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Supplier: Caterpillar Electric Power
Description: based Cat ATS features include: Mechanically and electrically operated contactor and/or breaker Available in 2, 3, and 4 pole versions UL, IEC, and CSA listed NEMA 1, 3R, 4, 4X and 12 enclosures Meet the requirements of NFPA 110, 99, and 70 IBC certification
- Maximum Current Rating: 40 to 4,000 amps
- Maximum AC Voltage Rating: 600 volts
- Number of Poles: 2 to 4
- Switch Control: Automatic Transfer Control
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Supplier: SOCOMEC
Description: switches enabling use with 3 + 6 poles or 4 + 8 poles. They provide switching, source inversion and transfer under load for two low voltage power circuits, as well as their safety isolation by double breaking per pole. Advantages A complete product range
- Maximum Current Rating: 125 to 3,200 amps
- Maximum AC Voltage Rating: 220 to 690 volts
- Maximum Power Rating: 55,000.00000000001 to 450,000.00000000006 watts
- Number of Poles: 3 to 4
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Supplier: Qorvo
Description: The QM11022A is a dual-pole double-throw transfer switch designed for general purpose switching applications where RF port transfer (port swapping) control is needed. The low insertion loss along with excellent linearity performance makes the QM11022A ideal for multi-mode GSM,
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Supplier: Electric Generators Direct
Description: 100-A Indoor Automatic Transfer Switch w/ 14-Circuit Load Center •Perfect for backing up emergency circuits Steel NEMA-1 Indoor Enclosure •Electrostatically applied and baked powder paint Breakers: •4 x 15A (120V) 1-Pole •6 x 20A (120V) 1-Pole •1 x 20A (240V)
- Maximum Current Rating: 100 amps
- Maximum Power Rating: 24,000.000000000015 watts
- Number of Poles: 2
- Switch Control: Automatic Transfer Control
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Supplier: SOCOMEC
Description: ATyS p are three-phase automatic transfer switches, 3 or 4 poles, with positive break indication. They incorporate all the functions offered by the ATyS t and g, as well as functions designed for power management and communication. In automatic mode they enable the
- Maximum Current Rating: 125 to 3,200 amps
- Number of Poles: 3 to 4
- Switch Control: Automatic Transfer Control
- Features: Locking
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Supplier: Qorvo
Description: The QM11022 is a dual-pole double-throw transfer switch designed for general purpose switching applications where RF port transfer (port swapping) control is needed. The low insertion loss along with excellent linearity performance makes the QM11022 ideal for multi-mode GSM,
- Supply Voltage (VS): 2.4 to 5.5 volts
- Min Operating Current: 0.57 mA
- Features: Other
- Standards and Certifications: RoHS Compliant
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Supplier: SOCOMEC
Description: The ATyS d H is a three-phase transfer switch, 3 and 4 poles, designed for low voltage high power applications that require a high performance and fast reliable switching. The open transition transfer is performed on-load in line with IEC 60947-6-1 and GB 14048-11
- Maximum Current Rating: 4,000 to 6,300 amps
- Maximum AC Voltage Rating: 660 volts
- Number of Poles: 3 to 4
- Features: Locking, Other
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Supplier: SOCOMEC
Description: ATyS r and ATyS d are three-phase remotely operated motorised transfer switches, 3 or 4 poles, with positive break indication. They enable the on load transfer of two three-phase power supplies via remote volt-free contacts, from either an external automatic
- Maximum Current Rating: 125 to 3,200 amps
- Maximum AC Voltage Rating: 208 to 277 volts
- Number of Poles: 3 to 4
- Features: Locking, Other
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Supplier: Columbia Machine, Inc.
Description: LTS Load Transfer Station Operated by the forklift driver, the Basic Load Transfer Station pallet transfer machine is made up of a frame, receiving deck and transfer plate. Since the LTS hydraulic and electrical components are self-contained, it can be loaded from two
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Supplier: Columbia Machine, Inc.
Description: LT-35 Pallet-to-Pallet Load Transfer Station The Pallet-to-Pallet Load Transfer Station (LT 35) is ideal for transferring from wood to plastic or aluminum pallets. The forklift driver activates the LT 35 by using the overhead pull cord allowing the operator to cycle the machine from
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Supplier: Qorvo
Description: The QPC1220Q is a low loss, high linearity dual-pole four-throw addressable switch with performance optimized for transfer routing applications. The QPC1220Q integrates a serial control system compatible with the RFFE standard. The select lines (SID) provide USID addressability and up
- Supply Voltage (VS): 1.8 volts
- Min Operating Current: 0.36 mA
- Features: Other
- Standards and Certifications: RoHS Compliant
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Supplier: Eaton Corporation
Description: MANUAL TRANSFER TYPE UL APPROVAL NEMA 1 ENCLOSURE 400 AMPERE CURRENT RATING 250 HP AT 480 VAC 3 PHASE, 350 HP AT 600 VAC 3 PHASE, 50 HP AT 250 VDC POWER RATING 4 POLE(S) NO NEUTRAL TYPE 600 V AC VOLTAGE RATING 250 V DC VOLTAGE RATING NON FUSIBLE FUSE PROVISION APPLICABLE
- Current Rating: 400 amps
- Operating Voltage: 600 volts
- Horsepower Rating: 50 to 350 HP
- Power: AC, DC
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Supplier: Waytek, Inc.
Description: Nason LM-2C-50R/WLAT Low Pressure Switches Category: Low Pressure Switches Manufacturer: Nason 18"-18 Ga. UL 3173 wire leads Current Rating (125/250 VAC): 10A Current Rating (30 VDC): 5A Circuit Form: SPDT Set Point Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media
- Working Pressure Range: 2,000 psi
- Accuracy: 5 ±% FS
- Switched Current: 10 amps
- Switched AC Volts: 125 to 250 volts
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Supplier: Waytek, Inc.
Description: Nason LM-2C-20R/WLAT Low Pressure Switches Category: Low Pressure Switches Manufacturer: Nason 18"-18 Ga. UL 3173 wire leads Current Rating (125/250 VAC): 10A Current Rating (30 VDC): 5A Circuit Form: SPDT Set Point Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media
- Working Pressure Range: 2,000 psi
- Accuracy: 5 ±% FS
- Switched Current: 10 amps
- Switched AC Volts: 125 to 250 volts
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Supplier: Waytek, Inc.
Description: Nason LM-2C-90R/WLAT Low Pressure Switches Category: Low Pressure Switches Manufacturer: Nason 18"-18 Ga. UL 3173 wire leads Current Rating (125/250 VAC): 10A Current Rating (30 VDC): 5A Circuit Form: SPDT Set Point Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media
- Working Pressure Range: 2,000 psi
- Accuracy: 5 ±% FS
- Switched Current: 10 amps
- Switched AC Volts: 125 to 250 volts
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Supplier: Waytek, Inc.
Description: Nason LM-2C-70R/WLAT Low Pressure Switches Category: Low Pressure Switches Manufacturer: Nason 18"-18 Ga. UL 3173 wire leads Current Rating (125/250 VAC): 10A Current Rating (30 VDC): 5A Circuit Form: SPDT Set Point Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media
- Working Pressure Range: 2,000 psi
- Accuracy: 5 ±% FS
- Switched Current: 10 amps
- Switched AC Volts: 125 to 250 volts
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Supplier: ValueTronics International, Inc.
Description: relays. Additional Features: SPDT Coaxial Switch Frequency range: DC-18GHz Insertion Loss: <0.20 dB, DC-2 GHz; <0.50 dB, 2-18 GHz Isolation Between Ports: >90 dB, dc-18 GHz SWR Through Line: <1.10, DC-2 GHz; <1.20, 2-12.4 GHz; <1.30, 12.4-18 GHz Into Internal 50ΩLoad: <1.10, DC-2 GHz;
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Supplier: Pickering Electronics
Description: The Series 97 is a range of reed relays with pins in the popular Dual-in-Line format. Being encapsulated in a plastic package using a very high resistivity epoxy resin gives the device several advantages over the more usual moulded construction. The reed switches are not subjected to the high
- Normally Open (NO): 1
- Normally Closed (NC): 0
- Changeover (CO): 0
- Maximum Current: 0.5 amps
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Supplier: Columbia Machine, Inc.
Description: LTS-PD-IC-OC Fully Automatic LTS System The Fully Automatic LTS System combines a pallet stacker, pallet dispenser, infeed conveyor and a powered outfeed cart. Fully Automated LTS units receive loads from a conveyor, transfers the load from one load base to another, stacks the "go from"
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Supplier: Thermik Corporation
Description: Three-pole (normally closed) for three phase AC current use in the star point Resets automatically With epoxy Mylar®-Nomex® Switchgear consisting of a mobile and circumferential contact bridge (1), a contact bearing pin (2), a spring snap-in disc (3) and a bimetallic disc (4) which is
- High Temperature Set Point: 158 to 392 F
- Maximum Current: 6.3 amps
- Maximum AC Voltage: 440 volts
- Life Cycles: 10,000 Number of Cycles
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Supplier: Allied Electronics, Inc.
Description: Input voltage must first be applied. Upon closure of the control switch, the relay contacts transfer and hold. Upon opening the control switch, a preset time begins. At the end of the preset time, the relay contacts return to their normal condition. Any application of the control switch will
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Supplier: Allied Electronics, Inc.
Description: Input voltage must first be applied. Upon closure of the control switch, the relay contacts transfer and hold. Upon opening the control switch, a preset time begins. At the end of the preset time, the relay contacts return to their normal condition. Any application of the control switch will
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Supplier: Allied Electronics, Inc.
Description: Upon application of input voltage, the “Off” time begins. At the end of the “Off” time, the “On” time begins and the relay contacts transfer. When the On time is completed, the relay contacts transfer to the normal condition and hold. Input voltage must be removed and reapplied to
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Supplier: Richardson RFPD
Description: RoHS 3 (6+4) compliant Applications Bridgeless Totem Pole PFC Consumer, Industrial and Datacenter High Density Power Supply High Power Adapters LED Lighting Drivers Appliance and Industrial Motor Drives Solar Inverter Uninterruptable Power Supplies Laser Drivers Wireless Power
- Features: Other
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Supplier: Allied Electronics, Inc.
Description: Upon application of input voltage, the “Off” time begins. At the end of the “Off” time, the “On” time begins and the relay contacts transfer. The sequence is repeated until input voltage is removed. Features: 16 Timing Ranges in a Single Timer Covers 0.1 S to 2 H (0.6 S to 24 H on TR-631,
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Supplier: RS Components, Ltd.
Description: Designed to offer grabwire switch protection for personnel working in close proximity to conveyors or rotating and moving machines in various environments. Typical applications: - conveyors, assembly lines, transfer lines, packaging machinery, process equipment. Grabwire switches are a
- Pendant Type: Control Pendant
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Supplier: CSA Group
Description: devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. This standard cancels and replaces the second edition of IEC 60470
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Description: devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. This standard cancels and replaces the second edition of IEC 60470
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Supplier: Tele-Lite, Inc.
Description: Transfer Switches, weather enclosures, sub base tanks and circuit breaker. 12V DC electric start. 100% full load tested for 100% block loading. John Deere industrial diesel engine. Full status monitor provides system monitoring of low oil pressure, high coolant temperature, overspeed
- Applications: Standby
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Supplier: ValueTronics International, Inc.
Description: The 1625-2 is an earth ground tester from Fluke. Additional Features: 3-and 4-pole Fall of Potential, earth resistance loop testing 4-pole Soil Resistivity testing Selective earth ground rod testing using 1 clamp Stakeless earth ground rod testing using 2 clamps IP56
- Features: Ground Bond Testers
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Supplier: Sensata Technologies
Description: configurations. The single pole satisfies most applications. The two-pole version is often used for extra safety in products that utilize high voltage or where current sensing and breaking of both sides of the line is required. Quick connect terminals are standard, UNC 8-32 or M4 screw
- Trip System Type: Magnetic-Hydraulic Circuit Breakers
- Manual Actuator Type: Rocker
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Supplier: Sonel Test
Description: measurement of lightning protection systems with a measuring impulse ramp of 4/10 μs, 8/20 μs, 10/350 μs 3-pole and 4-wire method – measurement of earthing systems using auxiliary probes 3-pole method with clamp – measurement of earthing systems with multiple earth
- Display: Digital Meter
- Testing Method: Manual
- Features: Other
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Supplier: ValueTronics International, Inc.
Description: pass, band pass and bandstop filtering Isolated Input Module Connector: Guarded banana jack Bandwidth: 200 kHz 4 pole Bessel Maximum Rated Input: ± 250 Vrms or DC Maximum Transient Input: ± 800 V Isolation: 250 Vrms, channel to channel, channel to chassis Specified Ranges: 100 mVFS to
- Data Acquisition: Datalogger / Recorder
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Proper grounding of on-site electric power systems
For a three phase 4 wire grounded system, they include (1) using a 3 pole transfer switch with the engine generator set considered as a non-separufely derived source, (2) using a 4 pole transfer switch with the engine generator set considered …
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CR4 - Thread: Neutral Ground Connection
Are you using a 3 pole or a 4 pole transfer switch ?
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Switching the Neutral Conductor and its Effect on UPS Performance and the Countermeasure - Conference papers - VDE Publishing House
In order to meet the needs of ground fault protection (GFP) for low voltage distribution system, the 4 pole automatic transfer switch ( 4 pole ATS) must be used for the transfer switch circuit between commercial power (utility power) and standby generator set.
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More about standby generator grounding, GFP, and currents that go bump in the night
Abstract - The issue of generator grounding, separately denived systems, and the application of 3-pole and 4 - pole transfer switches continuesto be misunderstood and misapplied by design engineers in spite of several IEEE papers on the subject.
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McGraw-Hill's National Electrical Code® 2014 Handbook, Twenty-Eighth Edition > Chapter Two
• 4 - pole transfer switch .
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McGraw-Hill's National Electrical Code 2011 Handbook, 27th Edition > ARTICLE 250. GROUNDING AND BONDING
• 4 - pole transfer switch .
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IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems
Various solutions include single-point grounding, 4 - pole transfer switches , overlapping neutral contacts, and transformer isolation.
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Neutral grounding-nothing new-tral about it [power network protection]
This paper includes a self-guiding chart (Fig, 5) to help in selecting a Code-complying 3- or 4 - pole transfer switch scheme.
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Grounding and ground fault protection considerations specific to emergency/standby generator sets
Generally, whenever a zero-sequence-type (core balance) sensing function for ground fault current is used on either source, or may be in the future, 4 - pole transfer switches and grounding the generator neutral locally as a separately-derived system are recommended.
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McGraw-Hill's National Electrical Code® 2014 Grounding and Earthing Handbook > NEC 250 PART II: SYSTEM GROUNDING
In Fig 5.6 we the complete wiring with grounding for an electrical system with an emergency generator connected via a 4 - pole transfer switch .