Basler-electric BE3-27T User Manual download pdf

www.basler.com

+1 618.654.2341 (USA)

info@basler.com

Model

BE3-27T, BE3-59T,

and BE3-27T/59T

INTRODUCTION

BE3 ac voltage relays provide voltage monitoring and protection in

both single-phase and three-phase systems. They are used in

applications such as utility mains failure, regulation of power

supplies, and to protect voltage sensitive equipment. Undervoltage,

overvoltage, and combined over/undervoltage units are available.

BE3 ac voltage relays operate when the adjustable trip point is

reached. An external time delay control is provided with an

adjustment of 0 to 10 seconds (relay operating time is typically 200

milliseconds). This time delay may be used to prevent false tripping

when there are slight variations in the voltage supply. On

overvoltage units, the output relay energizes when the input signal

exceeds the trip point. On undervoltage units, the output relay de-

energizes when the input signal goes below the trip point. A red

LED indicates the state of the relay. A green LED indicates the

condition of the power supply.

SPECIFICATIONS

Inputs

All units are self powered.

Nominal Voltage: 120 Vac, 240 Vac, 380 Vac, or 480

Vac

Overload Withstand: 1.25 times nominal continuously.

2 times nominal for 3 s.

Frequency: 50, 60, or 400 Hz

Burden: <2.5 VA per phase on single units

and <3 VA on combined units

Setpoint

Undervoltage Range: Adjustable 75 to 100% (±3%) of

nominal

Overvoltage Range: Adjustable 100 to 125% (±3%) of

nominal

Repeatability: Better than 0.5% of full span

Time Delay: Adjustable 0 to 10 seconds

Operating Time: 200 ms typical

Differential: Fixed 1% of nominal

Outputs

Relay Type: D.P.D.T.

AC Rating: 250 V, 5 A, non-resistive,

1200 VA

DC Rating: 125 V, 1 A, resistive, 120 W

Mechanical Life: 5 million operations

Temperature

Operating Temperature: 0°C (32°F) to 60°C (140°F)

Functional Temperature: –25°C (–13°F) to 70°C (158°F)

Storage Temperature: –40°C (–40°F) to 70°C (158°F)

Temperature Coefficient: 0.03% per °C (300 ppm/°C)

Humidity

Relative Humidity: 95% non-condensing

Physical

Mounting: DIN rail 1.38” by 0.29” (35 mm by 7.5

mm)

Case: Complies with IEC 529, DIN 40050,

BS 5490

Case Material: Complies with UL 94VO

Weight

Single Function: 0.88 lb (0.4 kg)

Multiple Function: 1.32 lb (0.6 kg)

Size

Single Function: 2.17” wide (55 mm)

Multiple Function: 3.93” wide (100 mm)

AGENCY

cULus listed to UL 508 and CSA C22.2 No. 14

CE compliant

GOST-R certified per the relevant standards of Gosstandart of

Russia

OPERATION

BE3-27T and BE3-59T ac voltage relays have two external, user-

adjustable controls marked SET and DELAY. The BE3-27T/59T has

four controls: UNDER SET, OVER SET, UNDER DELAY, and

OVER DELAY. The SET control adjusts the relay trip point. An

overvoltage trip causes the relay output to energize when the

voltage rises above the SET threshold. The overvoltage SET level

is adjustable from 100 to 125% (±3%) of nominal input (V

nom

). An

undervoltage trip causes the relay output to de-energize when the

voltage decreases below the SET threshold. The undervoltage SET

level is adjustable from 75 to 100% (±3%) of nominal input. Time

delay is the amount of time that elapses after the trip point is

reached and when the output relay operates.

Setting Example: a BE3-59T relay with a nominal input rating of 240

Vac has the following settings:

• SET - 120%

• DELAY - 4 seconds

A trip occurs when the sensing voltage rises above 288 Vac and 4

seconds elapses. Reset occurs when the voltage decreases below

285.6 Vac (1% of nominal below setpoint).

INSTALLATION

BE3 ac voltage relays are designed for mounting on standard DIN

rails that comply to DIN-EN 50022. Mounting involves hooking the

top edge of the cutout on the base of the case over one edge of the

DIN rail. The opposite side of the cutout containing the release clip

is then pushed over the opposite side of the DIN rail. To remove or

reposition the relay, lever the release clip and move the relay as

required. BE3 relays should be installed in a dry, vibration-free

location where the ambient temperature does not exceed the

operating temperature range. Connections to the relay should be

made using wire that meets applicable codes and is properly sized

for the application. Figure 1 shows the terminal connections for the

BE3-27T, BE3-59T, and BE3-27T/59T relays.

CALIBRATION

The calibration marks on the faceplate have a maximum error of

10% and are provided only as guides. Proper calibration requires

using an accurate voltmeter in parallel with the input signal. Use the

following procedure to calibrate your relay.

Overvoltage

1. Adjust the SET control fully clockwise (CW) and the DELAY

control fully counterclockwise (CCW).

2. Apply the desired trip voltage to the relay.

3. Slowly (allow for the 200 ms operating time) adjust the SET

control CCW until the relay trips.

4. Reduce the applied voltage (do not change the voltage level)

and set the DELAY control to the desired time delay.

5. Apply the trip voltage to the relay and measure the time to trip.

Publication

9319500990

Revision

Instructions

Date

04/14

2014

1 2

Instructions 1

Summary of Contents

Page 1 - Instructions

www.basler.com +1 618.654.2341 (USA) [email protected] Model BE3-27T, BE3-59T, and BE3-27T/59T INTRODUCTION BE3 ac voltage relays provide

Page 2

6. Adjust the DELAY and repeat Steps 4 and 5 until you have the desired time delay. Undervoltage 1. Adjust the SET and DELAY controls fully CCW. 2.

Basler-electric BE3-27T User Manual

Browse online or download User Manual for Relay Basler-electric BE3-27T. Basler Electric BE3-27T User Manual

Summary of Contents

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Basler-electric BE3-27T User Manual

Browse online or download User Manual for Relay Basler-electric BE3-27T. Basler Electric BE3-27T User Manual

Summary of Contents

Related models: BE3-59T | BE3-27T/59T |

More documents for Relay Basler-electric BE3-27T

Comments to this Manuals

Related products and manuals for Relay Basler-electric BE3-27T