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Air Circuit Breakers(TEW45)
TEW45 Air Case Circuit Breaker

Application

TEW45 series intelligent air circuit breakers are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 400A and 6300A. Mainly used for distributing energy and protecting the circuit and power supply
device against short circuit, under voltage, single-phase ground fault, etc. The TEW45 has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off
the power and improve the reliability of power supply.The products conform to IEC60847-2, IEC60947-4

standards.

Type Frame rated current InmA Rated current InA Rated voltage Ue V Rated insulation voltage Ui V
TEW45-2000 2000 400, 630, 800, 1000, 1250, 1600, 2000 AC 400/690 800
TEW45-3200 3200 2000, 2500, 2900, 3200
TEW45-6300 6300 4000, 5000, 6300


Type Breaking capacity 1cu KA Rated run shortcircuit breaking capacity 1cs KA Rated short-time current 1cw KA Arcing distance mm(draw-out)
400V 690V 400V 690V 400V
TEW45-2000 80 50 50 40 50 0
TEW45-3200 100 65 80 50 65
TEW45-6300 120 85 100 80 85


Current multiple 1.05Ir1 1.3Ir1 1.5Ir1 2.0Ir1
Tripping time >2h nont ripping <2h ripping Setting time tL Tripping time in 1.05IrtL
15s 30s 60s 120s 240s 480s 8.4s 16.9s 33.7s 67.5s 135s 270s

Note:
1. When it has three protection, setting value cannot be cross
2. The ex-factor current setting value is Ir1=In1=In, Ir2=4In, Ir3=50kA and Ir4=0.2 in if there is no specifications on the contract.
Type Pole L1 L2 L3 L4 L5 W1 W2 b In A a
TEW45-2000 3P 375 335 292 356 247 421 467 137 400~630 10
4P 470 430 292 360 247 800~1600 15
TEW45-3200 3P 435 395 352 325 307 2000~2500 20
4000A 550 510 352 440 307
4P 550 510 352 440 307 494 540 212 3200~4000 30
TEW45-6300 4000/5000 3P 813 773 352 703 307 4000 20
4P 928 888 352 818 307 5000~63000 30
TEW45-6300 3P 928 888 352 818 307

TEW45-3200 could increase to 4000A, its installatin dimension is same with TEW45-3200, 4P

Scpe of Application