1756-pa75k. 1. 1756-pa75k

 
11756-pa75k Módulos de E/S digitales ControlLogix Números de catálogo 1756-IA8D , 1756-IA16, 1756-IA16I, 1756-IA32, 1756-IB 16, 1756-IB16D, 1756-IB16I, 1756-IB16IF,Conformal coated 1756 power supply 85-265V AC Power Supply (5V @ 13 Amp) Input Voltage:120V AC;240V AC Power 75

1756-TD005. Products sold before or. IMPORTANT: The third terminal from the top is not used on the 1756-PA75 or 1756-PB75 power supply. Ac/dc redundant power supply (24 pages) Power Supply Allen-Bradley 1734-EP24DC Installation Instructions Manual. This is an analog module that is used with Resistance-Temperature Detectors (RTD) sensors. 1756-TD005 Find more technical documentation for this product in the Technical Documentation Center. Catalog #: 1756-PA75K. 1756-IN619. The Allen-Bradley 1756-L75 is a ControlLogix controller. 8 A. Warranty Terms and Conditions. 3V, 5V, and 24V DC power directly to the chassis backplane. Safety; CE; This product was certified with the above certifications as of 2023-06-22. show selections show by category show all versions. The redundant power supply system provides additional uptime protection for chassis that are used in critical applications. 1756-IN619. 1756-PA75K, 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75, 1756-PC75 Power supply, redundant 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2KOutputs. 3 - on USB ports. 1756-TD005 Find more technical documentation for this product in the Technical Documentation Center. Trending at $197. 3V, 5V, and 24V DC power directly to. Click now or Call 1-919-205-4392 for the best prices on all Allen Bradley PLC products. ControlLogix 5580 Controller. 51 x 4. Technical Data. The Allen-Bradley 1756-A4 is a ControlLogix Chassis. Safety; CE; This product was certified with the above certifications as of 2023-11-09. 95% noncondensing: Shock: Operating: 30 G: Operating temperature: 0 to 60 °C: Voltage variation: IEC 61000-4-11: 30% dips for 1 period at 0° and 180° on AC supply ports, 60% dips for 5 and 50 periods on AC supply ports, ±10% fluctuations for 15 min on AC supply ports, >95% interruptions for 250 periods on. About this Publication Use this document to install the ControlLogix DH-485 communications module. 71 in. . Installation Instructions. com - Model: 1756-L73XT. Allen-Bradley ControlLogix 1756-PA75R/A Installation Instructions Manual (24 pages) AC/DC Redundant Power Supply. Revisions: Ser A Ser B. 500 Hz: Relative humidity: 5. 2 mm (3/64 in. Allen Bradley 1756-PA75; Allen Bradley 1756-PA75 Datasheet. Brand: Allen-Bradley. This controller is a safety partner controller that is paired with 1756-L71S, 1756-L72S, 1756-L73S primary controllers, forming 1oo2 safety architecture, rated up to and including Safety Integrity Level 3 (SIL 3), Performance Level e (PL e) functionality. The supported range of input frequencies is. 8 A at 24VDC. 1756-PB75K. Technical Data. 5 x 4. TYPE. Conformal coated 1756 power supply 85 265V AC Power Supply (5V @ 13 Amp) Input Voltage:120V AC,240V AC Power 75. 78. 2V, 3. Products sold before or after this date might carry different certifications. 2V, 3. Preferred Availability. Spec Sheet. Model: 1756-PA75 Categories: Bulletin 1756 ControlLogix? I/O modules Brand: Allen-Bradley. 1756-esmnsek 1756-ewebk 1756-ib16k 1756-ob16iefk 1756-l75k 1756-spesmnsek 1756-cnbk 1756-ib32k 1756-ob32k 1756-l7spk 1756-pa72k 1756-cn2rk 1756 - iv16k 1756-of4k 1756-l8spk 1756-pa75k 1756-cnbrk 1756-iv32k 1756-of8hk 1756-l81ek 1756-pa75rk 1756-dhriok 1756-ib16isoek 1756-of8ik 1756-l82ek 1756-par2k 1756-dnbk 1756-if16hk 1756. Technical Data. About 1756-L71. Technical Data. Preferred Availability ControlLogix AC Power Supply. Sub Brand: ControlLogix. Chassis Power Supplies (One 1756 chassis supply is required for each 1756 chassis) ControlLogix, 85-265 VAC Redundant Power Supply. You can add I/O, networks, drives, on-machine. 2V、DC3. ALLEN BRADLEY 1756-PA75 ControlLogix SER B 120-240V-AC AC POWER SUPPLY D400205 . Are you in EU? Call: +44 1782 576800. ControlLogix. Find more technical documentation for this product in the Technical Documentation Center . Overview. A DC power supply is used to convert higher AC line voltage to lower voltage DC power. Safety; CE; This product was certified with the. 1756 ControlLogix Power Supplies Specifications ControlLogix® power supplies are used with the 1756 chassis to provide 1. Estimated dates are contingent upon manufacturer stock. Certifications. Allen-Bradley® catalog item 1756-PA72 from Rockwell Automation® is a ControlLogix AC power supply. 1756-PA75. 罗克韦尔(AB)PLC讲解,昆仑通泰 (MCGS)触摸屏控制ABplc。. 700 mA @ 5. Rockwell Automation Publication 1734-UM001E-EN-P - July 2013 Preface Purpose of This Manual This manual describes how to install, configure, and troubleshoot your POINT I/O modules. Certifications. Scribd is the world's largest social reading and publishing site. 3V、DC5V、および DC24V電力を直接供給します。 標準電源装置、ControlLogix-XT™電源装置、およびスリム(細幅)電源装置を利用できます。Description: The Allen-Bradley 1756-PA72 is a ControlLogix Standard Power Supply. Catalog Numbers 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17K, 1756-A7XT, 1756-A10XT Product Overview The ControlLogix® system is a modular system that requires a 1756 ControlLogix chassis. 1756-PB50; 1756-PA75/B; 1756-PA72/C; 1756-PA75K;. Flag. PUBLICATION NUMBER. CE. Skip to the end. 2V, 3. 00/14 Valid 1756-PA72 ControlLogix AC Power Supply (72W) C NA 968/FSP 1004. Allen-Bradley 1756-PA75K Conformal coated 1756 power supply 85-265V AC Power Supply (5V @ 13 Amp) Input Voltage:120V AC;240V AC Power 75. TYPE. Lifecycle status: ACTIVE. Find more technical documentation for this product in the Technical Documentation Center . Original Factory Sealed Allen-Bradley 1756-PA75 /B ControlLogix AC Power Supply. 00 W 13. ControlLogix DC Power Supply. 1756-PA75 ; Customers also viewed these products. Supporting protocol for PROFIBUS. 5/5 based on 2 ratings. 120/220V AC. 1756-UM001. Please sign in before buying. 1783-IN003. QTY. 88. Learn about the specifications, features, and dimensions of the 1756-PA75K power supply, a standard AC power supply for the 1756 ControlLogix system. Products sold before or. 1756-IN619. Hold up time (20 cycles): @ 220V AC, 60 Hz. Technical Data. This module is installed in a dedicated power slot on the far left side of any ControlLogix case. Buy 1756-PA75 / 1756-PA75 Allen Bradley Power Supply | Controllogix from Distributor Santa Clara Systems. Safety. CE; This product was certified with the above certifications as of 2023-11-08. Download. Documents Product Specifications Reviews Videos. View. 80 A on 24V1756-PA75K. Redundant operation: Yes. Find more technical documentation for this product in the Technical Documentation Center . 47 MB. 16A Current draw @ 24V DC 120. This product was certified with the above certifications as of 2023-11-02. ALLEN BRADLEY 96422272-A01. 39 /ea. Catalog #: 1756-PA75K. . 884. 1756-TD005 Find more technical documentation for this product in the Technical Documentation Center. 0. Check part details, parametric & specs updated 28 AUG 2023 and download pdf datasheet from datasheets. 98 MB. ALLEN BRADLEY. Preferred Availability ControlLogix AC Power Supply. ControlLogix SynchLink Comms Module. com, a global. MFG PART #:1756-PA75K. Santa Clara Systems carries 53,370 items from Allen. Studio 5000 Logix Designer. Technical Data. 1756-PA75K Allen-Bradley. The Allen-Bradley 1756-L7SP is a GuardLogix controller. Isolation voltage. ATEX. It is designed to interface between a PLC controller and field devices in industrial automation applications. Preferred Availability ControlLogix AC Power Supply. Find more technical documentation for this product in the Technical Documentation Center . About 1756-PB75. 80 A on 24V. Catalog #: 1756-PA75K. ALLEN BRADLEY 1756-PA75B. Publication 1756-IN576B-EN-P - September 2003 Installation Instructions. 9393. This power supply is a DC powered module, mainly used to deliver backplane power and enable module operation. Our products are 100% New & Original, in stock, low price promotion. View Pricing. This output module is ideal for use in. Products sold before or. 95% noncondensing: Shock: Operating: 30 G: Operating temperature: 0 to 60 °C: Voltage variation: IEC 61000-4-11: 30% dips for 1 period at 0° and 180° on AC supply ports, 60% dips for 5 and 50 periods on AC supply ports, ±10% fluctuations for 15 min on AC supply ports, >95% interruptions for 250 periods on AC supply ports Publicación de Rockwell Automation 1756-IN619A-ES-P - Abril 2016 3 Fuente de alimentación eléctrica ControlLogix ATENCIÓN: Lea este documento y los documentos que se indican en la sección Recursos adicionales sobre instalación, configuración y operación de este equipo antes de instalar, configurar, operar o dar mantenimiento a este. 1756-TD005. 00 Schneider Electric Magelis 5. Allen-Bradley 1756-PA75K Controllogix AC Power Supply. Browse the database of questions and answers on a variety of products and technologies. It is designed to interface between a PLC controller and field devices in industrial automation applications. 00. The input voltage range for the 1756-PA75K module is from 85 to 265 Volts AC. Standard, ControlLogix-XT™, and slim (reduced width) power supplies are available. 1756-PA75K , 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75, 1756-PC75 Power supply, redundant 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756. 80 A on 24V Lifecycle status. 3 W, Current mode with 250 Ω loads = 6. 1756-PA75 ; PLC Module ; Brand New(Not Used). The 1756-L6x controllers have a built-in serial port. Buy It Now. Spec Sheet. PUBLICATION NUMBER. Certifications. ALLEN BRADLEY. Preferred Availability. Wiring category. Our Bulletin 1756 ControlLogix® chassis-based modules provide a full range of digital, diagnostic digital, analog, motion control, specialty I/O. 1. com. Find out the components, tools, parts, chassis compatibility, specifications and additional. Downloads. 00 W 13. We Offer Fast Same-Day Shipping Today! Click to Check if In-Stock. TYPE. TYPE. 9393. ALLEN BRADLEY AR1756PB75/B. $689. 2V DC: 1. Technical Data. Find more technical documentation for this product in the Technical Documentation Center . 1756-TD005 Find more technical documentation for this product in the Technical Documentation Center. Find Product Drawings. Find more technical documentation for this product in the Technical Documentation Center . TYPE. The PLC-5 Migration Program is available to help address design, specification, conversion and installation of ControlLogix control systems to replace PLC-5 systems. Descripción Código Risoul Catálogo Módulo de comunicación Ethernet, 1 puerto PDI58385 1734-AENT Módulo de comunicación Ethernet, 2 puertos PDI97667 1734-AENTR4 Rockwell Automation Publication 1756-TD005I-EN-E - October 2018 1756 ControlLogix Power Supplies Specifications Standard DC Power Supplies Mounting Dimensions Certifications - Standard AC Power Supplies Certification(1) 1756-PA50, 1756-PA50K 1756-PA72/C, 1756-PA72K/C 1756-PA75/B, 1756-PA75K/B UL – UL Listed Industrial Control. Description: The Allen-Bradley 1756-L63 is a 5560 ControlLogix Programmable Automation Controller (PAC). About 1756-L72S. 3V, 5V, and 24V DC power directly to the chassis backplane. Order international: +1 609. 1756-IN619. The 1756-PA75 ControlLogix Power Supply is a powerhouse that delivers reliable performance and efficiency. 8 A at 24VDC. Allen-Bradley and ControlLogix are trademarks of Rockwell Automation, Inc. The 1756-OB32 is an Allen-Bradley High-Density 24VDC discrete output module. View. Preferred Availability ControlLogix AC Power Supply. 3 compliant shielded or unshielded twisted pair. 16. 500 Hz: Relative humidity: 5. No. Current capacity @ 3. 1V DC 1. to avoid the risks of unauthorized and counterfeit products. Documentation. New And Original 6se7090-0xx84-4ha0 With One Year Warranty In Stock , Find Complete Details about New And Original 6se7090-0xx84-4ha0 With One Year Warranty In Stock,6se7090-0xx84-4ha0 from PLC Supplier or Manufacturer-Wuhan Sean Automation Equipment Co. 0 ratings 0% found this document useful (0 votes) 164 views. 5 pounds (1. Add to Repair Quote. Preferred Availability. This power supply is a DC powered module, mainly used to deliver backplane power and enable module operation. CE; This product was certified with the above certifications as of 2023-10-16. 884. Safety; CE; This product was certified with the above certifications as of 2023-10-26. 0 Shopping Cart. It is a digital DC type of input module. Page. Technical Data. Flag. Add to BoM. Products sold before or after this date might carry different certifications. 1756-pa75rk. 1756-PA75K ControlLogix AC Power Supply, Conformal Coated 1756-PA75R 1756-PA75R ControlLogix AC Redundant Power Supply1756-TD005: Find more technical documentation for this product in the Technical Documentation Center. Please review the product label to check for the certifications your specific product carries. Quantity: More than 10 available. Vibration: 2 G @ 10. Installation Instructions. ATEX. This module accepts current and voltage signals such as ±10V, 0-10V, 0-5V and 0-20 mA. $413. 802. Description: The Allen-Bradley 1756-PA75R is a ControlLogix Redundant Power Supply. Sub Brand. China CCC. Technical Data. 5 W Power. View Pricing. pdf - Free download as PDF File (. Related. 80 A on 24V. This module is used to drive output devices connected to each channel of this module. Technical Data. Rockwell Automation's 1756-PA75K is controllogix power supplies in the power management other, specialized power ics and modules category. Lifecycle status: ACTIVE Find a Distributor Learn how to avoid the risks of unauthorized and counterfeit products. Safety; CE; This product was certified with the above certifications as of 2023-10-12. 1756-PB50; 1756. Our free 2-year warranty makes every Radwell purchase a dependable, reliable investment in your company's future. 10/100 Mbps. Order international: +1 609. 1. Catalog Numbers 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17K, 1756-A7XT, 1756-A10XT Product Overview The ControlLogix® system is a modular system that requires a 1756 ControlLogix chassis. Project. Catalog #: 1756-PA75K. 00 A on 5V 2. Conformal coated 1756 power supply 85 265V AC Power Supply (5V @ 13 Amp) Input. 30V (continuous), Basic Insulation Type, Ethernet to Backplane, USB to. Windows Meta-File (WMF)Description: Power Supply | ControlLogix. 4 Rockwell Automation Publication 1756-TD005I-EN-E - October 2018 1756 ControlLogix Power Supplies Specifications Standard DC Power Supplies Mounting Dimensions Certifications - Standard AC Power Supplies Certification(1) 1756-PA50, 1756-PA50K 1756-PA72/C, 1756-PA72K/C 1756-PA75/B, 1756-PA75K/B UL – UL Listed Industrial Control. Price: US $416. ControlLogix Power Supply Optional Power Cable Connection The 1756-PA50, 1756-PA50K, 1756-PB50, 1756-PB50K, 1756-PA30XT, and 1756-PB30XT power supplies offer an optional cable retention mechanism. com, a global distributor of electronics components. Standard Power Supplies 1756-PA72, 1756-PA72K, 1756-PA75, 1756-PA75K, 1756-PB72, 1756-PB72K,1756-PB75, 1756-PB75K,1756-PC75, 1756-PH75 Standard Slim Power Supplies. 34. Allen-Bradley® catalog item 1756-PA75K from Rockwell Automation® is a conformal coated, ControlLogix power supply. 127( 7klv fhuwlilfdwh hylghqfhv frpsoldqfh zlwk rqh ru pruh ri wkh $%6 5xohv dqg wkh (8 5hjxodwlrqv ,w lv lvvxhg vroho iru wkh xvh ri $%6 lwv frpplwwhhv lwv folhqwv. Flag. 71 in. 00 W 13. Discontinued Date: June 24, 2010 Replacement Category: No planned RA replacement. 1756-TD005. CE; This product was certified with the above certifications as of 2023-11-08. No. Certifications. Certifications. Output devices may include pilot lamps, relays, contactors, panel annunciators, solenoids, buzzer, siren, horn and other actuating devices. Flag. 1756-PA75K Power Supplies from ALLEN BRADLEY In Stock, Order Now! 2-Year Warranty, Radwell Repairs - POWER SUPPLY, CONTROLLOGIX, 25 W, 20 AMP, 85-265 VAC, CHASSIS MOUNT, CONFORMAL COATING. Table of Contents. . 1756 ControlLogix Power Supplies Specifications ControlLogix® power supplies are used with the 1756 chassis to provide 1. The Allen-Bradley 1756-IR6I is a temperature-measuring analog module. Brand: Allen-Bradley | Category: Power Supply | Size: 0. . 5 mm2 (14 AWG) solid or stranded copper wire rated at 90 °C (194 °F), or greater, 1. Technical Data. We Offer Fast Same-Day Shipping Today! Click to Check if In-Stock. - Model: 1756-SPESMNSEXT L7SPXT Energy Storage Module-No Energy --> sales. $413. 2V, 3. Safety; CE; This product was certified with the above certifications as of 2023-09-06. TYPE. The 1756-PA75 power supply can be used with ControlLogix chassis Series B only. . New Factory Sealed AB 1756-PA75 SER B ControlLogix AC Power Supply 1756-PA75. This product was certified with the above certifications as of 2023-10-23. PUBLICATION NUMBER. $599. . Flag. 00 W 13. 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PC75, 1756-PH75, 1756-PH75K, 1756-PAXT, 1756-PBXT ControlLogix® power supplies are used with the 1756 chassis to provide 1. Reinforced insulation is another outstanding feature of the 1756-PA75, and it was tested for 60 seconds at 3,500 Volts DC. Current capacity @ 5. Wiring category. Order toll free: 800. ) insulation max Wire category 1 - on power ports(6) Conductor screw torque 0. Please call or email us with your request. 06/16 ValidThe Bulletin 1756 ControlLogix® suite of chassis-based modules offer a wide range of options to meet your needs. 3V, 5V, and 24V DC power directly to. A DC power supply is used to convert higher AC line voltage to lower voltage DC power. It has 1 USB port and an embedded Ethernet port. Brand: Allen-Bradley. Santa Clara Systems carries 53,370 items from. See UL File E65584. It has an output power rating of 75 W @ 0…+60 °C (+32…+140 °F). 1756-PA75K , 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75, 1756-PC75 Power supply, redundant 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2KAbout 1756-IR6I. Current capacity @ 5. Products sold before or after this date might carry different certifications. 3 W, Current mode with 500 Ω loads = 7. . Page. Products sold before or after this date might carry different certifications. . Flag. 02. UPC #:885630569482. 00 A on 5V 2. PUBLICATION NUMBER. 1VDC and 2. Allen-Bradley 1756-PA75K Controllogix AC Power Supply Manufacturer: Allen Bradley / Rockwell | Catalog # 1756-PA75K | Codale Part # 3423067 $1,990. 96348671 £985. 1756-PA75 Allen Bradley (Rockwell Automation) LOGIX POWER SUPPLY 85-265VAC 5V at 13a. 44. 00/14 Valid 1756-PB72 ControlLogix DC Power Supply (72W) C NA 968/FSP 1004. No Interest if paid in full in 6 mo on $99+ with PayPal Credit*. Standard Power Supply is attached directly on the left end of the 1756 chassis, where it plugs directly into the backplane. 1756-PA75/B - ControlLogix Rack Mount Power Supply 85-265V AC / 5V &#64; 13A, for ControlLogix Chassis 1756-PA75R. 0 to 60 °C. Vibration: 2 G @ 10. The 1756-IR6I module provides two data formats such as integer mode and the floating-point mode. TYPE. Ask us about 1756-PA75/B Repairs. Attribute 1756-PA50, 1756-PA50K 1756-PA72/C, 1756-PA72K/C 1756-PA75/B, 1756-PA75K/B 4 Rockwell Automation Publication 1756-TD005H-EN-E - November 2017 1756 ControlLogix Power Supplies Specifications Technical Data. It also has an onboard 4-character alphanumeric display for easy monitoring of run-time and module information and controller diagnostics. FactoryTalk Linx Gateway. TYPE. About 1756-L81ES. Chassis Power Supplies (One 1756 chassis supply is required for each 1756 chassis) ControlLogix, 85-265 VAC Power Supply (13 Amp @ 5V) 2 Rockwell Automation Publication 1756-TD001P-EN-P - August 2019 1756 ControlLogix and GuardLogix Controllers 1756 ControlLogix Controllers The ControlLogix® controller provides a scalable controller solution that is capable of addressing many I/O points. The Allen-Bradley 1756-PA75 power supply module can also provide single failure-proof chassis power of up to 20 A of current per chassis using redundant configurations. 2V. This product was certified with the above certifications as of 2023-11-08. ) Isolation voltage. , Ltd. ControlLogix® 電源装置は1756 シャーシと共に使用し、シャーシのバックプレーンにDC1. 2V、DC3. ALLEN BRADLEY 96422273. The two remotely. Voltage variation. Preferred Availability ControlLogix AC Power Supply. 罗克韦尔(AB)PLC讲解,如何给AB的PLC、硬件固件升级?. 5 mm2 (14 AWG) solid or stranded copper wire rated at 90 °C (194 °F), or greater, 1. Flag. 95% noncondensing: Shock: Operating: 30 G: Operating temperature: 0 to 60 °C: Voltage variation: IEC 61000-4-29: 10 ms interruption on DC supply ports, 60% dips for 100 ms on DC supply ports, 100% dips for 50 ms on DC supply ports, ±20% fluctuations for 15 min on DC supply ports, 5 s interruptions on DC supply ports Technical Data. 5 W Power SKU: AB1756PA75K Brand: Rockwell Automation1756-PA75 ControlLogix AC Power Supply Module 120-220 Volts AC 85-265 Volts AC 100 Watts 47-63 Hertz 75 Watts at 60 Celsius Series B Chassis - Left Side 2. Manufacturer: Allen-Bradley. CE; This product was certified with the above certifications as of 2023-11-08. TestView. 1756-TD002. Add. PUBLICATION NUMBER. 5 mm2 (14 AWG) solid or stranded copper wire rated at 90 °C (194 °F), or greater, 1. Products sold before or. 16A 1. 00 A on 5V 2. PRICE. )1756 ControlLogix Power Supplies Specifications. 1756-PA75K, 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75, 1756-PC75 Power supply, redundant 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2KCatalog #: 1756-PA75K. Check part details, parametric & specs updated 14 OCT 2023 and download pdf datasheet from datasheets. Available on-line or for download, our tools help you access information while in the office. 2V, 3. Catalog #: 1756-PA75K. Flag. <2 ms to 95% of final value with resistive loads. Catalog #: 1756-PA75K. ALLEN BRADLEY 1756PA72C. 1756-PA75/B - ControlLogix Rack Mount Power Supply 85-265V AC / 5V @ 13A, for ControlLogix ChassisRockwell Automation's 1756-PA72 is a power supply.