© 2016 Littelfuse Protection Relays & Controls

www.littelfuse.com/

Rev: 1-A-062716

Protection Relays

Voltage Monitoring Relays

www.littelfuse.com/kvm

KVM SERIES

Description

The KVM Series is a single-phase undervoltage monitor designed

to protect sensitive equipment against brownout undervoltage

conditions. The compact design and encapsulated construction

make the KVM Series an excellent choice for OEM equipment.

Operation

The output relay is energized and the LED glows green when

the input voltage is above the reset voltage threshold. If the

input voltage drops below the undervoltage setpoint, the output

relay and LED will de-energize. The output relay will remain

de-energized as long as the input voltage is below the reset

voltage. Reset is automatic when the input voltage returns to a

normal range.

Features & Benefits

FEATURES

BENEFITS

Continuous monitoring

Low cost single-phase undervoltage

(brownout) protection

Compact design

measures 2 in.

(50.8mm) square

Perfect for OEM applications where, cost, size and

ease of installation are important

LED indication

Quick visual indication of output status

Encapsulated

Protects against shock, vibration, and humidity

Accessories

P1015-64 (AWG 14/16)

Female Quick Connect

These 0.25 in. (6.35 mm) female terminals are

constructed with an insulator barrel to provide

strain relief.

P1015-18 Quick Connect to Screw Adapter

Screw adapter terminal designed for use with

all modules with 0.25 in. (6.35 mm) male quick

connect terminals.

C103PM (AL) DIN Rail

35 mm aluminum DIN rail available in a 36 in.

(91.4 cm) length.

P1023-20 DIN Rail Adapter

Allows module to be mounted on a 35 mm DIN

type rail with two #10 screws.

Wiring Diagram

L1

N/L2

V = Voltage

L = LED

S = Undervoltage

Setpoint

NO = Normally Open

NC = Normally Closed

C = Common,Transfer

Contact

Ordering Information

MODEL

MAXIMUM LINE VOLTAGE

UNDERVOLTAGE SETPOINT

KVM4

132VAC

Adjustable, 78 to 99VAC

KVM6

264VAC

Adjustable, 156 to 199VAC

If you don’t find the part you need, call us for a custom product 800-843-8848