© 2016 Littelfuse Protection Relays & Controls

www.littelfuse.com/

Rev: 1-A-062716

Protection Relays

Voltage Monitoring Relays

www.littelfuse.com/pls

PLS SERIES

Specifications

Line Voltage

Type

3-phase delta or wye with no connection

to neutral

Nominal

Minimum

Maximum

Voltage

Voltage

Voltage

120VAC

95VAC

135VAC

208/240VAC

175VAC

255VAC

380/415VAC

310VAC

430VAC

440/480VAC

380VAC

500VAC

AC Line Frequency

50/60Hz

Phase Sequence

ABC

Response Times

Pull-in

≤ 300ms

Drop-out

≤ 50ms

Output

Type

Electromechanical relay, energized when the

phase sequence is correct

Form

Isolated SPDT

Rating

120 & 240VAC

10A resistive @ 240VAC

380 & 480VAC

8A resistive @ 240VAC

Maximum Voltage

250VAC

Protection

Isolation Voltage

120 & 240VAC

≥ 1500V RMS input to output

380 & 480VAC

≥ 2500V RMS input to output

Mechanical

Mounting*

Plug-in socket

Dimensions

H 81.3 mm (3.2”); W 60.7 mm (2.39”);

D 45.2 mm (1.78”)

Termination

Octal 8-pin plug-in

Environmental

Operating/Storage

Temperature

-40°to 55°C / -40° to 85°C

Weight

≅ 6 oz (170 g)

*CAUTION: Select an octal socket rated for 600VAC operation.