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Limit Switches for Ordinary & Hazardous Locations

Limit Switches for Ordinary & Hazardous Locations
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Limit Switches for Ordinary & Hazardous Locations

Product catalog summary
Overview: This document is a technical brochure from Max-Air Technology, Inc., detailing their range of limit switches designed for both ordinary and hazardous locations. These switches are used in rotary actuators and valve automation solutions, providing reliable feedback for actuated assemblies.
Specifications: The limit switches are available in various series, each with specific features:
  • 48 Series: Designed for hazardous locations with NEMA 4/4X/7/9, IP67 ratings. Available in aluminum and stainless steel, these switches offer mechanical or non-contact options.
  • 45 Series: Suitable for ordinary locations, also available in aluminum and stainless steel, with similar switch options as the 48 Series.
  • 41 Series: Cost-effective option with technopolymer housing, suitable for general corrosive environments.
Switch Types: The brochure details three main types of switches:
  • Mechanical Switches (MS): Activated by a spring return lever, available with silver or gold plating.
  • Magnetic Proximity Switches (PS): Activated by magnetic fields, hermetically sealed to prevent corrosion and sparking.
  • Inductive Proximity Switches (IS): Non-contact switches that detect metal objects without physical contact.
Features & Benefits: The limit switches offer several features:
  • Compact design with quick set cams.
  • High visibility open/close beacons.
  • Options for single and dual-coil solenoid valves.
  • Standard and hazardous duty options with various mounting brackets.
Warranty: Max-Air Technology provides a warranty against defects in materials and workmanship for 12 months from installation or 18 months from shipment, whichever comes first. The warranty excludes chemical or stress corrosion and unauthorized modifications.
Applications: These limit switches are suitable for environments requiring reliable position monitoring, including those with corrosive conditions or where explosion-proof equipment is necessary.
Additional Specifications: The document also provides technical specifications for various series of limit switches and inductive proximity switches used in industrial automation:
  • IFM IS0003 2-Wire NO Switches: Rated for 20-140VAC/10-140VDC, ambient temperature range of -13°F to +176°F, Code G.
  • P&F NBB2-V3-E2 3-Wire PNP NO Switches: Rated for 10-30VDC, ambient temperature range of -13°F to +158°F, Code K.
  • P&F NBB2-V3-E3 3-Wire PNP NC Switches: Rated for 10-30VDC, ambient temperature range of -13°F to +158°F, Code N.
  • P&F NCB2-V3-N0 2-Wire NC Switches: Rated for 8.2VDC, Eexia, ambient temperature range of -13°F to +212°F.
Materials of Construction: The document lists materials used in the construction of the switches, including die-cast aluminum, stainless steel, polycarbonate, ABS, and NBR for various components like housing, shafts, and O-rings.
Certifications: The switches are certified under various standards including CE, ATEX, SIL-2, and CSA, ensuring compliance with safety and performance requirements.
Wiring Diagrams: Detailed wiring diagrams are provided for the 41, 45, and 48 series limit switch boxes, highlighting the importance of correct wiring to maintain NEMA 4, 4x / IP67 protection ratings.
Applications: These switches are suitable for intrinsically safe applications due to their non-sparking nature and low voltage DC operation.
Contact Information: Max-Air Technology Inc. provides contact details for further inquiries and support, with locations in the USA, China, and Italy.
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Catalog excerpts

Limit Switches for Ordinary & Hazardous Locations-1

Limit Switches for Ordinary & Hazardous Locations Limit Switches Technical Brochure Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions Max-Air Technology, Inc. • 114 Resource Drive • Wentzville, MO 63385 • United States of America Tel +1.636.272.4934 • Toll Free 888.842.9998 • Fax 636.272.4937 • www.maxairtech.com • info@max

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Limit Switches for Ordinary & Hazardous Locations-2

Limit Switches Standard & hazardous duty limit switch boxes available with mechanical, proximity, or inductive switches. Max-Air limit switch boxes offer convenient and reliable switch feedback for actuated assemblies, for standard or hazardous duty environments. The NAMUR standard mounting design is compatible with all Max-Air pneumatic actuators. 48 Series Part Number Builder A M = Aluminum, black 7 = Stainless Steel North American Approvals MS = Mechanical PS = Magnetic IS = Inductive Proximity European Approvals BE = Mechanical BM = Magnetive Proximity BS = Inductive Proximity 0 = None 3...

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Limit Switches for Ordinary & Hazardous Locations-3

Limit Switch Technical Brochure Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions 45 Series Part Number Builder A D - SWITCH QUANTITY F - MATERIAL & COLOR M = Aluminum, black 7 = Stainless Steel North American Approvals MS = Mechanical PS = Magnetic IS = Inductive Proximity 0 = STD, Open/Closed, Yellow/Red 2 = Lport, 3way 3 = Tport, 3way 4 = Arrow, 3way 5 = Open/Close, Red/Green European Approvals BE = Mechanical BX = Mechanical (Gold Plated) BM = Magnetive Proximity BS = Inductive Proximity G - SWITCHES & SENSORS CODE 0 S 0 A B D E F G H K L N C - CONDUIT ENTRIES 1 = 1/2”...

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Limit Switches for Ordinary & Hazardous Locations-4

Limit Switches Standard & hazardous duty limit switch boxes available with mechanical, proximity, or inductive switches. Email: [email protected] Back to Table of Contents

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Limit Switches for Ordinary & Hazardous Locations-5

Limit Switch Technical Brochure Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions Table of Contents Pg - Description 02 - Part Number Builder 05 - Table of Contents 06 - Features & Benefits 08 - Switch Types 10 - 48 Series Exploded Views, Materials, & Dimensions 12 - 45 Series Exploded Views, Materials, & Dimensions 14 - 41 Series Exploded Views, Materials, & Dimensions 16 - Wiring Diagrams STANDARD WARRANTY Max-Air Technology Inc. | The Best Way to Automate Your Process Max-Air Technology provides the following warranty regarding products manufactured by it. THE WARRANTY...

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Limit Switches for Ordinary & Hazardous Locations-6

Features & Benefits Standard & hazardous duty limit switch boxes available with mechanical, proximity, or inductive switches. Standard/Hazardous Switch Feedback Max-Air limit switch boxes offer convenient and reliable switch feedback for actuated assemblies, for standard or hazardous duty environments. The NAMUR standard mounting design is compatible with all Max-Air pneumatic actuators. Standard Features: • • • • • • • • Compact Design & Quick Set Cams 3D Models Available for All Designs and Sizes Easy Wiring Through PCB Terminal, 10pt. Single and Dual-Coil Solenoid Valve Options High Visibility...

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Limit Switches for Ordinary & Hazardous Locations-7

Limit Switch Technical Brochure Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions High Visibility Beacon & Cover Switches & Terminals Integrated on Circut Board for High Integrity Captive Cover Bolts 48 Series The Max-Air 48 Series Explosion Proof aluminum and stainless steel limit switch boxes are available for the highest level of safety in hazardous environments. Extremely reliable, robust, and time tested the 48 Series is an excellent solution for your position monitoring needs. Switches available with mechanical, proximity and inductive types, and fully certified to...

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Limit Switches for Ordinary & Hazardous Locations-8

Switch Types Mechanical, Magnetic Proximity, & Inductive Proximity Mechanical switches are activated by pressing a spring return lever, and have physical contacts plated with a noble metal such as silver or gold. When energized contact is made, a small arc or spark can be produced within the housing of the switch that is not completely sealed off from the atmosphere. Mechanical switches are passive devices that do not require external power to operate. 41 Series / 45 Series Code 0 Silver Plated Switches SPDT Gold Plated Switches SPDT 48 Series Silver Plated Switches SPDT Gold Plated Switches...

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Limit Switches for Ordinary & Hazardous Locations-9

Limit Switch Technical Brochure Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions Inductive proximity switches are activated by the presence of a magnetic or ferritic target which disturbs the sensor’s own magnetic field. Inductive switches are “active” devices which require external power and are available in a variety of configurations. Inductive type switches are inherently “nonsparking” and usually operate on low voltage DC power, making them well suited for intrinsically safe applications. 41 Series / 45 Series / 48 Series Code A

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Limit Switches for Ordinary & Hazardous Locations-10

48 Series Technical Data Exploded View, Materials of Construction, & Dimensional Data 48 Series Exploded View & Bill of Materials • Certifications CE ATEX II 3 D ATEX II 2 G Ex d IIC T6 Gb ATEX II 2 D Ex t IIIC T* SIL-2 Rating Class I, Division 1, Groups C and D; Class II, Division 1, Groups E, F and G; Class III; Temp Code T4A Class I, Division 2, Groups A, B, C and D; Class II, Division 1, Groups E, F and G; Class III; Temperature Code T4A Ex d IIB T5 Gb; Ex tb IIIC T108°C Db Ex nA IIC T5 Gc; Ex tb IIIC T108°C Db Class I Zone 1, AExd IIB T5 Gb; Class II, Zone 21 AEx tb IIIC T108°C Db Class...

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Limit Switches for Ordinary & Hazardous Locations-11

Max-Air Technology Inc. | Rotary Actuators & Valve Automation Solutions 2 x Conduit Entries: 1/2" NPT (Optional M20x1.5) 2 x Additional Conduit Entries Optional Limit Switch Technical Brochure 2 X Conduit Entries: 1/2" NPT (Optional M20 X 1.5) Email: [email protected] Max-Air of Contents 11 Back to TableTechnology, Inc. 751 Hoff Road

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Limit Switches for Ordinary & Hazardous Locations-12

45 Series Technical Data Exploded View, Materials of Construction, & Dimensional Data 45 Series Exploded View & Bill of Materials 11 CE ATEX II 3 D ATEX II 2 G D EEx ia IIC T6 (Gold-plated contacts or EExia rated switches only) SIL-2 Rating CSA C22.2 No 14-13 ANSI/UL 508 (17th Ed) CSA C22.2 No 94.1-07 / ANSI/UL 50 (12th Ed) CSA C22.2 No 94.2-07 / ANSI/UL 50E Die Cast Aluminium AISI 316 Stainless Steel AISI 304 Stainless Steel AISI 316 Stainless Steel Indicator Cover Screws Stainless Steel Indicator Cover O-Ring NBR Low Temp Silicone (Optional) AISI 304 Stainless Steel AISI 316 Stainless Steel...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.