Specifications are subject to change without notice (09.10.2020)

1

• AC Solid State Relay

• Zero switching

• Direct copper bonding technology

• Rated operational current: 25, 50 and 90 AACrms

• Blocking voltage: Up to 1200 Vp

• Rated operational voltage: Up to 480 VACrms

• 3 input ranges: 3 to 32 VDC, 10 to 90 VAC/DC and

90 to 280 VAC/DC

• Isolation: OPTO (input-output) 4000 VACrms

Product Description

The zero switching relay with

antiparallel thyristor output is

the most widely used indus-

trial SSR due to its multiple

application possibilities. The

relay can be used for resis-

Solid State Relay

Switching mode

Rated operational voltage

Rated operational current

Control voltage

Blocking voltage

Ordering Key

Solid State Relays

tive, inductive and capacitive

loads. The zero switching re-

lay switches ON when the

sine curve just crosses zero

and switches OFF when the

current crosses zero.

Type Selection

Switching mode

Rated operational

Rated operational

Control voltage

Blocking voltage

voltage

current

A: Zero switching

24: 230 VACrms

25: 25 AACrms

D: 3 to 32 VDC

06: 650 Vp

44: 400 VACrms

50: 50 AACrms

LA: 10 to 90 VAC/DC

08: 850 Vp

48: 480 VACrms

90: 90 AACrms

HA: 90 to 280 VAC/DC

12: 1200 Vp

Selection Guide

Rated opera-

Blocking

Control voltage

Rated operational current

tional voltage voltage

25 AACrms

50 AACrms

90 AACrms

3 to 32 VDC

RA 2425 -D 06

RA 2450 -D 06

RA 2490 -D 06

230 VACrms

650 Vp

10 to 90 VAC/DC

RA 2425 LA 06

RA 2450 LA 06

RA 2490 LA 06

90 to 280 VAC/DC

RA 2425 HA 06

RA 2450 HA 06

RA 2490 HA 06

3 to 32 VDC

RA 4425 -D 08

RA 4450 -D 08

RA 4490 -D 08

400 VACrms

850 Vp

10 to 90 VAC/DC

RA 4425 LA 08

RA 4450 LA 08

RA 4490 LA 08

90 to 280 VAC/DC

RA 4425 HA 08

RA 4450 HA 08

RA 4490 HA 08

3 to 32 VDC

RA 4825 -D 12

RA 4850 -D 12

RA 4890 -D 12

480 VACrms

1200 Vp

10 to 90 VAC/DC

RA 4825 LA 12

RA 4850 LA 12

RA 4890 LA 12

90 to 280 VAC/DC

RA 4825 HA 12

RA 4850 HA 12

RA 4890 HA 12

Industrial, 1-Phase ZS, Standard Range

Types RA 24.. .. 06/RA 44.. .. 08/RA 48.. .. 12

RA 24 25 LA 06