HEAT DISSIPATION
  

 PROTECTION RELAYS (Voltage and Current)

 Type

Rated supply
voltage Us

[V]

Maximum dissipation
at rated supply
voltage Us
[W]

PMV20

100-240VAC

2.5

208-575VAC

2.5

PMV30

208-240VAC

2.5

380-575VAC

2.5

PMV40

208-240VAC

2.5

380-575VAC

2.5

PMV50

208-240VAC

2.5

380-575VAC

2.5

PMV60

208-240VAC

2.5

380-575VAC

2.5

PMV70

208-240VAC

2.5

380-575VAC

2.5

PMV55

208-240VAC

1.5

380-440VAC

1.5

PMA20

24-240VAC/DC

1.2

PMA21

24-240VAC/DC

1.2

PMA30

24-240VAC/DC

1.2

PMA50

220-240VAC

2.8

380-415VAC

2.8

PMF20

220-240VAC

1.5

380-415VAC

1.5

DRV3-DRV3N

100-110-127VAC

220-230-240VAC 

2.95-3.24

380-400-415VAC

3.75-3.1

440-460-480VAC

4-3.8

DRV1

 100-127VAC

1.84

 220-240VAC

1.85

 380-415VAC

2.5

 440-480VAC

2.26

DRA

100-127VAC 50/60Hz

1.40

220-240VAC 50/60Hz

1.66

380-415VAC 50/60Hz

2.23

440-480VAC 50/60Hz

2.14

ASF

220-240VAC

0.6

380-415VAC

1.6

440-480VAC

2.9

 24VAC

1.15

 48VAC

1.2

 110-127VAC

1.2

 220-240VAC

1.2

To calculate total heat dissipation, add contact dissipation to the value given above.   
The maximum specific dissipation of the relay contacts is 0.1W/A.   
The estimate of contact dissipation is to be made considering total contact current and the diversity factor if the device is equipped withmore than one output relay.