LINETRAXX® VMD258

Analogue undervoltage and overvoltage relay for monitoring three-phase AC systems (window discriminator function)

Undervoltage and overvoltage monitoring for 3 AC systems
No external supply voltage
Separate alarm relays for undervoltage and overvoltage with two potential-free changeover contacts
Adjustable response value:  0.7...0.95 x Un/1.05...1.3 x Un
Nominal system voltages: 3AC 690/500/480/440/400/230/110/100 V
Adjustable response delay: 0...5 s
LEDs für Power On, overvoltage, undervoltage

Frequency range of US 	45...66 Hz
Operating range 0.5...1.5 x US
Power consumption ≤ 10 VA
Nominal supply voltage US 3AC (V) 	690 	500 	480 	440 	400 	230 	110 	100
Power consumption with 50 Hz, 1.3 x US (VA) 	19 	15 	12 	14 	9 	16 	15 	10
Power consumption with 60 Hz, 1.3 x US (VA) 	11 	9 	8 	8 	6 	9 	9 	7

Undervoltage <U (Alarm): 0.7...0.95 x Un
Overvoltage >U (Alarm): 1.05...1.3 x Un
Relative uncertainty at the setting limits: 45...66 Hz 	± 3 %; 47.5...63 Hz 	± 2 %
Hysteresis < 3 %
Repetition accuracy ± 1 %
Operation LED ON - (green)
Alarm for <U - LED (yellow)
Alarm for >U - LED (yellow)
Number of switching elements: 2 x 2 changeover contacts
Start-up delay t: 500 ms 	± 20 %
Response delay ton1: 0...5 s 	± 10 %
Response delay ton2: 100 ms 	± 20 %

History memory (HiS) for the first alarm value data record measured values
Password protection: off/0...999 (off/0)
Connection type: Screw terminals
EMC immunity: acc. to IEC 60255-26
EMC emission: acc. to IEC 60255-25
Operating temperature: -20...+70 ｰC

Manufacturer:
Bender GmbH & Co. KG
Londorfer Straße 65
35305 Gruenberg

Type: VMD258 AC 100V
Article number: B93010060

Type: VMD258 AC 110V
Article number: B93010061

Type: VMD258 AC 230V
Article number: B93010062

Type: VMD258 AC 400V
Article number: B93010063

Type: VMD258 AC 440V
Article number: B93010064

Type: VMD258 AC 480V
Article number: B93010065

Type: VMD258 AC 500V
Article number: B93010066

Type: VMD258 AC 690V
Article number: B93010067