185

Diversified Electronics

800.727.5646

atcdiversified.com

The VBA Series offers protection to SINGLE PHASE equipment that is

required to operate between two voltage limits. Supply voltage is moni-

tored for a preselected UNDER and OVER voltage limit.

With normal operating voltage applied, the internal relay will energize

(PICK-UP). When the voltage falls outside the preset Over/Under trip

points for longer than the release delay, the relay will de-energize

(DROP-OUT). When line conditions return to normal, the VBA Series

automatically resets and the internal relay energizes.

The HYSTERESIS in each unit on the Under and Over limits provides a

differential between the PICK-UP and DROP-OUT trip points.

OPERATION

WIRING

Single Phase Voltage Band Monitor

STYLE "N"

STYLE "A"

E55826

Style A only

POWER REQUIRED Models Up To 110 VDC: 3 Watts, Max.

Models Up To 300 VAC: 5 VA, Max.

OUTPUT RATING

Style A

DPDT, 5A @ 240 VAC, Resistive;

211 VA @ 240 VAC

Style N

SPDT, 10A @ 240 VAC, Resistive;

180 VA, @ 120 VAC

RESPONSE TIMES Operate

50 mSEC (approx.)

(500 mSEC on 12 VDC units)

Release

0.5 SEC (approx.)

TEMPERATURE

Operate

32° to +131°F (0° to +55°C)

RATING

Storage

-49° to 185°F (-45° to +85°C)

WEIGHT

5 oz.

SPECIFICATIONS

MODEL

NOMINAL

PICK-UP UNDER

PICK-UP OVER

HYSTERESIS

VOLTAGE

VOLTAGE

VOLTAGE

VOLTAGE

VOLTAGE

VBA-24-A*A

24 VAC

19-24

24-29

2

VBA-120-A*A

120 VAC

90-120

120-150

5

VBA-208-A*A

208 VAC

185-208

208-240

8

VBA-240-A*A

240 VAC

200-240

240-270

10

VBA-12-D*A

12 VDC

10-12

12-15

1

VBA-24-D*A

24 VDC

19-24

24-29

1

VBA-28-D*A

28 VDC

22-28

28-34

1

VBA-48-D*A

48 VDC

38-48

48-58

2

VBA-110-D*A

110 VDC

85-110

110-135

5

VBA-24-AFN

24 VAC

21.6

26.4

0

VBA-120-AFN

120 VAC

108

132

0

VBA-208-AFN

208 VAC

187

229

0

VBA-220-AFN

208/240 VAC

198

242

0

VBA-230-AFN

230 VAC

207

253

0

VBA-240-AFN

240 VAC

216

264

0

*Adjustments - F = Fixed

K = Knob

L = Locknut

RB-08 or PF083A