60 AMP Mercury Contactors from MDI

MDI 60 AMP Mercury Contactors for Industry from Anderson-Bolds

BUY MDI Mercury Contactors HERE


Description

MERCURY TO METAL CONTACTOR
The mercury relays (mercury contactors) load terminals are isolated from each other by the glass in the hermetic seal. "The plunger assembly", which includes the ceramic insulator, the magnetic sleeve and related parts, floats on the mercury pool. When the coil is powered causing a magnetic field, the plunger assembly is pulled down into the mercury pool which is in turn displaced and moved up to make contact with the electrode, closing the circuit between the top and bottom load terminal, which is connected to the stainless steel can.

To make the unit function as a "Hybrid" time delay, we add a solid state circuit to the coil to delay the power to the coil.

For constant duty applications, a return spring is used in place of the buffer spring.
Contact the factory.

The MDI 60 amp contractors come in 1,2,3 and 4 pole versions and coil voltages can be 6, 12,24,48, 120 volts DC and 24, 120, 240, 277, 480 and 600 volts AC. Normally open contractors are the most common, close on energization. Normally closed are also available. Resistive loads are the more common type of loads but the "H" designated contactors are for inductive loads (with inrush currents). 

MDI 60NO-120A contactor

MDI 260-NO120A Contactor

MDI 360-NO120A Contactor

Features

1. ADVANTAGES OVER ELECTROMECHANICAL AND SOLID STATE RELAYS
2. 1. Superior Performance and Reliability
   2. 1. Long life
      2. Durable
   2. Compact Size
   3. Low, Predictable Contact Resistance
   4. Reduced RFI for Improved Interface Capability
   5. Handles a Variety of Loads
   6. 1. Increases design flexibility
   6. Rapid On-Off Cycling Capability
   7. 1. Mercury quickly dissipates contact heat
   7. Low Coil Power Requirements
   8. Minimal Derating Due to Higher Ambient Temperatures
   9. Quiet Action
2. DESIGN and CONSTRUCTION
3. 1. Contacts are within a hermetically sealed steel body
   2. 1. Impervious to adverse conditions
      2. No external arcing
   2. Arcing is in a gaseous atmosphere
   3. 1. Quenches the arc
      2. Extends relay life
   3. Only one moving part (the plunger)
   4. 1. No buttons to pit, weld or burn out
   4. One coil for each set of contacts
   5. 1. Assures consistent switching
      2. Minimizes pull-in variation between contacts
   5. Epoxy encapsulated
   6. 1. Moisture resistant
      2. High dielectric strength
      3. Permanently fixes contacts to coil; eliminating possible misalignment
      4. Helps dissipate heat and noise
      5. Rugged (impact resistant)
3. BENEFITS
1. Reduction of Operational and Maintenance costs
2. Increases Utilization and Productivity of Equipment
3. 1. By reducing down-time
3. Installation and service is a routine operation
1. Simple to install
2. No sophisticated equipment is required
3. Easy to trouble-shoot

Coil Data

417 Ω

144 mA

17.4 VA

8.7 Watts

• Operate Time: 50 milliseconds
• Release Time: 80 milliseconds
• Contacts:
  • 48 AMP @ 600 VAC Resistive
  • 60 AMP @ 480 VAC Resistive
    • or
  • 60 AMP @ 480 VAC General Purpose
• Contact Resistance: .002 ohm
  • After Cycling Under Load
• Coil: 120V 50/60 Hz
• Coil Terminals: #6 Binding Head Screws
• Load Terminals: 2-8 AWG Compression Type
• Dielectric Withstand: 2500 VAC RMS
• Longevity: Millions of Cycles
• Temperature Range: -35°C to 85°C

• 60NO Only
• AC Resistive
  • 240 VAC @ 60 AMPS
  • 480 VAC @ 60 AMPS
  • 600 VAC @ 48 AMPS
• Tungsten Lamp
  • 120 VAC @ 60 AMPS
• Motor Loads
  • Single Phase
    • Not Recommended

MDI 60NO120A, 60 amp Mercury Contactor, Single Pole, 120vac Coil, 600 max volts

MDI 260NO120A, 60 amp Mercury Contactor, Two Pole, 120vac Coil, 600 max volts

MDI 360NO120A, 60 amp Mercury Contactor, Three Pole, 120vac Coil, 600 max volts

MDI 460NO120A, 60 amp Mercury Contactor, Four Pole, 120vac Coil, 600 max volts

MDI 60NO24D, 60 amp Mercury Contactor, Single Pole, 24vdc Coil, 600 max volts

MDI 260NO24D, 60 amp Mercury Contactor, Two Pole, 24vdc Coil, 600 max volts

MDI 360NO24D, 60 amp Mercury Contactor, Three Pole, 24vdc Coil, 600 max volts

MDI 460NO24D, 60 amp Mercury Contactor, Four Pole, 24vdc Coil, 600 max volts

Anderson-Bolds
216-360-9800
www.anderson-bolds.com

Mercury Displacement Industries Mercury Contactors and Relays in 30, 35, 60 and 100 amps 

Carlo Gavazzi Motor Thermistor Relays

Anderson-Bolds can supply Motor Thermistor Relays for Monitoring Motor Temperatures


Carlo Gavazzi is pleased to announce their new DTA7 Series of Motor Thermistor Relays. They are capable of monitoring the temperature of up to six motors (via thermistors on the internal windings). This type of monitoring and control prevents false alarms, which may cause interruptions in production and expensive machine downtime.

There are also numerous improvements from our prior design, such as universal power supply (which reduces the available part numbers choices by 67%) and a bi-color LED which, through different colors and blinking statuses, provides diagnostics, i.e. Power ON, PTC failure(s), Alarm and the ready to RESET state.

One or two output versions are available to facilitate control of the motor(s), with two output devices having the ability to control other auxiliary devices, such as an alarm indicator lamp, PC or PLC.

The Carlo Gavazzi DTA7 Series are useful in most applications where motors are used, especially where overloads are frequent and may cause motor damage, i.e. pumping stations in water treatment, conveyors in materials handling and chillers in HVAC systems.


Main features of the DTA7 Series include:


35.5 mm Mini DIN housing, with screw terminals

1 SPDT (DTA71) or 2 SPDT relay output (DTA72)

Relay contacts are NEMA B300 rated @ 240 VAC

Output 1 is DE-ENERGIZED on alarm (DTA71/DTA72)

(Optional) Output 2 ENERGIZED on alarm (DTA72)

For pricing use our Carlo Gavazzi Parts Form

Anderson-Bolds

216-360-9800

info@anderson-bolds.com

ATC Stock at Anderson-Bolds

Automatic Timing and Control  ( ATC )  stock at Anderson-Bolds.
Call to order 216-360-9800 or use our contact form here.

1812000		ATC REFLECTOR
1812400		ATC REFLECTOR
1812600		ATC REFLECTOR
1815200		ATC REFLECTOR
1815300		ATC REFLECTOR
8256300		ATC SOCKET
8256400		ATC SOCKET
8256900		ATC SOCKET 11 pin spades
8256975		ATC HOLD DOWN (FOR 8256900)
8258100		ATC SOCKET
8258200		ATC SOCKET
8258500		ATC DIN/RAIL SOCKET 8 pin
8258600		ATC 11 PIN SURF/DIN RAIL SCKT
700221001		ATC 3" TARGET REFLECTOR
3042750001		ATC MOTOR, 12 RPM
3052656170		ATC RETROFIT KIT
3142600700		ATC SOCKET KIT
3190250200		ATC RETAINING CLIP
3190250600		ATC RETAINING CLIP
3192614400		ATC MOUNTING BRACKET
3192614500		ATC SOCKET KIT
3252606200		ATC SURFACE MOUNTING BRACKET
3282600100		ATC SOCKET KIT
3282600200		ATC KIT
3390250300		ATC HOLD DOWN FOR 8258500
3393200100		ATC BRACKET
3532602700		ATC SURFACE MTG. BRACKET ASSY.
3655900200		ATC BLUE KNOB
3655900300		ATC BLACK KNOB
3762601500		ATC HOUSING
4053200200		ATC PANEL MOUNTING BRACKET
4054500100		ATC GASKET
4070251300		ATC HOLD DOWN CLIP FOR 8258500
4220250200		ATC HOLD DOWN CLIP FOR 8258500
70632702100		ATC REFLECTION SENSOR (E20055)
70632702200		ATC REFLECTION SENSOR (E20071)
70632710100		ATC FIBER OPTIC CABLE
70632711100		ATC FIBER OPTIC CABLE
ARA120ABA		ATC / Diversified Relay
AT11DN.120		ATC TIMER  (TENOR)
GX7-P42E		ATC TIMER/counter (TENOR)
LE3S		ATC UNIVERSAL DIGITAL TIMER
MC6MS-25   DC24V		ATC PUSHBUTTON RESET COUNTER
S100BS-120-R		ATC STROBE LIGHT
TZ4ST-24S		ATC (TENOR) TEMP.CONTROLLER
22321XX		ATC NEMA 12 MOLDED ENCLOSURE
305E006A10PX		ATC TIMER
305E016A10PX		ATC TIMER
309E022A04PX		ATC TIMER
309E049D04PX		ATC TIMER, 240/50
310E105A10PX		ATC COUNTER
319B006Q1X		ATC TDR 30 SEC. TIMER
319B349Q1X		ATC COUNTER
319E030F1C		ATC TIMER FM Approved
319E100F1C		ATC TIMER FM Approved
322B056A22CS		ATC TIMER
325A346A20PX		ATC TIMER
331B357K10XX		ATC TIMER
331B357Q10XX		ATC COUNTER
335B351A10PX		ATC TIMER
339B200Q2X		ATC TIMER 1 OR 10 SEC/MIN/HR
339B359Q2X		ATC TIMER, .3 OR 3 SEC/MN/HR
342B200F10PX		ATC TIMER 24-240 VAC / 24VDC
350-3-SPVC-5		ATC CABLE
354A350Q10PX		ATC COUNTER
355C347A30PX		ATC TIMER
356C350Q30PX		ATC COUNTER
365A300R30PK		ATC TIMER
365A300T30PX		ATC TIMER, 24 VAC
365C300Q30PX		ATC TIMER
365M300Q30PX		ATC TIMER WITH MEMORY
366C400Q30PX		ATC COUNTER
366C400R30PX		ATC COUNTER 240V 50/60HZ
405AR100S2X		ATC TIMER
405A100E1X		ATC TIMER, 12 VDC
405A100E2X		ATC TIMER
405A100FKK-J01210-00		ATC TIMER, SPEC J01210-00
405A100F2X		ATC 1 OR 10 SEC/MIN/HR TDR
405A500F2X		ATC 5 OR 50 SEC/MIN/HR TDR
405A-J01328-01		ATC TIMER
407B100F3X		**OBSOLETE OCT. 2012 -
409A500F2X		ATC TIMER 5 OR 10 SEC/MIN/HR
417B100F2K		ATC TIMER
422AR100S0X		ATC TIMER
422A100F10X		ATC TIMER OFF/ON REPEAT CYCLE Obsolete
422A100F30X		ATC TIMER ON/OFF REPEAT CYCLE
422A500F10X		ATC TIMER OFF/ON REPEAT CYCLE Obsolete
423A300F10XX		ATC TIMER
425A300Q10XX		ATC TIMER
425A300Q20XD		ATC TIMER
5508JE12240W43041010		TCP THERMOCOUPLE
5508JE336W430440		TCP THERMOCOUPLE
5508JE736W430440		TCP THERMOCOUPLE
5706B611XX		ATC TIMER
5708A		ATC TIMER
600-3-0011		ATC SOCKET 8-PIN SCREW TERM.
600-3-0012		ATC SOCKET
655-8-1001		ATC TIMER
7081AS4X4NLX		ATC BEAM SWITCH
7082AD4X4NLX		ATC BEAM SWITCH
7083AR4D4NLX		ATC BEAM SWITCH
7211A1QX		ATC MASTER LIGHT OPERATER
7232AD2D5FRX		ATC BEAM SWITCH
7233AR0X5FRX		ATC BEAM SWITCH
7242AD2D5FRX		ATC BEAM SWITCH
7243AR0D5FRX		ATC BEAM SWITCH
7253AR0X3ASX		ATC BEAM SWITCH
7261AS4X4FRX		ATC BEAM SWITCH
7262AD4D4FRX		ATC BEAM SWITCH
7263AR4X4FRX		ATC BEAM SWITCH
7605AR04N12NQ		ATC PHOTOELEC SENSOR
7691ASE04DS2X		ATC PHOTO SENSOR
7700-025-01-00		ATC CABLE 2 METER
7703AR04N3BQP		ATC LASER SENSOR
7703BR04N3BPT		ATC THRU BEAM LASER SWITCH
7703BR04N3BQP		ATC LASER SENSOR
7708AR04N3BPT		ATC PHOTOELEC SENSOR
7708BR04N3BQP		ATC LASER PHOTOELECTRIC SENSOR
7864AD4X4FRX		ATC PHOTO SENSOR

216-360-9800
info@anderson-bolds.com

ATC timers, ATC photo electric switches, ATC laser switches, sockets, retrofit kits, Diversified voltage
products, Power alerts, Tenor Products, ATC

Solid State Contactors ~ Gavazzi

CARLO GAVAZZI
A u t o m a t i o n C o m p o n e n t s
Announces new Solid State Contactors and reversing contactors.


Carlo Gavazzi has announced the launch of the REC Series of 3-phase Solid State Contactors and Reversing Contactors. The REC Series is twenty times more durable than equivalent mechanical contactors and succeeds in handling high frequency switching. The REC Series is comprised of a 3-pole non-reversing version with three switched phases or a 3-pole non-reversing and reversing versions with two switched phases. The first solution eliminates direct connection from the power supply to motor, while the second one maintains the same performance level while providing relevant cost reduction. The REC is mechanically compatible with Carlo Gavazzi’s CGT-22 line of bimetallic overload modules, by means of a plastic adapter.
In addition to competitive pricing, the REC Series assures substantial savings, as it
reduces system downtime and maintenance costs. The solid state contactors are provided
with a 1,600 Vp blocking voltage option that enhances their surge current ratings.
The REC Series is cUL listed as a motor starter and complies with the NMFT/NMFT7
requirements. The main technical features include:


• REC2 / REC3 – direct starting of
3-phase motors up to 5Hp at 480VAC
• REC2R – direct starting and reversing of
3-phase motors up to 5Hp at 480VAC
• Full load rating at 40°C / 104°F
• Instant-on switching
• Rated operational voltage up to 600VAC
• AC or DC control options
• Mechanical contactor resemblance with
covered heat sink
• Connects to CGT-22 overload module
• Control status LED indication
• DIN-rail or panel mounting
• cULus listed, CE and RoHS compliant


REC is an electronic contactor intended to replace the traditional mechanical counterpart used to switch three phase motors. The range includes 2 and 3 phase switching versions up to 4kW and 600Vrms.
Options with high surge current and I²t for fusing purposes are also available. The relay switches instantaneously upon application of the control voltage to emulate mechanical relay operation. A covered heatsink resolves any issues with regards to cables running close to the heatsink and eliminates the need for protective earth cabling. The product can be mounted on DIN-rail or on a panel. Note:
Specifications stated at 25°C unless specified.


The solid state contactors are available from Carlo Gavazzi’s North American authorized stocking distributor Anderson-Bolds.

Timers and Time Delay Relays

Click here for Anderson-Bolds timers

Time Delay Relays
Time Delay Relays all include a combination of a solid state timing circuit and an electromechanical relay output. This combination provides the user with isolation between the operating and load voltages and multiple switching contacts in either SPDT or DPDT forms. Most of the relay contacts are rated 10 amps resistive @ 240 VAC. Many are in the popular octal plug-in package and require the purchase of a socket. Others surface mount with one or two screws and have male 0.25" quick connect terminals. Some are encapsulated to protect the solid state circuitry. A large selection of time delay ranges and adjustment methods are available.

Timing Modules
All popular functions are available in this group of totally solid state timing modules. They contain no moving parts so 100 million operations is typical. They are encapsulated to protect their analog or digital solid state circuitry. A large selection of time delay ranges are available, knob or switch adjustment, or external adjustment, or factory fixed time delays can be ordered.

Some timer and timer delay modes of operation:

DELAY ON MAKE
(On Delay, Delay on Operate, Operate Delay, Prepurge Delay)

OPERATION/TIME DIAGRAM

OPERATION: Upon application of power, the time delay begins. The output is de- energized before and during the time delay. At the end of the time delay, the output is energized (relay is transferred) and remains energized until power is removed.

RESET: Removing power resets the time delay and output.

INTERVAL
(On Interval, Interval On, Pulse Shaping, Bypass Timing)

OPERATION/TIME DIAGRAM

OPERATION:Upon app

lication of power, the time delay begins. The output is energized (relay is transferred) during the time delay. At the end of time delay, the output is de-energized and remains de-energized until power is removed.
RESET: Removing power resets the time delay and the output.

RECYCLING

(Recycle Timing, Repeat Cycle, Duty Cycling)

OPERATION/TIME DIAGRAM (ON TIME FIRST)

OPERATION: Upon application of power, the output is energized (relay is transferred) and the ON time begins. At the end of the ON time, the output de-energizes and the OFF time begins. At the end of the OFF time, the output is energized and the cycle repeats as long as power is applied. The OFF time may be the first delay in some recycling timers.

RESET: Removing power resets the output and time delays, and returns the sequence to the first delay.

SINGLE SHOT
(One Shot Relay, Single Shot Interval, Pulse Shaping)

OPERATION/TIME DIAGRAM

OPERATION:Power must be applied to the input before and during timing. Upon momentary or maintained closure of the initiate sw

itch (leading edge triggered), the output is energized (relay is transferred) for a measured interval of time. At the end of the delay, the output de-energizes. Opening or reclosing the initiate switch during timing has no effect on the time delay.

RESET:Reset occurs when the time delay is complete and the initiate switch is opened. Loss of power resets the time delay and output.

DELAY ON BREAK

(Off Delay, Release Delay, Delay on Release, Postpurge Delay)

OPERATION/TIME DIAGRAM

OPERATION:Power must be applied to the input before and during timing. Upon closure of the initiate switch, the output is energized (relay is transferred). The time delay begins when the initiate switch is opened (trailing edge triggered). The output remains energized during timing. At the end of the time delay, the output is de-energized. The output will energize if the initiate switch is closed when power is applied.

RESET:Reclosing the initiate switch during timing resets the time delay. Loss of power resets the time delay and output.

Click here for Anderson-Bolds timers

Safety Systems and Fail safe

Understanding the Fail-Safe Concept
Principle of SafetyThe fail-safe concept monitors the sensor status at all times. In the event of a failure, the fail-safe concept will simulate a protected position. The “protected” position is when the sensor is activated (closed) and the “normal” or “run” position is when the sensor is not activated (open).

- Normal Conditions – constant current flow (I) holding relay coil (K1) energized- Loss of Power – no current flow (I) and relay coil (K1) is de-energized- Actuation of Sensor – relay coil (K1) is shorted and de-energized- Failure of Sensor in the closed position – relay coil (K1) is shorted and de-energized- Failure of Sensor in the open position – (broken wire, switch or conductor) interupts current flow (I)and relay coil (K1) is de-energized- Resistor R – limits current flow through the sensor when actuated
Fail-Safe (4 wire system)
Fail-Safe is a shorthand term used to mean Fail to a Safe condition. In machinery with known hazards, the system is fail-safe when any failure leaves the machinery in a safe condition. The 4-wire fail-safe concept is illustrated in the figure above. A small current is constantly flowing through the sensor at all times, holding the relay coil energized at all times. The machine controls, interrupt, or stop circuitry is connected to the contacts of this relay. If the sensor is actuated, the relay coil will be shorted, causing the relay to deenergize. A resistor in series provides current limiting from overdrawing the power supply and limits the current through the sensor in the actuated position. If the sensor fails in the closed position the relay will be shorted and cannot be energized until the failure is corrected. If the sensor fails in the open position, the current path for the relay coil no longer exists and the relay coil cannot be energized until the current path is restored and the failure corrected.
In addition to the safety aspects achieved with Fail-Safe, it also provides:
- Isolation of the machine controls and sensor(s)- Isolation of high amperage and high voltage machine switching from the low voltage sensors- Conversion of a normally-open switch to required normally closed machine controls

Tapeswitch manufacturers safety light curtains, safety mats and safety Tapeswitches.

View Tapeswitch Products at Anderson-Bolds
216-360-9800