9424200994 Rev N 557
49RTD - Resistance Temperature Device Protection (Optional)
Pickup
Setting Range ........................................................... 0 to 250°C (32 to 482°F)
Accuracy.................................................................... ±2% or ±2
°C (±3.6°F), whichever is greater
Reset/Pickup Ratio .................................................... 105% / 95% ±1% (over / under) or 5
°C minimum
Time Delay
Setting Range ........................................................... 0 to 600,000 ms
Accuracy.................................................................... ±1 s
50 - Instantaneous Overcurrent Protection
Pickup
5 Ampere CT Setting Range ..................................... 0.5 to 150 A
1 Ampere CT Setting Range ..................................... 0.1 to 30 A
SEF Setting Range ................................................... 0.01 to 7.5 A
Unbalanced Setting Range ....................................... 2 to 100%
Dropout ..................................................................... 93 to 99% of the actual pickup value
3Phase, IA, IB, IC, IG Accuracy
5 Ampere CT ............................................................. ±2% or ±50 mA, whichever is greater
1 Ampere CT ............................................................. ±2% or ±10 mA, whichever is greater
SEF (Pickup Setting of 0.01 to 4.99 A) ..................... ±(2.5% + 4.5 mA)
SEF (Pickup Setting of 5 to 7.5 A) ............................ ±(5% + 4.5 mA)
3I0, I1, I2 Accuracy
5 Ampere CT ............................................................. ±3% or ±75 mA, whichever is greater
1 Ampere CT ............................................................. ±3% or ±15 mA, whichever is greater
Unbalanced Accuracy
5 Ampere CT ............................................................. ±2% of pickup setting
1 Ampere CT ............................................................. ±2% of pickup setting
Time Delay
Setting Range ........................................................... 0 to 60,000 ms
Accuracy
Phase & Ground ........................................................ ±0.5% or ±½ cycle, whichever is greater, plus trip
time for instantaneous response (0.0 setting)*
Residual .................................................................... ±0.5% or ±½ cycle, whichever is greater, plus trip
time for instantaneous response (0.0 setting)*
* Trip Time for 0.0 Delay Setting .............................. 1¼ cycles maximum for currents ≥ 5 times the pickup
setting. 1¾ cycles maximum for a current of 2
times pickup. Two cycles maximum for a current
of 1.05 times the pickup setting.
50BF - Breaker Failure Protection
Phase & Ground Pickup
5 Ampere CT Setting Range ..................................... 0.25 to 10 A
1 Ampere CT Setting Range ..................................... 0.05 to 2 A
SEF ........................................................................... 0.01 to 0.5 A
Accuracy
5 Ampere CT ............................................................. ±2% or ±50 mA, whichever is greater
1 Ampere CT ............................................................. ±2% or ±10 mA, whichever is greater
SEF ........................................................................... ±(2.5% + 2.5 mA)
BE1-11g Specifications
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