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< Marsh Bellofram Group of Companies < Diversified Electronics < Phase/Voltage Monitors < VBA Series
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VBA Series Single Phase Voltage Band Monitor
  • Single Phase Voltage Band Monitor
  • Adjustment for Voltage Trip Points (Plug in Style Only)
  • Plug in or Surface Mount Enclosures
  • Models Available up to 240 VAC
Style
A & N
Style A
Product Detail:
The VBA Series offers protection to single phase equipment that is required to operate between two voltage limits. Supply voltage is monitored 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.
Part Numbers:
Model Number
Nominal Voltage
Pick-Up Under Voltage
Pick-Up Over Voltage
Hysteresis 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
12-Oct
15-Dec
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
Options:
Consult Factory.
Purchase Details:
Product Contact:
Sales Contact
Specifications:
Output Rating Style A DPDT, 5A @ 240 VAC, Resistive; 211 VA @ 240, Inductive.
Style N SPDT, 10A @ 240 VAC, Resistive; 180 VA, Inductive.
Response Times Operate 50 mSec. (Approximately) (500 mSec. on 12 VDC units)
Release 0.5 Seconds (Approximately)
Temperature Rating Operate 32° to 131°F (0° to 55°C)
Storage -49° to 185°F
(-45° to 85°C)
Power Required Models Up To 110 VDC: 3 Watts, Maximum
Models Up To 300 VAC: 5 VA, Maximum
Weight 5 oz.