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Target indicators, Output contacts, Resistive ratings – Basler Electric BE1-50/51B-232 User Manual

Page 17: Inductive ratings, Type tests, Isolation, Surge withstand capability, Impulse, Radio frequency interference (rfi), Target indicators -7

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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.

Resistive Ratings

120/240 Vac:

Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3
amperes continuously, and break 5 amperes.

125/250 Vdc:

Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3
amperes continuously, and break 0.3 ampere.

Inductive Ratings

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).

Type Tests

Isolation

Meets IEC 255-5 and exceeds IEEE C37.90-1989, one-minute dielectric (high potential) tests as follows.

All circuits to ground:

2,828 Vdc or 2,000 Vac

Input to Output Circuits:

2,828 Vdc or 2,000 Vac

Surge Withstand Capability

Qualified to IEEE C37.90.1-1989 Standard Surge Withstand Capability (SWC) Tests for Protective Relays
and Relay Systems.

Impulse

Qualified to IEC 255-5.

Radio Frequency Interference (RFI)

9252000896 Rev B

BE1-50/51B-232 General Information

1-7

Field-tested using a 5-watt, hand-held transceiver operating at random frequencies centered around 144
MHz and 440 MHz, with the antenna located 6 inches from the relay in both horizontal and vertical
planes.