Does your system use 3 phase motors? Then you need phase monitor protection!
Marshall Wolf Automation is your industrial automation distributor for a full line of monitoring relays and phase monitors!
We can
monitor phase loss and phase sequence with features including asymmetry, self-powered and 3 phase monitors.
Marshall Wolf Automation is your authorized source for monitoring relays from Carlo Gavazzi, Crouzet and Takex!
Search all of our phase monitors now!
Carlo Gavazzi announced that all of their manufacturing locations worldwide are now certified according to International Standard ISO 14001:2004.

To obtain this certification it is necessary to demonstrate a commitment to reduce the environmental impact through responsible and compliant actions. This is an ongoing effort and there are many energy management solutions in place for continuous improvement.
Marshall Wolf Automation is your industrial automation distributor for the full line of
Carlo Gavazzi sensors, phase monitors, relays, industrial DC power supplies, energy management solution products and more.
View all of our
Carlo Gavazzi products now!
Do you want a user to be informed of abnormal operating conditions? This would allow

them to take the necessary actions to correct the fault before an expensive breakdown occurs!
Would you like to monitor and detect abnormal electrical or physical values such as voltage, current and phase? Once an abnormality is detected the relay will emit a visible signal and trigger a change in the output contacts.
Is your goal to avoid production shutdowns and keep your lines running smoothly? Our Crouzet line of
control relays and monitoring relays will help you do this!
Here is a quick list of common applications for the
Crouzet C-Lynx control relays:
- Supervision of motors - check phase sequence and phase failure
- Temperature control in lifts - monitor temperatures
- HVAC - stop the motor in case of faults
- Pump and level control - manage and protect equipment
- Load monitoring - monitor overloads on driving motors and detect jams
- Speed monitoring - react and alert the operator if machine operating rate is high or low
Marshall Wolf Automation is your industrial automation distributor for the complete line of Crouzet monitoring relays, phase monitors, temperature control products and three phase monitors!
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monitoring relays now!
Phase Monitors are protective devices that can shut the compressor down if there’s a problem with the incoming power. There are different versions that can sense all or some of the following:
- Unbalanced voltage
- High Voltage
- Low Voltage
- Loss of a phase
- Phase reversal
Any one of these problems can cause serious and expensive damage to the compressor. In areas where the quality or consistency of incoming power is questionable, phase monitors are cheap insurance against an expensive failure.
Marshall Wolf Automation has single and 3 phase monitors to protect your equipment. We are authorized industrial supply distributors for Simpson Meters, Carlo Gavazzi Sensors as well a numbers other lines and products.
Take a look at our website www.wolfautomaion.com and see how we can help to keep your equipment safe.
Are you looking for a reliable light curtain for your car washing systems?
Carlo Gavazzi sensors has the perfect solution with their BFD series of light curtains!
The Carlo Gavazzi BFD light curtains prevent a closing door from colliding with people or vehicles in the door operating area.
High immunity to direct sunlight and automatic level adjustment make it a perfect fit for car washing systems. Their accuracy is not affected by environmental conditions such as fog, cold or hot temperatures!
Marshall Wolf Automation is your industrial automation distributor for the full line of Carlo Gavazzi sensors, relays, inductive and capacitive proximity sensors, light curtains, phase monitors and industrial DC power supplies!
Search all of our Carlo Gavazzi sensors and products now!
Learn more about the Carlo Gavazzi BFD series light curtains!
Customers ask quite often 'what exactly can I use a smart relay for?'... so we will be putting out a few blogs answering just that!
Crouzet Millenium logic controllers can do the following and more!
Adjusting: several options for adjusting setpoints
Converting: analog extensions are used to acquire or provide current, voltage or temperature values and convert them to the digital signals needed by the logic controller
Operator dialog: easy parameter setting with a built-in backlit screen
Supplying power: 12 and 24V DC voltage available, power supply ranges from 7.5 to 240 watt.
Actuating: Crouzet Millenium 3 can be used to drive devices such as brushless motors, solenoid valves and pumps (relay, solid state or PWM outputs).
Communicating: Crouzet Millenium 3 offers the option of supervising and connecting your devices (PC, remote screens/keyboards, etc.) by linking the logic controller to fieldbuses or via a modem: STN or GSM.
Marshall Wolf Automaton is your industrial automation distributor for the complete line of Crouzet Millenium programmable logic controllers (we also carry IDEC SmartRelays), phase monitors, counters, timers, solid state relays and industrial DC power supplies.
Order one of our Crouzet Millenium starter kits, they come with everything you need!
View our entire selection of Crouzet products!
Carlo Gavazzi has launched an incredible new Parking Guidance and Space Availability System, which utilizes the robust Dupline System as it's communication bus.
This revolutionary new system shows the exact number of parking spaces (including the handicapped parking spaces) available within each section of an indoor parking facility.
Above each parking space is a sensor and indicator light which are linked to the easily installed 3-wire Dupline bus.
If a parking spot is occupied by a vehicle or motorcycle, the indicator light will be red, but if the parking space is open, that space's indicator light will be green or blue (indicating a handicapped spot), showing that the parking space is available.
These red, blue and green indicators can quickly be seen by the drivers, so they know exactly where an open parking space is located.
The 3-wire bus provides the sensors with power, and is also used to transmit information regarding the location of free parking spaces. This Dupline system from Carlo Gavazzi is easy to install and provides simple configuration, reliability and cost effectiveness.
Marshall Wolf Automation is your industrial automation distributor for the full line of Carlo Gavazzi sensors, relays, phase monitors, photoelectric light sensors, soft starters and more.
Engineers are on staff to assist you with any of your application questions regarding Carlo Gavazzi!
Learn more about the Carlo Gavazzi car parking guidance system here!
View all of our Carlo Gavazzi sensors and products now!
If you are looking for a Crouzet distributor that is authorized, stocks Crouzet products, offers great pricing AND has in-house technical support then you found us!

Marshall Wolf Automation is a long-time authorized industrial automation distributor
for the full line of Crouzet products!
Crouzet products include phase monitors and 3 phase monitors, Crouzet Millenium programmable logic relays, industrial DC power supplies, Crouzet solid state relays
and Chronos timers!
Search all of our Crouzet products now!
Learn more about Crouzet Millenium programmable logic relays!
Do you need to monitor something? If you are a manufacturer chances are you need to monitor many things in your process.
Marshall Wolf Automation offers a full line of
monitoring relays and 3 phase monitors.

Whether you need to monitor phase, voltage, frequency, current or any another value our monitoring relays and phase monitors can do the job!
We are authorized stocking industrial automation distributors for all the big names - Carlo Gavazzi, Crouzet, Euchner and Panasonic.
Need assistance? Engineers are ready to help you find the best monitoring relay for your application!
Search all of our monitoring relays and 3 phase monitors now!
Search our
phase monitors here!

Crouzet Micro-Controls products include a wide range of products:
- Industrial DC power supplies
- Timers
- Temperature control products
- Liquid level controls
- Phase monitors
- 3 phase monitors
- Safety relays
- PLC's (programmable logic controllers)
- Counters
- Current and voltage relays
Industries that would benefit from
Crouzet products are agricultural, building automation, water/wastewater management, packaging, baking ovens, solar panels... you name it!
Marshall Wolf Automation is your industrial automation distributor for the full line of
Crouzet products!
Marshall Wolf Automation is always looking for new products for your energy management systems and this one comes from Carlo Gavazzi!

Both the
RSBS series, a single phase soft start and the RSBT, a 3-phase soft start, were specifically designed for the HVAC industry!
The single phase RSBS series is ideal for compressors generally used in heat pump applications. The 3-phase RSBT is common for controlling (scroll) compressors used in most HVAC applications.
The HVAC soft starts do more than just start and stop compressors, they are equipped with several other features as well.
Learn more about them now!
Marshall Wolf Automation is your industrial automation distributor for the full line of
Carlo Gavazzi products including Carlo Gavazzi sensors, relays, industrial DC power supplies, monitoring relays and a number of energy management solutions products!
The unique detachable display on the Carlo Gavazzi EM21 energy meters allows users to configure the meter for panel or DIN-rail mounting as either an energy meter or transducer!
This compact 3 phase monitoring meter can help you reduce inventory, save panel space and minimize energy costs!
The Carlo Gavazzi EM21 series energy meter is a must in any energy management solution program.
Marshall Wolf Automation is your industrial supply distributor for the full line of Carlo Gavazzi products including a full selection of energy management products, monitoring relays, 3 phase monitors, sensors, relays and more!
Learn more about the Carlo Gavazzi EM21 energy meters now!
A common application for
monitoring relays is for protecting industrial electric motors against the damaging effects of single phase and overloads. Industries common for this are elevators, compressors, pumps, HVAC and mixing tanks.
Additional applications for monitoring relays and 3 phase monitors include:
- Monitoring instrumentation signals, including 4-20mA and 0-10V
- Verification of machinery operation
- Detection of broken heater elements
- Monitoring of lights in critical areas (runway lights at airports)
- Monitoring ventilation fans
- Monitoring building automation systems

Marshall Wolf Automation is your industrial automation distributor for a full line of monitoring relays and 3 phase monitors from both Carlo Gavazzi and Crouzet.
Easily search all of our
monitoring relays and 3 phase monitors now!
If you need a monitoring relay then
www.WolfAutomation.com is where you should look!
We carry all types of monitoring relays including:- phase loss monitors
- phase sequence monitors
- voltage monitors - over/under
- current monitoring relays - over/under
- 3 phase monitors
- 3-phase load guards
- speed monitoring relays
- level control relays - filing/emptying

Marshall Wolf Automation is an authorized industrial supply distributor for top lines of monitoring relays including Carlo Gavazzi and Crouzet!
We offer quick service, great pricing and easy online ordering. Engineers are always able to help you with your applications for monitoring relays and 3 phase monitors.
Search all of our
phase monitors now!
View our entire offering of
monitoring relays!
To expand on my blog from yesterday we actually have both single and 3 phase soft starts
designed specifically for the HVAC industry!
The Carlo Gavazzi RSBS is a single phase soft start ideal for compressors typically used in heat pump applications.
The Carlo Gavazzi RSBT is commonly used for controlling (scroll) compressors used in most HVAC applications.
These Carlo Gavazzi soft starts do not merely start and stop compressors - they are equipped with several other features including reducing energy costs and improving reliability of electrical systems, intergral bypassing of semiconductors, enclosed heatsink-less design and optional auxillary alarm.
These HVAC soft starts are key to any energy management solutions program.
Marshall Wolf Automation is your industrial automation distributor for the entire line of Carlo Gavazzi products including Carlo Gavazzi sensors, relays, monitoring controls, industrial DC power supplies and more.
View all of our Carlo Gavazzi products!
Carlo Gavazzi has released the
RSBT series which is a 3-phase compressor soft start for HVAC compressors, mainly used in heat pumps.
Heat pumps could contribute up to 80% of total emission reductions targeted by 2015 by replacing fossil-fueled heating equipment.
The
Carlo Gavazzi RSBT series reduces energy consumption each time the compressor starts and limits current inrush up to 65%! This makes it a perfect addition to your energy management solutions.
Marshall Wolf Automation is your industrial automation distributor for the entire Carlo Gavazzi line of products.
Carlo Gavazzi products include sensors, relays, monitoring controls and 3 phase monitors, industrial DC power supplies and much more.
Learn more about the Carlo Gavazzi RSBT HVAC soft starter now!
Search all of our
Carlo Gavazzi products!
The
Carlo Gavazzi RSBS23 series heat pump soft start is perfect for your energy management solutions, as it helps conserve energy!

How does it do that you ask? Well, the RSBS23 limits amperage demand which peaks when single-phase scroll compressors, usually heat pumps, are starting.
Want to learn more about it?
Click here for a PDF spec sheet!Did you know that this heat pump soft start is also known as a motor controller?
Marshall Wolf Automation is your source for Carlo Gavazzi Sensors, power supply products and monitoring relays.
Check out all of our Carlo Gavazzi products by clicking here!
The
Carlo Gavazzi RSBS series is a single-phase plug-and-play soft start that reduces the starting current of heat pumps mainly used in residential installations.
The RSBS soft start provides a 60% reduction in current and increases compressor lifetime!Additional features to the
Carlo Gavazzi RSBS heat pump soft start include:
- Maintaining starting current below fixed limits lets the RSBS avoid high-energy tariffs
- Optimized performance for scroll compressors
- Integrated diagnostic features for safe operation at all times
Marshall Wolf Automation is an industrial automation distributor for the full line of Carlo Gavazzi sensors, relays, 3 phase monitors, AC and DC panel meters, industrial DC power supplies and energy management solutions for wind and solar applications.
View all of our Carlo Gavazzi products now!