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Address: 1170 Foster City Blvd., Suite 314,
Foster City, CA 94404, USA -
Call Us: +1 (650) 572 0122
Email Us: info@omnicor.com
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Monday - Friday: 08:00 - 17:00
Saturday - Sunday: Closed
Vacuum interrupters
A vacuum interrupter is a switch which uses electrical contacts in a vacuum. It is the core component of medium-voltage and high-voltage circuit-breakers.
Since the arc is contained within the interrupter, switchgear using vacuum interrupters can be very compact compared with switchgear using air, SF6 or oil as the arc-suppression medium. Vacuum interrupters can be used for circuit-breakers (VCB), load break switches (LBS), contactors, rail circuit breakers, etc. Circuit breaker vacuum interrupters are primarily used in the power sector in substation and power-generation facilities, and load-switching vacuum interrupters are used for power grid end users.
We support national and international standards like ANSI/IEEE C37.60, IEC 62271-100, JIS, GB and GOST.
Vacuum interrupters for Circuit Breakers
| Rated Voltage | Rated lightning impulse voltage | Power frequency withstand voltage | Rated Current | Short circuit breaking current with at least 30-40% DC component and Interrupter (Outdiameter-Style) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| kV | kV | kV | A | 12.5 kA | 16 kA | 20 kA | 25 kA | 31.5 kA | 40 kA | 50 kA |
| 7.2 | 60 | 20 | 630 | M20QC (φ52-A) |
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| 800/1250 | M30RC (φ94-A) |
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| 1600/2000 | M40SC (φ94-A) |
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| 2500/3150 | M50TC (φ110-A) |
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| 12/15 | 75 | 28 | 630 | M52QC (φ65-B) |
M41QC (φ69-B) |
MA61RC** (φ94-B) |
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| 800/1250 | M51RC (φ82-B) |
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| 1600/2000 | M71SC (φ94-B) |
M81SC (φ110-B) |
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| 2500/3150 | M71TC (φ110-B) |
M81TC (φ132-B) |
MA131TC (φ150-B) |
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| 17.5/24 | 95/125 | 38/50 | 630 | M52QC* (φ65-B) |
MA102RC** (φ94-B) |
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| 800/1250 | M72RC* (φ75-B) |
M82RC* (φ75-B) |
M102RC (φ94-B) |
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| 1600/2000 | M102SC (φ94-B) |
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| 2500 | M132TC (φ120-B) |
M203TC (φ120-C) |
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| 36/38 | 175 | 80 | 630 | M83QC* (φ75-B) |
M93QC* (φ94-B) |
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| 800/1250 | M123QC* (φ94-B) |
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| 1600/2000 | M163SC* (φ110-B) |
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| 2500 | M203TCB* (φ120-C) |
M253TC* (φ132-C) |
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| 52 | 250 | 90 | 1250/2000 | MA285SC* (φ132-B) |
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| 72.5 | 325 | 140 | 1250/2000 | MA317SC (φ132-B) |
MA467SC (φ150-B) |
MA507SC (φ150-B) |
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* :Additional insulation necessary ** :Capacitor bank switching |
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Vacuum interrupters for Load Break Switches
| Rated Voltage | Rated lightning impulse voltage | Power frequency withstand voltage | Rated Current | Short circuit breaking current | VI Type (Dia.-Style) |
|---|---|---|---|---|---|
| kV | kV | kV | A | kApeak | |
| 12/15.5 | 95 | 35 | 630 | 40 | M01QC (φ60-A) |
| 24/27 | 125 | 60 | 630 | 40 | M02QC (φ65-B) |
| 36/38 | 150 | 70 | 630 | 40 | M03QC (φ65-B) |
Vacuum interrupters for Auto-Reclosers
| Rated Voltage | Rated lightning impulse voltage | Power frequency withstand voltage | Rated Current | Short circuit breaking current | VI Type (Dia.-Style) |
|---|---|---|---|---|---|
| kV | kV | kV | A | kA | |
| 15.5/27 | 110/125 | 50/60 | 630 | 12.5 | M52QC* (φ65-B) |
| 15.5/27 | 110/125 | 50/60 | 800 | 16 | M72QC* (φ75-B) |
| 38 | 150 | 70 | 630 | 12.5 | M83QC* (φ75-B) |
| 38 | 150 | 70 | 800 | 16 | M93QC* (φ82-B) |
Vacuum interrupters for Contactor Switches
| Rated Voltage | Rated lightning impulse voltage | Power frequency withstand voltage | Rated Current | Short circuit breaking current | VI Type (Dia.-Style) |
|---|---|---|---|---|---|
| kV | kV | kV | A | kA | |
| 6.6 | 45 | 16 | 400 | 4 | 5G-1 (φ52-A) |
| 6.6 | 45 | 16 | 400 | 6 | 7.5G (φ52-A) |
Vacuum interrupters for Mobile Railway applications
| Rated Voltage | Rated lightning impulse voltage | Power frequency withstand voltage | Rated Current | Short circuit breaking current | Short circuit making current | VI Type (Dia.-Style) |
|---|---|---|---|---|---|---|
| kV | kV | kV | A | kA | kA | |
| 18/36 | 170 | 70(16.6Hz) 70(50/60Hz) |
750(16.6Hz) 450(50/60Hz) |
at 18kV →25(16.6Hz) at 36kv →20(50/60Hz) |
at 18kA →62.5(16.6Hz) |
163SCM (φ132-C) |