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Explosion-Proof Starters

 
  • Non-combination and combination starters enclosed in Type 7/9 enclosures for safe and reliable starting in hazardous applications
Non-combination and combination starters enclosed in Type 7/9 enclosures for safe and reliable starting in hazardous applications

Non-combination and combination starters enclosed in Type 7/9 enclosures for safe and reliable starting in hazardous applications

 
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Explosion-Proof
  • Overview
  • Product Comparison
  • Specifications
  • Documentation
  • Tips/FAQ

Overview

Sprecher + Schuh's offers explosion proof starters for environments covered by NEMA, UL, NEC & CSA classifications.

Type 7 enclosures are designed to provide protection against an internal explosion when operated in a hazardous gas environment. Type 9 enclosures protect from internal explosion in a hazardous dust environment. Both types must also prevent enclosed heat generating mechanisms from causing external surfaces to reach temperatures capable of igniting explosive gas-air mixtures in the surrounding atmosphere. Sprecher + Schuh explosion proof starters meet all requirements of both classifications. Explosion proof enclosures are also equipped with a watertight Nitrile gasket for compliance with Type 4 specifications.

Factory Installed Features

A wide range of specially designed explosion proof cover control devices and switches are available. Explosion proof starters from Sprecher + Schuh are factory assembled in our custom panel shop, and can be specified from the catalog with a range of standard options and other modifications, including breather drains, ATEX certifications and any other special requirements you may need. See the E-Catalog for the most current offering.

Starters & Enclosed Products

KWIKstarters
 
Enclosed Contactors
 
Non-Combination Starters; IEC
 
Combination Starters; IEC
 
Explosion-Proof
 
RVAT, Multi-Speed & Pump
 
FMS & NEMA Labeled
 

Product Comparison

Standard

Sprecher + Schuh standard explosion proof starters are equipped with the state of the art CEP7 solid state overload relays.

Combination Starters

Explosion-proof combination starters can include either a UL489 approved Thermal Magnetic Circuit Breaker (MCCB), or non-fusible disconnect.

Specifications

  • NEMA:Type 4/4X, 7BCD, 9EFG
  • NEC: Class I, Div. 1 Groups B, C, D

Class II, Div. 1 Groups E, F, G

Class III

  • UL: Standard 1203 Hazardous (Classified) Locations
  • CSA: Standard 22.2 No. 25 & 30
  • Up to 500 HP @ 460V

Looking for more?

Find selection guidance, technical information, wiring diagrams, and dimension drawings in the E-Catalog.

E-Catalog
 

Documentation

 
Resource Resource Type Publication Number
Inside story on phase failure protection White Paper TECH-PHASEFAILURE
Troubleshooting nuisance tripping White Paper Tech-MCCB-Nuisance-Tripping
Primary Fuses; to use or not to use White Paper Tech-PrimaryFuses
Sprecher + Schuh Panel Shop Services Flyer F-PanelShop
Literature LibraryLiterature Library

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