LOVATO ELECTRIC - Current monitoring relays type PMA...

CURRENT MONITORING RELAYS - TYPE PMA20..., PMA30..., PMA40...
	The current monitoring relays of the series are suitable for use in single-phase systems. All relays have auxiliary 24-240VAC/DC supply and have relay outputs. Current measurements are obtained with TRMS values.

General characteristics

Modular version
Auxiliary supply voltage: 24-240VAC/DC (50/60Hz for AC)
AC/DC input current
Direct connection or by CT
Unidirectional DC current measurement in TRMS
External digital input for inhibition or resetting
1 relay output with 1 changeover contact rated 8A 250VAC in AC1 for PMA20 240 and PMA30 240;
2 relay outputs, each with 1 changeover contact rated 8A 250VAC in AC1 for PMA40 240
Green LED indicator for power on
Red LED indicators for functions
Degree of protection: IP40 on front..

Functions	Current monitoring
Functions	PMA20 240	PMA30 240	PMA40 240
Maximum current AC/DC	●
Minimum or maximum current AC/DC		●
Minimum and maximum current AC/DC			●

Order
code

Rated
current
Ie
[A]

Auxiliary
power
supply
[V]

Functions

PMA20 240

5 - 16 multiscale

24-240VAC/DC

Maximum current AC/DC

PMA30 240

5 - 16 multiscale

24-240VAC/DC

Minimum or maximum current AC/DC

PMA40 240

0.02 - 0.05 - 0.25 -
1 - 5 - 16 multiscale

24-240VAC/DC

Minimum and maximum current AC/DC