TEST SWITCHES TEST SWITCHES - Brooks Utility

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COMPACT Test Switches Compact Semi-Flush Mounted Test Switches Switch Handle Short Circuit Clip Switch Blade Inner Spring Contact Jaw Outer Spring Clip Contact Jaw Test Jack Phenolic Barrier Brass Rivet Molded Plastic Base Test Ear One Piece Hinge Jaw Screw Type Terminal Base Molded plastic which has excellent insulating qualities and non-tracking characteristics. Switch Blade Standard size special tempered copper. Switch Handle Standard color unless specified is black. Other colors available are: red, yellow, orange, brown, green, blue, white, red with white tracer, green with white tracer, black with white tracer and white with black tracer. The design of all handles will permit multiple ganging if desired and will hold identification cards. The handle has deep serrations for utmost safety and convenience, offering a secure grip when operating the blade. 16 Contact Jaw Double spring reinforced contacts designed and developed by Meter Devices Company are considered by far the best contacts available. Contact jaws are made of high conductivity spring bronze and are reinforced with high conductivity spring bronze clips. The jaw is a spring in itself and will not spread, thus assuring perfect contact, low resistance, no over-heating and easy operation at all times. The added reinforcement of the clip is positive assurance at long life and perfect action. Hinge Jaw Constant and uniform smooth pressure against the switch blade is assured by the use of a spring washer under the head of the hinge rivet, which maintains the correctly adjusted jaw tension. Short Circuit Clip This clip developed by Meter Devices Company eliminates the weakest and most troublesome part of present day test switches. It is a ‘make-before-break’ type, made from one piece of high conductivity spring bronze. It cannot get out of alignment, while projections on the knife-blade prevent raising the blade to a point where it is out of contact with the clip. A return strap completes the circuit to the spring test jack. Test Jack A pair of high conductivity bronze springs are built into the return circuit of a pair of current elements of a Meter Devices’ test switch. The test jack keeps the secondary circuit of the transformer closed. When it is desired to isolate the current coil, Cat. #903-1116 test plug is used. The plug also provides a quick and easy method of connecting indicating or graphic meters into the circuit. A switch blade is also included in the assembly.
COMPACT Test Switches Test Ear Allows testing from front of switchboard by use of clips and test plugs. Designed to positively prevent clips coming off unless spring tension is released. Stud Screw type terminal for back connection with screw and cup washer furnished for each stud connection. In front connected applications, terminal connections are made with screw stud and hex nut. These parts are furnished with each switch. Case and Cover Semi-Flush case is insulated for use with steel panel switchboards and is fastened by means of four screws furnished with the case. The screws are hidden by the cover and walls. Lucite cover is held in place with knurled cover stud nuts. Cover studs have wire sealing holes. Covers for front connected switches are optional and are made of Lucite. Barrier Phenolic barriers are provided between all poles. Meter Devices can supply test switches to meet practically any meter or relay testing requirement. Those standard switches are listed on pages 18 and 20. But if you need a special test switch you may design one to meet you own special use by application of the information outlined below. These assembly numbers are not the catalog numbers but are for convenience of switch layout. Standard Compact Switch Assemblies – for ordering test switches not cataloged For those desiring to use an oversize case with the test switch Assembly #1c Single pole potential Assembly #4c Solid thru bar Assembly #12c Single pole current element - right Assembly #13c Single pole current element - left Assembly #14c Double pole current element Assembly #15c Spacing Base Supplied between all poles Assembly #16c Double pole potential Assembly #17c Three pole potential Assembly #19c Barrier Assembly #26c Load test jack double pole current element right hand Assembly #27c Load test jack double pole current element left hand Assembly #28c Load test jack Single pole potential current element 17
Page 1 and 2: TEST SWITCHES • Standard • Comp
Page 3 and 4: Meter Devices Test Switches Meter D
Page 5 and 6: Meter Devices Test Switches The Sho
Page 7 and 8: Meter Devices Test Switches Three-P
Page 9 and 10: Meter Devices Test Switches Small B
Page 11 and 12: Meter Devices Test Switches Test Sw
Page 13 and 14: STANDARD Test Switches Standard Swi
Page 15 and 16: STANDARD Test Switches Standard Swi
Page 17: COMPACT & MINI-COMPACT Test Switche
Page 21 and 22: COMPACT Test Switches 1 15/16”
Page 23 and 24: COMPACT Test Switches D L C L C COV
Page 25 and 26: MINI-COMPACT Test Switches Test Jac
Page 27 and 28: MINI-COMPACT Test Switches “B”
Page 29 and 30: MINI-COMPACT Test Switches FRONT CO
Page 31 and 32: ROTO-TEST Switches Roto-Test Switch
Page 33 and 34: Meter Devices Test Switches ESCUTCH
Page 35 and 36: Meter Devices Test Switches BROOKS

TEST SWITCHES TEST SWITCHES - Brooks Utility

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