Sylvania Circuit Breaker
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 GTE SYLVANIA LOW VOLTAGE CIRCUIT BREAKER SSPB 1600 AMP  US $1,650.00
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 GTE Sylvania 800 amp SSPB low voltage circuit breaker US $1,200.00
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 GTE SYLVANIA LOW VOLT CIRCUIT BREAKER SSPB 800A 800 AMP US $1,150.00
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 GTE Sylvania QL2430400 400 Amp 240 Volt Circuit Breaker US $650.00
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 SYLVANIA UNELEC 500 AMP CIRCUIT BREAKER SJK 3 C 500 US $625.00
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 Commander Sylvania QBH Circuit Breaker 360 3 Pole 60 Amp US $400.00
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 Sylvania QFB24 3 Pole 125 Amp Circuit Breaker US $350.00
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 Sylvania QFB24 3 Pole 150 Amp Circuit Breaker US $350.00
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 GTE Sylvania QFP241503 150 Amp 240 Volt Circuit Breaker US $350.00
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 Commander Sylvania QBH Circuit Breaker 320 3 Pole 20 Amp US $150.00
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 New Commander Sylvania QB230 Circuit Breaker US $145.00
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 SYLVANIA CIRCUIT BREAKER C 315 NEW BOX OF 3 US $140.00
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 SYLVANIA CIRCUIT BREAKER QC 15 NEW BOX OF 3 US $125.00
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 SYLVANIA 15A 3P CIRCUIT BREAKER QB24 QB243015 G 20A US $124.50
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 Sylvania 15A Circuit Breaker SEH 2 C 15 3 Pole New US $120.00
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 Sylvania 20A Circuit Breaker SEH 2 C 20 2 Pole New US $120.00
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 SYLVANIA 20A 3P CIRCUIT BREAKER QB24 QB243020 G 20E US $118.75
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 SYLVANIA 30A 3P CIRCUIT BREAKER Q24 Q243030 G 20D US $114.95
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 SYLVANIA 40A 3P CIRCUIT BREAKER Q24 Q243040 G 20B US $104.50
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 SYLVANIA CIRCUIT BREAKER SEH 3 C 20 NICE US $100.00
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 SYLVANIA CIRCUIT BREAKER SEH 3 C 40 NICE US $100.00
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 SYLVANIA 15A 3P CIRCUIT BREAKER QB24 QB243015 G 20C US $78.50
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 SYLVANIA 100AMP 3 POLE CIRCUIT BREAKER 240 VOLT US $59.00
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 GTE Sylvania 50A Circuit Breaker C 350 3 Pole 120 240V US $52.00
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 GTE Sylvania C 360 Circuit Breaker 60A 3 pole US $49.95
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 Sylvania Zinsco QCLLNA Q 120 240V 60 Amp 2 Pole Molded Case Circuit Breaker US $48.00
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 GTE SYLVANIA Q260 60 AMP CIRCUIT BREAKER US $42.00
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 Zinsco Sylvania GTE Circuit Breaker rc38 40 40 Amp D US $35.00
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 Zinsco Sylvania GTE Circuit Breaker rc38 30 30 Amp D US $30.00
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 Zinsco Sylvania GTE UB inc Circuit Breaker rc38 15 US $30.00
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 SYLVANIA HSEH 1 C 20 1POLE 20AMP 277VAC CIRCUIT BREAKER US $29.95
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 SYLVANIA SEH 1 C 20 1POLE 20AMP 277VAC CIRCUIT BREAKER US $29.95
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 GTE SYLVANIA Zinsco double pole 50 amp circuit breaker US $26.95
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 SYLVANIA USED 30 AMP 3 POLE CIRCUIT BREAKER US $25.00
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 Sylvania 15A Circuit Breaker C 315 3 Pole 240 VAC Used US $25.00
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 GTE Sylvania C360 Circuit Breaker 60A 3P G 15A US $24.95
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 SYLVANIA 30A 2P CIRCUIT BREAKER QCTYPE QC230 G 21 US $22.50
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 Sylvania E 16248 20A 120 240V 1 Pole Circuit Breaker US $21.24
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 SYLVANIA GTE 15 AMP Tandem A1515N A Circuit Breaker US $21.20
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 20A 2 POLE SYLVANIA CIRCUIT BREAKER A USED US $20.00
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 Zinsco Sylvania GTE Circuit Breaker rc38 15 20 US $20.00
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 GTE Sylvania Zinsco Circuit Breaker 2 Pole 15A 120 240 Q QC R38 US $16.95
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 Sylvania Shallow Stab Electrical Circuit Breaker US $15.99
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 Zinsco Sylvania GTE Circuit Breaker rc38 20 20 Amp D US $15.00
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 Zinsco Sylvania GTE Circuit Breaker rc38 20 20 Amp S US $15.00
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 GTE Sylvania Type C Circuit Breaker 3 Pole 20 A US $15.00
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 GTE SYLVANIA E16248 BQ 3P 240V 20A CIRCUIT BREAKER US $14.99
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 NEW SYLVANIA 40 Amp 2 Pole C240 Type C Circuit Breaker US $14.80
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 GTE Sylvania 2 Pole C270 70 AMP 120 240 V Type C CIRCUIT BREAKER US $12.99
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 SYLVANIA TYPE C 2 POLE 40 AMP CIRCUIT BREAKER US $10.00
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 GTE Sylvania 15A Circuit Breaker E 16248 2 Pole USED US $10.00
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 GTE Sylvania 15A Circuit Breaker C 215 2 Pole 120 240V US $10.00
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 Zinsco Sylvania GTE Circuit Breaker rc38 15 15 Amp S US $10.00
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 Zinsco Type Q Sylvania 20 Amp Single Pole Circuit Breaker US $10.00
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 SYLVANIA 15 AMP 2 POLE C TYPE CIRCUIT BREAKER US $7.10
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 GTE Sylvania 20A Circuit Breaker Type BQ NEW 1 Pole US $7.00
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 Sylvania GTE Type C C220 2 Pole 20 amp Circuit Breaker US $6.99
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 C 130 SYLVANIA 30 AMP1 POLE120 240 VOLT CIRCUIT BREAKER US $6.00
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 SYLVANIA 30 AMP 2 POLE CIRCUIT BREAKER TYPE C TT 75 US $5.50
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 Sylvania GTE Type C C230 2 Pole 30 amp 120 240v Circuit Breaker US $5.00
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 Sylvania 30A Circuit Breaker C 130 1 Pole 120 240V NEW US $5.00
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 Sylvania 40A Circuit Breaker C 140 1 Pole 120 240V US $5.00
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 Sylvania GTE Type 1 Pole 15 amp and 20 amp Circuit Breaker US $5.00
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 GTE SYLVANIA C130 30 AMP CIRCUIT BREAKER 30A C 130 US $3.99
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 SYLVANIA TYPE C 1 POLE 15 AMP CIRCUIT BREAKER US $2.90
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 Sylvania GTE Type C 1 Pole 15 amp C115 Circuit Breaker US $2.75
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 GTE SYLVANIA Type C Circuit Breaker 1 Pole 15 Amp E16248 120 240 volt US $2.00
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Change main electrical panel, or use duplex circuit breakers?
We have 200 AMP service.
Our circuit breaker panel is full. This is a ~20yr old sylvania panel and is in a good shape. I need to add two circuits to my garage and a wondering:
1. Should I replace two of my single circuit breakers with two twin circuit breaker such as http://www.amazon.com/exec/obidos/ASIN/B000H5T8C4/dvdhills-20? (I only need 20 amps on each circuit)
2. Should I change the service panel and buy a new one which has more spaces?
The new outlets won't add significant amperage overhead since they won't be used simultaneously.
Correction to Dr. Weasel:
"Remember you cannot draw more than 80% of the rated feed, by design."
Actually, according to the National Electrical Code, the load for a circuit should only be design for 80% of the rating of the circuit/breaker. However, the breaker can actually handle 100% of the load. Your 200-amp main breaker will protect the electrical service panel from overload if it is working properly.
What I would do in this case is pull two adjacent breakers out of the panel. Use those two slots to feed a 100-amp, 12-pole surface-mounted panel located on the wall near the existing panel. Feed the new panel with a smaller breaker, say 40-amps. Put the two breakers you pulled into the new panel. Now you have 10 extra breaker spaces.
You can find a 100-amp panel at a hardware store for around $50. However, you should always be aware of overloading the 200-amp panel. Normally, you'll never use more than 30-40% of the 200-amps, but you should still be wary.
Everything I described above is code legal.
Monstrosity of Luminosity
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