Basler Electric BE1-50/51B-231 - Manual (Page 17)

9252000895 Rev C BE1-50/51B-231 General Information 1-7
Harmonic Response
Figure 1-4 shows that a relay set for 1 ampere pickup would pick up at 0.96 amperes with a current
containing 40% seventh harmonic. This corresponds to a 10:1 rejection ratio. Other conditions may be
evaluated in the same manner.
Figure 1-4. Harmonic Rejection
Target Indicators
Gravity latched, manually reset targets indicate that current of 0.2 amperes or greater was present in the
trip circuit. Target coil resistance is less than 0.1 ohms and operate time is less than one millisecond. See
Output Contacts for maximum current rating.
Output Contacts
Output contacts are surge protected and rated as follows.
120/240 Vac ............................... Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3
amperes continuously, and break 5 amperes.
Resistive Ratings
125/250 Vdc ............................... Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3
amperes continuously, and break 0.3 ampere.
120/240 Vac, 125/250 Vdc ........ Make and carry 30 amperes for 0.2 seconds, carry 7 amperes for 2
minutes, 3 amperes continuously, and break 0.3 ampere. (L/R = 0.04).
Inductive Ratings
Type Tests
Isolation ..................................... IEEE C37.90-2005
Transient Surge ......................... IEEE C37.90.1-2004
Radiated Interference ................ IEEE C37.90.2-2004
Electrostatic Discharge .............. IEEE C37.90.3-2006
Vibration ..................................... IEC 255-21-1
Shock and Bump ....................... IEC 255-21-2