mechan-i-lock models ml-msi-xxx, ml-ch-xxx, ml-sqd-xxx, … · all internal wiring and connections...
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HEADQUARTERS: 914 WEST PATAPSCO AVENUE • BALTIMORE, MARYLAND 21230 • PHONE (410) 354-3300 • FAX (410) 354-3313
MET Report: Class 102790 © 2019, MET Laboratories, Inc. Page 1 of 33
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Mechan-I-Lock Models ML-MSI-XXX, ML-CH-XXX, ML-SQD-XXX,
ML-GE-XXX, ML-BMP-XXX
Tested under
UL 67, Panel Boards, Thirteenth Edition, Rev. March 15, 2018
File: E114875
MET Report: 102790
Approved: May 1, 2019
Applicant:
Mechan-I-Lock, LLC 5914 Rosebay Forest Road
Midlothian, CA 23112 USA
Prepared By:
MET Laboratories, Inc. 914 West Patapsco Avenue
Baltimore, Maryland 21230-3432 (410) 949-1802
This report shall not be reproduced except in full, without the express written consent of MET Laboratories, Inc.
NRTL Listing MET-C Listing MET Listing MET Listing for Canada MET Recognition MET-C Recognition MET Classification MET-C Classification
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Table of Contents
CHANGE RECORD ................................................................................................................................................... 3
DESCRIPTION ........................................................................................................................................................... 4
GENERAL REQUIREMENTS .................................................................................................................................. 7
MARKINGS ................................................................................................................................................................. 9
MANUAL/SERVICE INSTRUCTIONS ................................................................................................................. 10
ALTERNATE LISTEE INFORMATION .............................................................................................................. 13
APPLICANT’S RESPONSIBILITIES .................................................................................................................... 14 PRODUCT MODIFICATIONS: ...................................................................................................................................... 14 MANUFACTURING AND PRODUCTION-LINE TESTS AND DOCUMENTATION PERFORMED BY MANUFACTURER. ......... 16
CONDITIONS OF ACCEPTABILITY ................................................................................................................... 17
CRITICAL COMPONENTS ................................................................................................................................... 18
FIGURES ................................................................................................................................................................... 20
ILLUSTRATIONS .................................................................................................................................................... 27
TESTING CONSIDERATIONS .............................................................................................................................. 32
CONCLUSION .......................................................................................................................................................... 33
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Change Record
Change Number Description Approval
Date Project Number
Amendment Engineer
Engineer Initials
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Description
Product(s) Covered: • Mechan-I-Lock, Models ML-MSI-XXX, ML-CH-XXX, ML-SQD-XXX, ML-GE-XXX, ML-BMP-
XXX • The Mechan-I-Lock is a mechanical device designed to provide an interlock between two breakers in
an electrical panel. The Mechan-I-lock will insure that both breakers cannot be turned on at the same time.
• The interlock is intended to be installed in the field.
Product Description: The Mechan-I-Lock is a mechanical device consisting of two plates: the first plate sits on the face of the panel cover and the second plate sliding on top of the first pate and serves as lock mechanism. Model Differences: The covered models are listed below.
Panel Manufacturer Panel Amps Lock Part Number Murray/Siemens/ITE 150-225 ML-MSI-200 Murray/Siemens/ITE 150-225 ML-MSI-210 Murray/Siemens/ITE 150-225 ML-MSI-220 Murray/Siemens/ITE 150-225 ML-MSI-230 Murray/Siemens/ITE 150-225 ML-MSI-240 Murray/Siemens/ITE 150-225 ML-MSI-250 Murray/Siemens/ITE <125 ML-MSI-100
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Murray/Siemens/ITE <125 ML-MSI-110 Murray/Siemens/ITE <125 ML-MSI-120 Cutler Hammer 150-225 ML-CH-200 Cutler Hammer 150-225 ML-CH-210 Cutler Hammer 150-225 ML-CH-220 Cutler Hammer 150-225 ML-CH-230 Cutler Hammer 150-225 ML-CH-240 Cutler Hammer 150-225 ML-CH-250 Cutler Hammer <125 ML-CH-100 Cutler Hammer <125 ML-CH-110 Square-D 150-225 ML-SQD-200 Square-D 150-225 ML-SQD-210 Square-D 150-225 ML-SQD-220 Square-D 150-225 ML-SQD-230 Square-D <125 ML-SQD-100 Square-D <125 ML-SQD-110 Square-D <125 ML-SQD-120 Square-D <125 ML-SQD-130 General Electric (GE) <225 ML-GE-200 General Electric (GE) 150-225 ML-GE-210 General Electric (GE) 150-225 ML-GE-220 General Electric (GE) 150-225 ML-GE-230 General Electric (GE) 150-225 ML-GE-240 General Electric (GE) 150-225 ML-GE-250 General Electric (GE) <125 ML-GE-100 General Electric (GE) <125 ML-GE-110 Westinghouse/Thomas&bettts/Challenger 150-225 ML-WTC-200 Westinghouse/Thomas&bettts/Challenger 150-225 ML-WTC-210 Westinghouse/Thomas&bettts/Challenger 150-225 ML-WTC-220 Crouse-Hinds 150-225 ML-CRH-200 Crouse-Hinds 150-225 ML-CRH-210 Crouse-Hinds 150-225 ML-CRH-220 Crouse-Hinds 150-225 ML-CRH-230 Crouse-Hinds <125 ML-CRH-100 Bryant 150-225 ML-BR-200 Bryant 150-225 ML-BR-210 Bryant 150-225 ML-BR-220 Branch Main Panels <125 ML-BMP-100 Branch Main Panels <125 ML-BMP-110 Branch Main Panels <125 ML-BMP-120 Branch Main Panels <125 ML-BMP-130
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Branch Main Panels <125 ML-BMP-140 Branch Main Panels <125 ML-BMP-150
Engineering Considerations (Not For Field Representative's Use): • The Mechan-I-Lock, Models ML-MSI-XXX, ML-CH-XXX, ML-SQD-XXX, ML-GE-XXX, ML-
BMP-XXX has been investigated in accordance with UL 67, Panel Boards, Thirteenth Edition, Rev. March 15, 2018.
• The Mechan-I-Lock, Models ML-MSI-XXX, ML-CH-XXX, ML-SQD-XXX, ML-GE-XXX, ML-BMP-XXX was evaluated and classified with respect to installation and mechanical operation only.
• The Mechan-I-Lock, Models ML-MSI-XXX, ML-CH-XXX, ML-SQD-XXX, ML-GE-XXX, ML-BMP-XXX was not inspected for:
• Corrosion • Mechanical resistance • Mounting and securement • Reliability • Environmental conditions • Risk of injury to persons • Permanence of marking
• Only the following clauses of UL 67, Panel boards, Thirteenth edition, March 15, 2018 were considered:
- Clause 6.6.10 - Clause 6.7.2 - Clause 27: Bonding resistance test - Clause 28: Test requirements for panelboards used as transfer Equipment - Clause 34.12.19
• This product must be installed in accordance with all codes applicable to the location of the installation
and in accordance with its instructions for use.
Note to Field Representative:
• The Mechan-I-Lock interlock is provided with an installation kit and an instruction manual. The installation kit and manual were not part of the inspection. The installation kit and instructions were reviewed and found to give guidance on the interlock installation.
• Only the marking label required by clause 5.6.10 was inspected and is provided as part of the installation kit.
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General Requirements
Scope of Requirements: The requirements contained within this section apply to all products contained within this Follow-Up Service Report File where applicable. Definitions: (as defined or used in the context of the standard) Term Definitions Listee: Applicant Measurements: All dimensions indicated in the body of this report are approximations unless otherwise indicated. Corrosion Protection: All corrosive metals shall be provided with a means to protect from corrosion. Acceptable methods include painting, plating and galvanizing. Dissimilar metals shall not be employed where reliable continuity is required. Soldered Connections: All soldered connections shall be made mechanically secure before soldering. Tack soldering is not acceptable. Acceptable forms of mechanical securement include: A) Lead is inserted through an eyelet or opening of a terminal block prior to soldering. B) Lead is inserted into a U or V shaped slot in the terminal prior to soldering. C) Lead is wrapped around a terminal post prior to soldering. D) Lead is tied to adjacent lead with wire tie-wrap near termination point. Electrical Connections: All electrical connections other than soldering shall be provided with positive detent, crimp type insulated Recognized Component connectors suitable for the voltage and temperatures involved. They shall be sized for the wire and mounting terminations. Where hazardous voltage or energy is involved, all wire connections to connectors shall employ a recognized method of double securement. Where fork-type lugs are used, they shall be snap-on or up-turned lug type. Mechanical Assembly: All parts shall be secured by welding, bolts/nuts with lock or star washers, or thread forming screws. Creepage and Clearances: Shall be in accordance with the evaluated product standards.
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General Requirements (Continued) Where present, the following items are required. Internal Plastics: Shall be a Recognized/Certified Component, Plastic, rated minimum 94V-2.
PCB: Shall be a Recognized Component, rated minimum 94V-2 and 105°C.
Tubing and Sleeving: Shall be a Listed/Recognized/Certified Component, rated minimum 300V, 80°C minimum, 94V-2, unless otherwise noted.
Wire Connectors: (Various crimp-type) Shall be Listed/Recognized/Certified Components sized for the wire and mounting terminations. Both the wire insulation and the conductor shall be crimped. Fuseholder: Operator accessible fuseholders, when provided, are connected to the ungrounded conductor(s) of the primary circuit. Internal Wiring: All internal wiring and connections are properly jacketed or enclosed within the equipment. Wiring is routed and secured to reduce the possibility of stress being transmitted to electrical connections, as necessary. All internal conductors in the secondary circuits are routed away from primary circuit conductors and from uninsulated live parts. There is no internal wiring subject to contact by the user when the product is employed as intended. The internal wiring is acceptable for conditions of service to which it will be subjected. Internal conductors consist of Recognized Component AWM insulated individual conductors; sized in accordance with the National Electric code and Canadian Electrical code, as may be applicable for the current expected in the conductor, rated VW-1, 300V, 90°C, and signal level ribbon wiring of flammability rating VW-1. Interconnecting Cords and Cables: Flexible telecommunication cord and cable assemblies employed for interconnection between components are to be rated for and comply with temperatures, exposure to oil or grease and other conditions of service within the environment the product is to be utilized.
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Markings
Etching, molding, die-stamping, silk-screening, stamped-, or etched-metal labels secured by rivets or screws are considered permanent. Recognized/Certified Component, Marking and Labeling Systems, and/or labels tested and deemed suitable for the surface to which it is applied is also considered permanent. Each product is to be permanently marked with the following information: a. The MET Mark (refer to MET Applicant Contract), with the applicant/listee name or
alternate listee name as identified within this report, trade name or trade mark and product model number.
b. Method of applying the MET Mark: Direct Imprinting Purchasing Labels from MET Laboratories, Inc.
Approved MET Mark:
Classified to UL 67 with Respect to installation
and mechanical operation only
Listing E114875
c. The following marking shall be permanent and provided with instruction on location and application of the marking: “Suitable mechanical generator interlock in accordance with article 702 of the national electric code”
d. The interlock kit shall be marked manufacturer’s name, model number and cautionary marking where required and applicable.
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Manual/Service Instructions • Operations and Service instructions are provided with the equipment.
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Alternate Listee Information Alternate listees and product names or model numbers: None.
.
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Applicant’s Responsibilities
Product Modifications: Minor product modifications by the manufacturer may be allowed using the following guidelines: 1. Components identified in this report as "Listed, Recognized, or Certified" and NOT identified with a
manufacturer name or part number may be exchanged with an alternate "Listed, Recognized, or Certified" component of equivalent value.
Example: Appliance Inlet Connector - Listed/Certified Component, IEC 320 style male connector, rated 250 volts and 20 amperes. Mechanically secured to the front panel with screws and locking washers. This inlet connector may be replaced with any Listed/Certified inlet connector with the same
ratings as stated and where mechanical securement is maintained.
2. Components identified by a manufacturer name, part number, or with specific comments, (such as AC only, indoor use only, approved for use in this product only), may NOT be replaced or modified without prior approval from MET Laboratories.
Example: Circuit Breaker - Recognized/Certified Component, ABCD Co. P/N XYZ123, rated 250 volts maximum, 50/60 Hz, 25 full-load amperes, 31.3 trip amperes. Toggle handle marked with IEC on/off symbols. Mechanically secured to the front panel with screws and locking washers. This circuit breaker can NOT be modified or changed without prior approval by MET
Laboratories, Inc.
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Applicant’s Responsibilities (Continued) Project Amendments: For your convenience a Project Amendment Request (PAR) form is available for download at http://corp.metlabs.com/safetyreq/ For any changes related to product construction, manufacturing locations, if the product is intended to be marketed/sold under an alternate name or model number than that originally listed, or any issues which would require notification or change in the status of this file, please complete the form and return to MET Laboratories, Inc. following the instructions provided on the form. If you are terminating or temporarily suspending production of this product for an extended period, please send a letter on company letterhead to:
MET Laboratories, Inc. Attn: Follow Up Services Department
914 West Patapsco Avenue Baltimore, Maryland 21230
USA Fax: (410) 354-3313
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Applicant’s Responsibilities (Continued)
Manufacturing and Production-Line Tests and Documentation performed by Manufacturer. This product is exempt from production line testing.
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Conditions of Acceptability When installed in the end product, consideration shall be given to the following:
1. Interlock kit must be provided with an installation kit and installation manual.
2. Panel board intended to be used corresponds to the associated interlock kit.
3. A bonding conductivity check shall be performed once the installation is completed.
4. A function check shall be performed before use to ensure that the interlock is preventing the normal and the alternate supply circuit breakers from being in motion simultaneously.
5. Installation to be performed by a qualified electrician and per national and local wiring codes.
6. Consideration shall be taken when installing in a panel board. Drilling, cutting or filing is acceptable in the panelboard enclosure during installation of the kit if such openings are indicated by drill points or breakouts on the enclosure. Drill points are made by marking holes on the back of the panel. Temporarily remove the breaker and use the provided drill bit to drill holes slightly through the back of the panel. If drilling, cutting or filing is performed, debris shall not accumulate inside of the panelboard enclosure.
7. The product investigation was limited to surface operation and related plate installation hardware when installed to the panel cover per supplied instructions. The investigation did not include an assessment of modification to the internal construction of a panel. The need for further assessment upon installation may need to be considered by authorities having jurisdiction.
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Critical Components
Figure/item No.
Object/ Parts No.
Manufacturer/ Trademark
Type/ Model Technical Data
Standard
(Edition / year)
Mark(s) of Conformity
Secured Method
1/1 Interlock Mechan-I-Lock ML-SQD-100
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #1 for dimensions
N/A N/A See below
2/1 Interlock Mechan-I-Lock ML-CH-210
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #2 for dimensions
N/A N/A See below
3/1 Interlock Mechan-I-Lock ML-MSI-100
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #3 for dimensions
N/A N/A See below
4/1 Interlock Mechan-I-Lock ML-SQD-200
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #4 for dimensions
N/A N/A See below
5/1 Interlock Mechan-I-Lock ML-GE-200
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #5 for dimensions
N/A N/A See below
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6/1 Interlock Mechan-I-Lock ML-MSI-200
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #6 for dimensions
N/A N/A See below
7/1 Interlock Mechan-I-Lock
ML-BMP-100
12 ga, stainless steel 304-2B. All rounded corners are ¼” round All rounded holes are 0.172” diameter All slots are 0.220 “ wide See Illustration #7 for dimensions
N/A N/A See below
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Figures Figure 1
Model ML-SQD-100
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Figures (Continued) Figure 2.
Model ML-CH-210
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Figures (Continued) Figure 3.
Model ML-MSI-100
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Figures (Continued)
Figure 4
Model ML-SQD-200
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Figures (Continued)
Figure 5
Model ML-GE-200
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Figures (Continued)
Figure 6
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Figures (Continued)
Figure 7
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Illustrations
Illustration 1
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Illustrations (Continued)
Illustration 2.
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Illustrations (Continued)
Illustration 3
Illustration 4
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Illustrations (Continued)
Illustration 5
Illustration 6
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Illustrations (Continued)
Illustration 7
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Testing Considerations A samples of the Mechan-I-Lock, Models ML-SQD-200, ML-GE-200, ML-SQD-100, ML-MSI-200, ML-MSI-100, ML-CH-210 and ML-BMP-100 were subjected to the following test program with satisfactory results. These particular models were tested and considered the most representative of all covered products. All tests were conducted in accordance with UL 67, Panel Boards, Thirteenth Edition, Rev. March 15, 2018. Only these tests were considered necessary due to engineering considerations. Detailed test results are on file at MET Laboratories under project number 102790. TESTS CONDUCTED: 1. Operation Test
2. Grounding Impedance Test
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Conclusion The product(s) covered by this report have been tested, examined, and found to comply with the applicable requirements of UL 67, Panel Boards, Thirteenth Edition, Rev. March 15, 2018. This certification has been granted under a System 3 program as defined in ISO/IEC 17067. Prepared By:
Kristy McKinnon Senior Project Engineer, Safety Laboratory
Reviewed By:
Harold Raab Senior Project Engineer, Safety Laboratory
Approved By:
Keith Greenway Baltimore Safety Lab Manager