Voltage Band Monitor

 

• SPDT Output in Standard Relay Configuration
• Monitors Over and Under Voltage
• AC or DC Versions
• Automatic Reset

 

Description

The Model 2681 Voltage Band Monitor is a dual set-point voltage monitor. Input voltages between the upper and lower set-points will cause the output contacts to pull in (contacts 1 & 3 closed) and the LED indicator to illuminate. Input voltages above or below the set-points will cause the output contacts to drop out (contacts 1 & 4 closed) and extinguish the LED indicator.

 

The Model 2681 is available in AC or DC versions. AC models of the 2681 are not frequency sensitive and can be used on systems from 50 to 400 Hz. The voltage set-points are screwdriver adjustable over a wide operating range.

 

The SPDT output configuration is identical to the configuration of general purpose relays. This unit requires a standard 8-pin socket for mounting.

 

Specifications

2681 - AC VERSIONS
Nominal AC voltages	24vac			120vac	208vac	240vac
Max input voltage	32vac			160vac	250vac	285vac
Under voltage range	19-24vac			90-120vac	185-208vac	200-240vac
Over voltage range	24-29vac			120-150vac	208-240vac	240-270vac
Input frequency (Hz)	50 - 400 Hz
2681 - DC VERSIONS
Nominal DC Voltage	12vdc	24vdc	28vdc	48vdc	110vdc	230vdc
Max input voltage	17vdc	32vdc	37vdc	62vdc	145vdc	270vdc
Under voltage range	10-12vdc	19-24vdc	22-28vdc	38-48vdc	85-110vdc	175-230vdc
Over voltage range	12-15vdc	24-29vdc	28-34vdc	48-58vdc	110-135vdc	230-260vdc
2681 - ALL VERSIONS
Power consumption	± 2 watts max
Set-point stability	± 0.5% of set-point
Dead band	2%
Polarity protection	DC versions only
Trip response	0.5 sec fixed (± 0.1 sec)
Reset time	0.1 sec
Output contacts	SPDT
Contact rating	10A at 240vac resistive
Expected relay life	Mechanical: 10 million operations Electrical: 100,000 at rated load
Operating temp	- 20° to +122°F
Humidity tolerance	97% w/o condensation
Mounting	8-pin socket (*order separately)
Case material	ABS plastic
Weight	5 oz.

Downloads

Document	File Type	File Size	Download
Model 2681 Datasheet	PDF	246 KB

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17 Raritan Road, Oakland, NJ 07436 | 800-526-5376
Created By: G.Dezines