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Supplier: Caterpillar Electric Power
Description: Caterpillar offers one of the broadest ranges of transfer switch products in the marketplace and incorporates a solutions-based approach for CSA/UL/IEC listed applications. Cat® ATS products offer differentiated features that simplify installation, operation, and system integration;
- Features: High Inrush Current (>100A) Compatible, CSA Certification, UL Listed
- Maximum AC Voltage Rating: 600 volts
- Maximum Current Rating: 40 to 400 amps
- Number of Poles: 2 to 4
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Supplier: SOCOMEC
Description: version is a combination of three interlocked 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
- Features: Locking
- Maximum AC Voltage Rating: 220 to 690 volts
- Maximum Current Rating: 125 to 3200 amps
- Maximum Power Rating: 55000 to 450000 watts
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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
- Features: Locking
- Maximum Current Rating: 125 to 3200 amps
- Number of Poles: 3 to 4
- Phase: Single-Phase
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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
- Features: UL Listed
- Maximum Current Rating: 100 amps
- Maximum Power Rating: 24000 watts
- Number of Poles: 2
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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
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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
- Features: Locking
- Maximum AC Voltage Rating: 208 to 277 volts
- Maximum Current Rating: 125 to 3200 amps
- Number of Poles: 3 to 4
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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
- Features: Locking
- Maximum AC Voltage Rating: 660 volts
- Maximum Current Rating: 4000 to 6300 amps
- Number of Poles: 3 to 4
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Supplier: Columbia Machine, Inc.
Description: / CSA rated control panel Machine mounted guarding Overhead pivot pole cord switch OPTIONS Cold Climate Package Automatic pallet height adjustment Receiving deck shim kit Stainless steel paint for wash down applications 3-way handling of outbound loads Pole Cord Switch
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Supplier: Columbia Machine, Inc.
Description: 24 VDC controls UL / CSA rated control panel Machine mounted guarding Overhead pivot pole cord switch Automatically dispenses "go to" pallet OPTIONS Cold Climate Package Automatic pallet height adjustment
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Supplier: Columbia Machine, Inc.
Description: VAC power supply 24 VDC controls UL / CSA rated control panel Machine mounted guarding Overhead pivot pole cord switch Automatically dispenses "go to" pallets Panelview Plus touchscreen HMI OPTIONS Cold
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Supplier: Columbia Machine, Inc.
Description: Allen Bradley PLC controls 230, 460 or 575 VAC power supply 24 VDC controls UL / CSA rated control panel Machine mounted guarding Overhead pivot pole cord switch OPTIONS Cold Climate Package Receiving deck shim kit Pallet cart shim kit Stainless steel paint for wash down applications
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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
- Configuration: Other
- Min Operating Current: 0.5700 mA
- Package Type: Other
- RoHS Compliant: Yes
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Supplier: Qorvo
Description: The QM11024 is a low loss, high linearity dual-pole four-throw addressable switch with performance optimized for transfer routing applications. The QM11024 integrates a serial control system compatible with the RFFE standard. The select lines (SID) provide USID addressability
- Configuration: Other
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Supplier: Waytek, Inc.
Description: Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media Connection: 1/8" NPT male brass Long-life elastomer diaphragm High-quality snap-action switch Pneumatic and hydraulic applications Circuit transfer at rising set point NEMA 4, 13
- Accuracy: 5 ±% FS
- Number of Poles: Single Pole
- Number of Throws: Double Throw
- Pressure Reading: Gauge
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Supplier: Waytek, Inc.
Description: Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media Connection: 1/8" NPT male brass Long-life elastomer diaphragm High-quality snap-action switch Pneumatic and hydraulic applications NEMA 4, 13 Circuit transfer at rising set point
- Accuracy: 5 ±% FS
- Number of Poles: Single Pole
- Number of Throws: Double Throw
- Pressure Reading: Gauge
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Supplier: Waytek, Inc.
Description: Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media Connection: 1/8" NPT male brass Long-life elastomer diaphragm High-quality snap-action switch Pneumatic and hydraulic applications NEMA 4, 13 Circuit transfer at rising set point
- Accuracy: 5 ±% FS
- Number of Poles: Single Pole
- Number of Throws: Double Throw
- Pressure Reading: Gauge
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Supplier: Waytek, Inc.
Description: Tolerance: +/- 1 PSI or 5% Max. Operating Pressure: 2000 PSI Media Connection: 1/8" NPT male brass Long-life elastomer diaphragm High-quality snap-action switch Pneumatic and hydraulic applications Circuit transfer at rising set point NEMA 4, 13
- Accuracy: 5 ±% FS
- Number of Poles: Single Pole
- Number of Throws: Double Throw
- Pressure Reading: Gauge
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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
- Configuration: Other
- Package Type: Other
- RoHS Compliant: Yes
- Supply Voltage (VS): 1.8 volts
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Supplier: Eaton Corporation
Description: MANUAL TRANSFER TYPE UL APPROVAL NEMA 3R ENCLOSURE 800 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
- Approvals: UL
- Current Rating: 800 amps
- Horsepower Rating: 50 to 350 HP
- Operating Voltage: 600 volts
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Supplier: Eaton Corporation
Description: MANUAL TRANSFER TYPE UL APPROVAL NEMA 1 ENCLOSURE 600 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
- Approvals: UL
- Current Rating: 600 amps
- Horsepower Rating: 50 to 350 HP
- Operating Voltage: 600 volts
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Supplier: Eaton Corporation
Description: MANUAL TRANSFER TYPE UL APPROVAL NEMA 3R ENCLOSURE 600 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
- Approvals: UL
- Current Rating: 600 amps
- Horsepower Rating: 50 to 350 HP
- Operating Voltage: 600 volts
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Supplier: Eaton Corporation
Description: MANUAL TRANSFER TYPE UL APPROVAL NEMA 1 ENCLOSURE 800 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
- Approvals: UL
- Current Rating: 800 amps
- Horsepower Rating: 50 to 350 HP
- Operating Voltage: 600 volts
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Supplier: ValueTronics International, Inc.
Description: reed 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
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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
- Changeover (CO): 0.0
- Coil Resistance: 3000 ohms
- DC Coil Voltage: 24 volts
- Maximum Current: 0.5000 amps
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Supplier: Thermik Corporation
Description: switchgear is supported by the spring snap-in disc (3) with the contact bridge (1) acting as a transfer element for electric current which is held between a supporting collar and a circumferential ring. As such, the bimetallic disc (4) underlying it, that is also stuck out from the
- Contact Configuration: Switch Type: Normally Closed, NC
- Features: Automatic Reset
- High Temperature Set Point: 158 to 392 F
- Life Cycles: 10000 Number of Cycles
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Supplier: Thermik Corporation
Description: switchgear is supported by the spring snap-in disc (3) with the contact bridge (1) acting as a transfer element for electric current which is held between a supporting collar and a circumferential ring. As such, the bimetallic disc (4) underlying it, that is also stuck out from the
- Contact Configuration: Switch Type: Normally Closed, NC
- Features: Automatic Reset
- High Temperature Set Point: 158 to 356 F
- Life Cycles: 10000 Number of Cycles
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Supplier: Thermik Corporation
Description: switchgear is supported by the spring snap-in disc (3) with the contact bridge (1) acting as a transfer element for electric current which is held between a supporting collar and a circumferential ring. As such, the bimetallic disc (4) underlying it, that is also stuck out from the
- Contact Configuration: Switch Type: Normally Closed, NC
- Features: Automatic Reset
- High Temperature Set Point: 158 to 392 F
- Life Cycles: 10000 Number of Cycles
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Supplier: Thermik Corporation
Description: switchgear is supported by the spring snap-in disc (3) with the contact bridge (1) acting as a transfer element for electric current which is held between a supporting collar and a circumferential ring. As such, the bimetallic disc (4) underlying it, that is also stuck out from the
- Contact Configuration: Switch Type: Normally Closed, NC
- Features: Automatic Reset
- High Temperature Set Point: 158 to 356 F
- Life Cycles: 10000 Number of Cycles
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Supplier: Richardson RFPD
Description: rise times Source Sense (SS) pin for optimized gate drive Reverse conduction capability Zero reverse recovery loss RoHS 3 (6+4) compliant Applications Bridgeless Totem Pole PFC Consumer, Industrial and Datacenter High Density Power
- Package Type: Other
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Supplier: RS Components, Ltd.
Description: 2 pole plug-in relay, each contact in the contact mechanism performs alternate make-break operation at each pulse input and is thus ideal for alternate operation or transfer/switching operation of a motor. Contact Rating 5A@ 220 V ac/ 24 V dc. Unique ratchet mechanism assures positive
- Voltage: 230 volts
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Supplier: Tele-Lite, Inc.
Description: Automatic 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
- Applications: Standby
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Supplier: RS Components, Ltd.
Description: 2 pole plug-in relay, each contact in the contact mechanism performs alternate make-break operation at each pulse input and is thus ideal for alternate operation or transfer/switching operation of a motor. Contact Rating 5A@ 220 V ac/ 24 V dc. Unique ratchet mechanism assures positive
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Description: this standard. - 3 Terms and definitions: Added definitions for capacitor switching classes. - 4.1 Rated voltage: Added 15, 17,5 and 24 kV as standard voltage values. - 4.109.2 Starting duty of reduced-voltage starters: Added ratings for autotransformer and reactor starters (was
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Supplier: RS Components, Ltd.
Description: switches. Standards & Approvals BS EN 60947-5-1, BS EN 60947-5-5, BS 5304 Series = GWN Reset Button = Yes Pole Configuration = 4P Normal State Configuration = 2NO/2NC Mounting Orientation = Straight Maximum Rope Span = 100m Maximum Current = 6 A Maximum AC Voltage = 415V Maximum
- Pendant Type: Control Pendant
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Supplier: CSA Group
Description: this standard. - 3 Terms and definitions: Added definitions for capacitor switching classes. - 4.1 Rated voltage: Added 15, 17,5 and 24 kV as standard voltage values. - 4.109.2 Starting duty of reduced-voltage starters: Added ratings for autotransformer and reactor starters (was
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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 .