Masterclad™ VR Circuit Breaker
Class 6055 / Refer to Catalog 6055CT9901
Masterclad™ Medium Voltage Metalclad Switchgear (UL Listed)
The Reliability of a Quality Design
Listed Metalclad |
Two-high Masterclad 5–27 kV |
Masterclad™ offers a customizable solution for demanding medium voltage applications. Rugged construction is coupled with low maintenance 3-cycle vacuum circuit breaker.
A comprehensive design testing program has been performed by Schneider Electric. The switchgear and breakers are designed and tested in accordance with all applicable ANSI Standards C37.04, C37.06, C37.09, and C37.20.2. The switchgear and breakers meet the requirements of ANSI, IEEE, NEMA, and exceeds most IEC standards.
Ratings
| Nominal voltage (kV) |
4.16 |
7.2 |
13.8 |
24.9 |
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| Maximum voltage (kV) |
4.76 |
8.25 |
15.0 |
27.0 |
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| BIL (kV) |
60 |
95 |
95 |
125 |
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| Frequency (Hz) |
50/60 |
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| Continuous amperes (A) |
1200–4000 |
1200–2000 |
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| MVA (reference only) |
250 |
350 |
500 |
500 |
500 |
750 |
1000 |
1500 |
1250 |
2000 |
| Short-time rating (kA) 3 seconds |
40 |
50 |
63 |
50 |
25 |
40 |
50 |
63 |
25 |
40 |
| Close and latch rating (kA) (peak) |
104 |
130 |
164 |
130 |
65 |
104 |
130 |
164 |
68 |
108 |
Type VR Vacuum Circuit Breaker
 Vacuum VR Circuit Breaker |
The VR breaker is a horizontal drawout type designed to provide long life, reduced maintenance, and ease of handling. The Type RI advanced design motor-charged stored energy mechanism is a model of reliability with simplicity-with an operating life exceeding ANSI requirements. The VR circuit breaker is UL labeled and includes a permanently mounted manual charging handle.
Standard features include:
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3-cycle interrupting rating
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Rated per ANSI/IEEE C37.06, C37.09, C37.013, C37.54
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UL Listed
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Motor operated, spring-charged, stored-energy operating mechanism
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Permanently mounted manual charging handle
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Five normally open and normally closed auxiliary contacts
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Wheels that roll directly to floor level from lower cell
Switchgear Construction
Masterclad 27 kV, Outdoor |
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High-speed operation—3–cycles
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Removable (draw-out) circuit breaker
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Grounded metal barriers enclose all live parts
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Automatic shutters driven by breaker racking mechanism
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Closed door breaker position indication
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Closed door breaker racking mechanism
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Insulated main bus—aluminum or copper
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Standard glass polyester insulators or optional epoxy and porcelain insulators
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Mechanical interlocks
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Disconnect type CPT and VT trucks
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Grounded breaker truck in and between test/disconnected and connected positions
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Low voltage instrument/control compartment isolated from primary voltage areas
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Compliance to ANSI/IEEE standards C37.20.2 and C37.55 (designed and tested to comply with or exceed ANSI and IEEE standards)
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ISO 9001 Certification (Designed and manufactured in a facility that is Quality Systems Certified by Underwriters Laboratories, Inc.® to ISO 9001)
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Indoor NEMA 1 enclosure
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Outdoor NEMA 3R enclosure
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Walk-in enclosure
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Non walk-in enclosure
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