Masterclad; VR Circuit Breaker

Class 6055 / Refer to Catalog 6055CT9901 or Handouts 6055HO0901, 6000HO1001

Masterclad™ Medium Voltage Metalclad Switchgear (UL Listed)

The Reliability of a Quality Design

Listed Metalclad
Switchgear


Two-high Masterclad 5–27 kV
Indoor, Metalclad Switchgear

The quality of Square D brand Masterclad medium voltage metalclad switchgear stems from a design and manufacturing process that focuses on long-term switchgear performance with the highest degree of reliability.

Based on specific customer application needs, Schneider Electric engineers and technicians select the appropriate standard sections and bus configurations, with the ability to customize where needed. After the specified circuit breakers, instrument and control power transformers, relays, meters and other components are selected and approved. All are factory-assembled, wired, and tested as a complete assembly.

Ratings

Nominal voltage (kV)

4.16

7.2

13.8

24.9

Maximum voltage (kV)

4.76

8.25

15.0

27.0

BIL (kV)

60

95

95

125

Frequency (Hz)

50/60

Continuous amperes (A)

1200–4000

1200–2000

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
for Masterclad Switchgear

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:

  • 3-cycle interrupting rating

  • Rated per ANSI/IEEE C37.06, C37.09, C37.013, C37.54

  • UL Listed

  • Motor operated, spring-charged, stored-energy operating mechanism

  • Permanently mounted manual charging handle

  • Five normally open and normally closed auxiliary contacts

  • Wheels that roll directly to floor level from lower cell

Switchgear Construction

Masterclad 27 kV, Outdoor
Non Walk-in, Metalclad Switchgear

  • High-speed operation—3–cycles

  • Removable (draw-out) circuit breaker

  • Grounded metal barriers enclose all live parts

  • Automatic shutters driven by breaker racking mechanism

  • Closed door breaker position indication

  • Closed door breaker racking mechanism

  • Insulated main bus—aluminum or copper

  • Standard glass polyester insulators or optional epoxy and porcelain insulators

  • Mechanical interlocks

  • Disconnect type CPT and VT trucks

  • Grounded breaker truck in and between test/disconnected and connected positions

  • Low voltage instrument/control compartment isolated from primary voltage areas

  • Compliance to ANSI/IEEE standards C37.20.2 and C37.55 (designed and tested to comply with or exceed ANSI and IEEE standards)

  • ISO 9001 Certification (Designed and manufactured in a facility that is Quality Systems Certified by Underwriters Laboratories, Inc.® to ISO 9001)

  • Indoor NEMA 1 enclosure

  • Outdoor NEMA 3R enclosure

    • Walk-in enclosure

    • Non walk-in enclosure

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