Power Relays G7Z Multi-pole Power Relay for Carrying and Switching Contactor Current Range of 40 A at 440 VAC • 40 A can be carried and switched on each of 4 poles. • Possible to reach a maximum load capacity of 160 A when using 4-pole parallel connections. • EN 60947-4-1 certification for mirror contact mechanisms has been obtained by using a combination of the relay and auxiliary contact blocks. • Typical applications: high current or high inrush power supplies, commercial and industrial. • RoHS compliant. Model Number Structure ■ Model Number Legend Relay with Auxiliary Contact Block Auxiliary Contact Block G7Z- @ - @ @ G73Z- @ @ 1 2 3 1. Relay Contact Configuration 4A: 4PST-NO 3A1B: 3PST-NO/SPST-NC 2A2B: DPST-NO/DPST-NC 2. Contact Configuration of Auxiliary Contacts 20: DPST-NO 11: SPST-NO/SPST-NC 02: DPST-NC 3. Contact Mechanism of Auxiliary Contacts Z: Bifurcated crossbar contact 1 2 1. Contact Configuration of Auxiliary Contacts 20: DPST-NO 11: SPST-NO/SPST-NC 02: DPST-NC 2. Contact Mechanism of Auxiliary Contacts Z: Bifurcated crossbar contact ■ Configuration Structure Contact configuration Relay Auxiliary Contact Block Classification Relay with Auxiliary Contact Block 4 poles + 2 poles 4PST-NO 3PST-NO/SPST-NC DPST-NO/DPST-NC Auxiliary Contact Block 2 poles — DPST-NO SPST-NO/SPST-NC DPST-NC DPST-NO SPST-NO/SPST-NC DPST-NC DPST-NO SPST-NO/SPST-NC DPST-NC DPST-NO SPST-NO/SPST-NC DPST-NC Screw terminals (See notes 1 and 2) G7Z-4A-20Z G7Z-4A-11Z G7Z-4A-02Z G7Z-3A1B-20Z G7Z-3A1B-11Z G7Z-3A1B-02Z G7Z-2A2B-20Z G7Z-2A2B-11Z G7Z-2A2B-02Z G73Z-20Z G73Z-11Z G73Z-02Z Note: 1. Relay contact terminals are M5, and the coil terminals are M3.5. 2. Auxiliary contact block terminals are M3.5. Power Relays G7Z 329 Ordering Information ■ Relay with Auxiliary Contact Block ■ Accessories (Order Separately) Relay with Auxiliary Contact Block (for Screw Terminals) Contact configuration DPST-NO SPST-NO/SPST-NC DPST-NC Contact configuration Relay Auxiliary contact block 4PST-NO DPST-NO SPST-NO/SPST-NC DPST-NC 3PST-NO/ DPST-NO SPST-NC SPST-NO/SPST-NC DPST-NC DPST-NO/ DPST-NO DPST-NC SPST-NO/SPST-NC DPST-NC Auxiliary Contact Block Rated voltage Model 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC 12, 24 VDC G7Z-4A-20Z G7Z-4A-11Z G7Z-4A-02Z G7Z-3A1B-20Z G7Z-3A1B-11Z G7Z-3A1B-02Z G7Z-2A2B-20Z G7Z-2A2B-11Z G7Z-2A2B-02Z Model G73Z-20Z G73Z-11Z G73Z-02Z Specifications ■ Ratings Coil Ratings Item Rated current Coil resistance Rated voltage 12 VDC 24 VDC 333 mA 154 mA 39 Ω 156 Ω Must operate Must release Maximum voltage Power voltage voltage consumption Percentage of rated voltage 75% max. 10% min. 110% Approx. 3.7 W Note: 1. Rated current and coil resistance were measured at a coil temperature of 23°C with coil resistance of ±15%. 2. Operating characteristics were measured at a coil temperature of 23°C. 3. The maximum allowable voltage is the maximum value of the fluctuation range for the Relay coil operating power supply and was measured at an ambient temperature of 23°C. There is, however, no continuous allowance. Contact Ratings Relay Auxiliary Contact Block G7Z-4A-@Z, G7Z-3A1B-@Z, G7Z-2A2B-@Z Item Load Resistive Inductive load Resistive load load cosφ = 0.3 L/R = 1 ms Contact structure Double break Contact material AgSnIn Rated load NO 40 A at 22 A at 5 A at 440 VAC 440 VAC 110 VDC NC 25 A at 10 A at 5 A at 440 VAC 440 VAC 110 VDC Rated carry NO 40 A 22 A 5A current NC 25 A 10 A 5A Maximum contact voltage 480 VAC 125 VDC Maximum contact NO 40 A current NC 25 A Maximum NO 17,600 VA 9,680 VA 550 W switching capacity NC 11,000 VA 4,400 VA 550 W Minimum load 2 A at 24 VDC Model Note: The ratings for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block. 330 Power Relays G7Z Model G73Z-20Z, G73Z-11Z, G73Z-02Z Load Resistive Inductive Resistive load load cosφ = load L/R = 0.3 1 ms Contact structure Double break Contact material AgSnIn + Ag Rotary Rated load 1 A at 0.5 A at 5 A at 440 VAC 440 VAC 110 VDC Rated carry current 1A Maximum contact voltage 480 VAC 125 VDC Maximum contact current 1A Maximum switching capacity 440 VA 220 VA 110 W Minimum load 1 mA at 5 VDC Item ■ Characteristics Classification Item Relay (See note 6.) Auxiliary contact block Model G7Z-4A-@Z, G7Z-3A1B-@Z, G7Z-2A2B-@Z Contact resistance (See note 2.) 100 mΩ max. Operating time (See note 3.) 50 ms max. Release time (See note 3.) 50 ms max. Maximum operating Mechanical frequency Rated load 1,800 operations/h G73Z-20Z, G73Z-11Z, G73Z-02Z 1,200 operations/h Insulation resistance (See note 4.) 1,000 MΩ min. Dielectric strength Between coil and contacts 4,000 VAC, 50/60 Hz for 1 min Between contacts of different polarity 4,000 VAC, 50/60 Hz for 1 min — Between contacts of the same polarity 2,000 VAC, 50/60 Hz for 1 min Impulse withstand voltage Between coil and contacts 10 kV, 1.2 x 50 μs Between contacts of different polarity 10 kV, 1.2 x 50 μs — Between contacts of the same polarity 4.5 kV, 1.2 x 50 μs Vibration resistance Destruction Shock resistance Endurance 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) Malfunction NO: 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) NC: 10 to 32 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) Destruction Screw mounting: 800 m/s2, DIN Track mounting: 500 m/s2 Malfunction NO: 100 m/s2 NO: 25 m/s2 Mechanical 1,000,000 operations min. (at 1,800 operations/h, contact no load) Electrical (See note 5.) AC resistive load: 80,000 operations AC inductive load: 80,000 operations DC resistive load: 100,000 operations (at 1,200 operations/h, rated load) Minimum load 2 A at 24 VDC Ambient operating temperature -25 to 60°C (with no icing or condensation) 1 mA at 5 VDC Ambient operating humidity 5% to 85% Weight Approx. 330 g Note: 1. The above values are initial values. 2. The contact resistance for the Relay (G7Z) was measured with 1 A at 5 VDC using the voltage drop method. The contact resistance for the auxiliary contact block (G73Z) was measured with 0.1 A at 5 VDC using the voltage drop method. 3. The operate time was measured with the rated voltage imposed with any contact bounce ignored at the ambient temperature of 23°C. 4. The insulation resistance was measured with a 1,000-VDC megohmmeter applied to the same places as those used for checking the dielectric strength. 5. The electrical endurance was measured at an ambient temperature of 23°C. 6. The specifications for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block. Power Relays G7Z 331 ■ Approved Standards UL Recognized (File No. E41643) - - Ambient Temp = 40°C Model G7Z Coil ratings 12, 24 VDC Contact ratings NO 40 A, 480 VAC, 60 Hz contact (Resistive) 5 A, 120 VDC (Resistive) 22 A, 480 VAC, 60 Hz (General Use) D300* (1-A current applied) NC 25 A, 480 VAC, 60 Hz contact (Resistive) 5 A, 120 VDC (Resistive) 10 A, 480 VAC, 60 Hz (General Use) D300* (1-A current applied) Number of test operations 80,000 EN Standard/TÜV Certification: EN 60947-4-1 (Certification No. R50079155) Model G7Z Coil ratings 12, 24 VDC Contact ratings NO contact AC-1: 40 A, 440 V, 50/60 Hz AC-3: 16 A, 440 V, 50/60 Hz DC-1: 5 A, 110 V 100,000 100,000 *AC15: 0.5 A, 440 V, 50/60 Hz *DC13: 0.5 A, 110 V — 100,000 NC contact AC-1: 25 A, 440 V, 50/60 Hz DC-1: 5 A, 110 V *AC15: 0.5 A, 440 V, 50/60 Hz *DC13: 0.5 A, 110 V G73Z — — NO contact AC15: 0.5 A, 440 V, 50/60 Hz NC contact DC13: 0.5 A, 110 V Note: Auxiliary contact ratings Note: Auxiliary contact ratings Model G73Z NO contact NC contact Contact ratings D300 (1-A current applied) CSA Certification by 332 Power Relays G7Z Connections ■ Terminal Arrangement/Internal Connections Relay with Auxiliary Contact Block Note: non-polarized coil. G7Z-4A-20Z G7Z-4A-11Z G7Z-4A-02Z 62 5 7 A1 1 3 5 7 A1 1 3 5 7 A2 2 4 6 8 A2 2 4 6 8 A2 2 4 6 8 54 63 G7Z-3A1B-20Z 53 54 63 G7Z-3A1B-11Z 64 A1 1 3 5 21 A2 2 4 6 22 G7Z-2A2B-20Z 53 54 63 62 52 61 53 3 53 54 61 51 64 A1 1 53 54 61 G7Z-3A1B-02Z 62 52 61 62 3 5 21 A1 1 3 5 21 A2 2 4 6 22 A2 2 4 6 22 G7Z-2A2B-11Z 64 51 A1 1 53 54 61 G7Z-2A2B-02Z 62 51 52 61 62 A1 1 3 11 21 A1 1 3 11 21 A1 1 3 11 21 A2 2 4 12 22 A2 2 4 12 22 A2 2 4 12 22 Auxiliary Contact Block G73Z-20Z 53 54 63 G73Z-11Z 64 53 54 61 G73Z-02Z 62 51 52 61 62 Power Relays G7Z 333 Dimensions Note: All units are in millimeters unless otherwise indicated. Relay (12 VDC, 24 VDC) with Auxiliary Contact Block 4 Poles Mounting Hole Dimensions Two, M4 45 39±0.2 15 Four, M3.5 47 Eight, M5 92 84 75.5 Two, M3.5 70.7 51.5 62 Note: The dimensions are typical values. Auxiliary Contact Block 13 47 32.2 24.2 30 M3.5 x 4 15.7 11 15 Note: The dimensions are typical values. DIN Track Mounting Height (when using the PFP-100N or PFP-50N mounting rail) 15 96.3 88.3 75.0 64.3 Note: The dimensions are typical values. 334 Power Relays G7Z 60 Precautions Be sure to read the common precautions provided in Best Control Devices Catalog Version 17 before using the Relay. !WARNING Take measures to prevent contact with charged parts when using the Relay for high voltages. • Mount the Relay sideways when it is mounted on a rail. • Use End Plates (PFP-M) on both sides of the Relay to make sure that it is properly secured. Up !CAUTION Do not touch the terminal section (charged parts) when power is being supplied. Always use the Relay with terminal covers mounted. Contact with charged parts may result in electric shock. Do not touch the Relay when power is being supplied or right after the power has been turned OFF. The hot surface may cause burn injury. DIN Track (35 mm) • Provide at least 5 mm of space between the sides and top of the Relay and nearby grounded metal surfaces. 5 mm min. ■ Precautions for Correct Use Grounded metal surface Installation • Mount the G7Z with the coil terminal at the top. Up 5 mm min. Coil terminal 5 mm min. • Provide at least 30 mm of space between Relays when two or more Relays are mounted in a row. 30 mm min. • Do not use the Relay with the terminal screw surfaces facing down. • The auxiliary contact block (G73Z) can be mounted on the Relay. Mounting and Removal Mounting Terminal screw surface • To mount the Relay, secure M4 screws in two locations. Use a screw-tightening torque of 1.2 to 1.3 N•m. (1) Hook Insert the tab on the auxiliary contact block into the groove on the Relay and press down until the hook on the auxiliary contact block catches in the mounting hole on the Relay. Tab (2) 39 mm Removing (1) Slide the auxiliary contact block, remove the auxiliary contact block tab from the groove on the Relay, and remove the auxiliary contact block hook from the Relay. Tab (2) Hook Be careful not to apply excessive force on the hook. Washer (external dia.: 7 max.) • The Relay can be mounted directly on a mounting rail (PTP) or a DIN Track (EN 50022-35 x 7.5, 15). The Relay cannot be mounted, however, to some reinforced rails (e.g., those produced by Kameda Denki or Toyogiken). Power Relays G7Z 335 Connecting Operating Coil • Use round or open-end (Y-type) crimp terminals and connect the terminals with the appropriate tightening torque. Refer to the terminal section space in the following figure for the crimp terminal dimensions. (Internal Connections of Coils) DC Coil Relay Contacts (Unit: mm) A2 A1 14.5 12.5 11 6 6 • If a transistor drives the G7Z, check the leakage current and connect a bleeder resistor if necessary. • The must operate voltage is the minimum value for the Relay armature to operate and the contacts to turn ON. Therefore, fundamentally apply the rated voltage to the coils, taking into consideration the increases in coil resistance caused by voltage fluctuation and coil temperature rise. M5 Mirror Contact Mechanism Relay Coil By combining a Relay with an auxiliary contact block, all NC contacts of the auxiliary contact block will satisfy an impulse withstand voltage of more than 2.5 kV or maintain a gap of more than 0.5 mm when the coil is de-energized even if at least one NO contact (main contact) of the Relay is welded (according to EN 60947-4-1). 6.8 4.3 M3.5 Description of Mirror Contact Mechanism Auxiliary Contact Block Impulse withstand voltage: 2.5 kV min. or contact separation (a + b): 0.5 mm min. 9.5 a 6.8 b Auxiliary contact block 5.5 5.5 Relay NC M3.5 • One crimp terminal can be used for the Relay contact section (M5 screw). Two crimp terminals can be connected for the coil terminal and auxiliary contact block. NO Recommended Crimp Terminals and Wire Contact welding Location Contact section Crimp terminals Appropriate wire size 5.5-5 2.63 to 6.64 mm2 (AWG12, 10) 8-5 6.64 to 10.52 mm2 (AWG8) Coil section 1.25-3.5 0.5 to 1.65 mm2 (AWG20 to 16) • Use the following tightening torque when tightening screws. Loose screws may result in fire caused by abnormal heat generated when the power is being supplied. M5 screws: 2.0 to 2.2 N•m M3.5 screws: 0.8 to 0.9 N•m • Allow suitable slack on leads when wiring, and do not subject the terminals to excessive force. Microloads The G7Z is used for switching power loads, such as current carry for device power supplies and heater loads. Use an auxiliary contact block (G73Z) if microloads are required for signal applications and operation status feedback. 336 Power Relays G7Z NC NO NO NO Omron Electronic Components, LLC Terms and Conditions of Sales I. GENERAL 1. Definitions: The words used herein are defined as follows. (a) Terms: These terms and conditions (b) Seller: Omron Electronic Components LLC and its subsidiaries (c) Buyer: The buyer of Products, including any end user in section III through VI (d) Products: Products and/or services of Seller (e) Including: Including without limitation 2. Offer; Acceptance: These Terms are deemed part of all quotations, acknowledgments, invoices, purchase orders and other documents, whether electronic or in writing, relating to the sale of Products by Seller. Seller hereby objects to any Terms proposed in Buyer's purchase order or other documents which are inconsistent with, or in addition to, these Terms. 3. Distributor: Any distributor shall inform its customer of the contents after and including section III of these Terms. II. SALES 1. Prices; Payment: All prices stated are current, subject to change without notice by Seller. Buyer agrees to pay the price in effect at the time the purchase order is accepted by Seller. 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This is not intended to be an exhaustive list of all possible use of any Product, nor to imply that any use listed may be suitable for any Product: (a) Outdoor use, use involving potential chemical contamination or electrical interference. (b) Use in consumer Products or any use in significant quantities. (c) Energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. (d) Systems, machines, and equipment that could present a risk to life or property. 3. Prohibited Use: NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 4. 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Change In Specifications: Product specifications and descriptions may be changed at any time based on improvements or other reasons. It is Seller’s practice to change part numbers when published ratings or features are changed, or when significant engineering changes are made. However, some specifications of the Product may be changed without any notice. 5. Errors And Omissions: The information on Seller’s website or in other documentation has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 6. Export Controls: Buyer shall comply with all applicable laws, regulations and licenses regarding (a) export of the Products or information provided by Seller; (b) sale of Products to forbidden or other proscribed persons or organizations; (c) disclosure to noncitizens of regulated technology or information. VI. MISCELLANEOUS 1. 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Seller shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in Buyer's application or use of the Product. At Buyer's request, Seller will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer's application, product or system. Buyer shall take application responsibility in all cases but the following is a nonexhaustive list of applications for which particular attention must be given: (i) Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document. (ii) Energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. (iii) Use in consumer products or any use in significant quantities. (iv) Systems, machines and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to this product. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 2. Programmable Products. Seller shall not be responsible for the user's programming of a programmable product, or any consequence thereof. 3. Performance Data. Performance data given in this publication is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Seller's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to Seller's Warranty and Limitations of Liability. 4. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Seller representative at any time to confirm actual specifications of purchased Product. 5. Errors and Omissions. The information in this publication has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors, or omissions. 6. RoHS Compliance. Where indicated, our products currently comply, to the best of our knowledge as of the date of this publication, with the requirements of the European Union's Directive on the Restriction of certain Hazardous Substances ("RoHS"), although the requirements of RoHS do not take effect until July 2006. These requirements may be subject to change. Please consult our website for current information. Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website at http://www.components.omron.com – under the “About Us” tab, in the Legal Matters section. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. OMRON ON-LINE OMRON ELECTRONIC COMPONENTS LLC 55 E. Commerce Drive, Suite B Schaumburg, IL 60173 Global - http://www.omron.com USA - http://www.components.omron.com 847-882-2288 Cat. No. X301-E-1 Power Relays 06/09 G7Z Specifications subject to change without notice Printed in USA