can sustain inrush currents in excess of 50A. AC or DC signals can be switched since the switch is polarity insensitive.
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Product
PXI 6-Channel 10A Solid State SPST Switch
40-182-011
Switch Module
The 40-182-011 has 6 off high current SPST switches in two PXI slots and is part of our range of high power solid state switching solutions. Each SPST switch uses a fully isolated solid state relay which has been designed to offer fast operation under hot switching conditions and high inrush current with no operational life degradation.
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Product
8-Ch SPST 12A-250VAC 24VDC Multiplexer with CAN
H620047C2
Multiplexer Module
This module is ideal for switching up to 12A. Composed by eight relays organized in two trees of four with two relays with NC contact available. The module is shielded in order to reduce the radiated interference in high current switchings.
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Product
PXI/PXIe Power Relay Module, 3xSP4T, 20 Amp
42-166-201
Relay
The 40/42-166-201 is a PXI/PXIe high density power relay module with 3xSP4T switches rated at 20A. The 40/42-166 range is available with SPST, SPDT or SP4T switching configurations. It uses power relays which are suitable for switching loads up to 20A at 240VAC (SPDT & SP4T versions) or 30A at 277VAC (SPST versions).
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Product
PXI 18xSPST High Voltage Power Relay Module
40-330-002
Relay
The Pickering Interfaces 40-330 High Voltage Power Relay Module is suitable for applications requiring high voltage power relay switching with high density.It features current handling up to 5A, 1000VDC/1000VAC peak cold switching and 110VDC/250VAC hot switching. It is configured as a bank of 12, 18 or 24 separate Single Pole Single Throw (SPST) relays. Connections are made via a front panel mounted 50-pin (24xSPST) or 37-pin (18 and 12xSPST) high voltage D-Type connector.
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Product
PXIe Power Relay Module, 10xSPST, 16 A
42-161A-003
Relay
The 40/42-161A-003 is a PXI/PXIe 10xSPST power relay module and is part of a range of high density power switching solutions with a choice of SPST, and SPDT relay configurations with or without hardware interlock.
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Product
PXI/PXIe High Density Electro-mechanical Relay Module, 48xSPDT
42-148A-101
Relay
The 40-148A-101 (PXI) and 42-148A-101 (PXIe) 48xSPDT relay module is part of a range of high density switching modules available in Normally Open (SPST & DPST), Changeover (SPDT) and Normally Closed (SPST) configurations. Connections are made via a front panel 200-pin female connector.
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Product
PXI/PXIe High Density Reed Relay Module, 75xSPST
42-140B-121
Reed Relay
The 40-140B-121 (PXI) and 42-140B-121 (PXIe) are 75xSPST general purpose switching modules. They are part of a range of high density relay modules using ruthenium reeds available in 50x, 75x and 100x Normally Open SPST configurations. Connections are made via a front panel 200-pin female connector.
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Product
PXI/PXIe Power Relay Module, 8xSPDT, 5 Amp, 50-Pin SGMC Connector
40-158-004-HI
Relay
The 40/42-158-004-HI is a PXI/PXIe high density power relay module with 8xSPDT switches rated at 5A and includes the hardware interlock option. User connection is via a 50-pin SGMC male connector, hardware interlock is via a 4-pin 00 series socket (mating plug is supplied). The 40/42-158 range is available in 8, 16, 24 or 32 SPST configurations with or without hardware interlock.
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Product
PCI Programmable Resistor Card 4-Channel 2 Ohm To 510 Ohm - SPST
50-294-114
Programmable Resistor Module
The 50-294 series of PCI Programmable Resistor cards are available with two channels of 16-bit, two channels of 12-bit or four channels of 8-bit resistor chains in a single card. These cards are ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.





























