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- Marsh Bellofram Diversified Electronics Division VBA Series Single Phase Voltage Band Monitor
Marsh Bellofram Diversified Electronics Division VBA Series Single Phase Voltage Band Monitor
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Marsh Bellofram Diversified Electronics Division VBA Series Single Phase Voltage Band Monitor
1 /1Page
Catalog excerpts
800.727.5646 atcdiversified.com Diversified Electronics VBA Series Phase Voltage Monitors // VBA Series 229 Singl e P ha s e Vo l t a g e B a n d M o n i t or 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. Style A Only 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 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 Style N Style A RB-08 or PF083A \\\OPERATION \\\SPECIFICATIONS 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, Inductive. Style N SPDT, 10A @ 240 VAC, Resistive; 180 VA, Inductive. RESPONSE TIMES Operate 50 mSEC (approx.) (500 mSEC on 12 VDC units) Release 0.5 SEC (approx.) TEMPERATURE RATING Operate 32° to +131°F (0° to +55°C) Storage -49° to 185°F (-45° to +85°C) WEIGHT 5 oz. \\\WIRING
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