TRENDnet BE1-87G User Manual

Page 11

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BE1-87G - General Information

Pickup Accuracy

(1 Ampere)

For I

R



1 ampere, ±5% of the operate pickup characteristic or 25

milliamperes whichever is greater. Actual operating characteristics are
shown in graph format in Section 5,

Testing And Setting

the relay.

For I

R



1 amperes, up to a maximum of 4 amperes, ±8% of the operate

pickup characteristic or 150 milliamperes, whichever is greater. Actual
operating characteristics for pickup values between 1 and 4 amperes are
shown in graph format in Section 5,

Testing And Setting

the relay.

Dropout

Greater than 90% of operate characteristic.

Timing

Less than 30 milliseconds at 10 times pickup setting; 70 milliseconds
maximum. See Section 5,

Testing And Setting

the relay, for the pickup

response timing curve.

Power Supply

Power for the internal circuitry may be derived from ac or dc external power
sources as indicated in Table 1-1.

Table 1-1. Power Supplies

Type

Nominal Input

Voltage

Input Voltage

Range

Burden at Nominal

(Maximum)

K (Mid Range)

48 Vdc

24 to 60 Vdc

5.0 W

J (Mid Range)

125 Vdc
120 Vac

62 to 150 Vdc
90 to 132 Vac

5.5 W

14.5 VA

L (Low Range)

+

24 Vdc

12 to 32 Vdc

5.5 W

Y (Mid Range)

48 Vdc

125 Vdc

24 to 60 Vdc

62 to 150 Vdc

5.5 W
6.0 W

Z (High Range)

250 Vdc
230 Vac

140 to 280 Vdc
190 to 270 Vac

7.0 W

20.0 VA

+

Type L power supplies may initially require 14 Vdc to begin operating. Once
operating, the voltage may be reduced to 12 Vdc and operation will continue.

Output Contacts

Output contacts are rated as follows.

Resistive:

120/240 Vac

Make and carry 30 amperes for 0.2 seconds, carry 7

amperes

continuously, and break 7 amperes.

125/250

Vdc

Make and carry 30 amperes for 0.2 seconds, carry 7

amperes

continuously, and break 0.3 ampere.

Inductive:

120/240 Vac,

Make and break 0.1 A (L/R = 0.04).

125/250 Vdc

Make and break 0.1 A (L/R = 0.04).

Targets

Magnetically latched, manually reset target indicators may be optionally
selected as either internally operated or current operated. Current
operated targets require a minimum of 0.2 ampere through the output trip
circuit and are rated at 30 amperes for 1 second, 7 amperes for 2 minutes,
and 3 amperes continuously.

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