176

Diversified Electronics

800.727.5646

atcdiversified.com

The PBC Series offers protection to three-phase equipment that is

required to operate between two voltage limits. All three phases are

monitored individually for a pre-selected UNDER and OVER VOLTAGE

limit.

With normal operating voltages applied, the internal relay will energize

(PICK-UP). When the voltages on any or all phases fall outside the pre-

set Over/Under trip points for longer than the Release delay, the relay

will de-energize (DROP-OUT). When line conditions return to normal, the

PBC Series Monitor automatically resets and the internal relay energizes.

The LED fault indicators aid in set up and system trouble-shooting glow-

ing on fault condition. The LED indicators have an immediate response

to voltage conditions and operate independently of the relay.

The HYSTERESIS in each unit provides a differential of 4% between the

PICK-UP and DROP-OUT trip points.

The PBC Series is UL Listed under UL File Number E55826.

OPERATION

SPECIFICATIONS

OUTPUT RATING

DPDT, 10Amps @ 240 VAC, Resistive;

360 VA @ 600 VAC, Inductive; 1/2 hp

POWER REQUIRED Models Up to 300 VAC

7 VA, Max

Models Over 300 VAC

6 VA, Max

RESET

Automatic

HYSTERESIS

4%

REPEAT ACCURACY 0.1% @ Fixed Condition

INDICATORS LED

Glows On Fault; (1) For Over, (1) For Under

RESPONSE TIMES

Operate

100 mSEC

Release

0.5 SEC

TEMPERATURE

Operate

32° to +131°F (0° to +55°C)

RATING

Storage

-49° to 185°F (-45° to +85°C)

WEIGHT

20 oz.

MODEL

MAXIMUM

ADJUSTABLE RANGES

NUMBER

VOLTAGE

UNDER

OVER

PBC-120-ALE

155 VAC

90-120

120-150

PBC-230-ALE

275 VAC

185-240

208-265

PBC-400-ALE

485 VAC

325-385

415-475

PBC-440-ALE

550 VAC

390-480

440-540

PBC-480-ALE

570 VAC

400-490

460-560

PBC-575-ALE

700 VAC

500-610

540-690

All voltages referenced on this page are phase-to-phase,

unless otherwise indicated.

MODEL

MAXIMUM

ADJUSTABLE RANGES

NUMBER

VOLTAGE

(Phases to Neutral)

UNDER

OVER

PBC-120/208-ALE 268 VAC

90-120

120-150

PBC-220/380-ALE 450 VAC

185-220

220-255

PBC-277/480-ALE 565 VAC

235-277

277-320

All voltages referenced on this page are phase-to-phase, unless

otherwise indicated.

DELTA CONNECTED

WYE CONNECTED

3-Phase Voltage Band Monitor

DIMENSIONS (INCHES)

IND. CONT. EQ

496Y

WIRING