© 2016 Littelfuse Protection Relays & Controls

www.littelfuse.com/

Rev: 1-A-062716

Protection Relays

Voltage Monitoring Relays

www.littelfuse.com/pls

KVM SERIES

Specifications

Line Voltage

Type

Single phase

Input Voltage

110 to 120VAC or 220 to 240VAC

AC Line Frequency

50/60 Hz

Power Consumption

2.5W @ 132VAC; 4.5W @ 264VAC

Power Off Reset Time

≤ 150ms

Undervoltage Detection

Undervoltage Setpoint

KVM4

78 to 99VAC

KVM6

156 to 199VAC

Undervoltage Reset Point

KVM4

Fixed at 104VAC

KVM6

Fixed at 209VAC

Repeatability

± 0.5% under fixed conditions

±1% over temperature range

Voltage Sensing Accuracy

±2% at 25°C

Output

Type

Electromechanical relay

Form

SPDT

Rating

8A resistive @ 120VAC, 1/3 hp @ 120/240VAC

Life

Mechanical - 1 x 106; Electrical - 1x105

LED Indicator

Glows green when output is energized

Protection

Surge

IEEE C62.41-1991 Level A

Circuitry

Encapsulated

Isolation Voltage

≥ 1500V RMS input to output

Insulation Resistance

≥ 100 MΩ minimum

Mechanical

Mounting

Surface mount with one #10 (M5 x 0.8) screw

Dimensions

H 50.8 mm (2.0”); W 50.8 mm (2.0”);

D 30.7 mm (1.21”)

Termination

0.25 in. (6.35 mm) male quick connect terminals

Environmental

Operating /Storage

Temperature

-25 to 55°C / -40 to 85°C

Humidity

95% relative, non-condensing

Weight

2.6 oz (74 g)

Function Diagram

TP = Undervoltage

Setpoint

R = Reset Point