Carlo Gavazzi RF1A, RF1B Catalog Page
Solid State Relays
1-Phase, Zero Cross or Instant On Switching
25 AAC, 230 VAC with LED and Built-in Transil
Types RF1A, RF1B
• AC switching Solid State Relay
• Switching through back to back thyristors
• Long lifetime through reduced stress on output chip
• Operational ratings: up to 280 VAC, 25 AAC
• Control voltage: 5 VDC, 12 VDC, 24 VDC
• LED for control status indication
• Integrated overvoltage protection on output
• Opto isolation input to output 3750 VAC
• 100k cycles endurance test according to UL508
• Pre-attached thermal interface to SSR backplate
Product Description
The RF1 series provides a
compact solid state switching
solution suited for confined
spaces. Long life time is
ensured by the use of assembly technology that reduces
stresses on the power semiconductors.
The RF1 series is suitable for
resistive loads. The zero
switching type (RF1A), switches ON when the voltage crosses zero. The instant-ON type
Specifications are stated at 25˚C unless otherwise noted
(RF1B), switches on when the
control voltage is applied.
Switch OFF occurs when current crosses zero.
Integrated transils provide protection against overvoltages. A
green LED indicates presence
of the control voltage. FASTON terminals enable fast
installation. The RF1 is provided with pre-attached thermal
interface ready for mounting
on chassis or heatsink.
Ordering Key
SSR series
Number of switching poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current
Options
Ordering Key
Switching mode Rated voltage Control voltage Rated current*
RF1A: Zero Cross (ZC) 23: 230 VAC L: 5 VDC 25: 25 AAC
RF1B: Instant On (IO) (24 - 280 VAC), M: 12 VDC
50/60 Hz D: 24 VDC
RF 1 A 23 D 25 _
Selection Guide
Rated output voltage, Blocking voltage Control voltage Rated operational current*
Switching mode range
230 VAC, ZC 600 Vp 4.25 - 9.0 VDC RF1A23L25
9.0 - 18.0 VDC RF1A23M25
18.0 - 28.8 VDC RF1A23D25
230 VAC, IO 600 Vp 4.5 - 9.0 VDC RF1B23L25
11.0 - 18.0 VDC RF1B23M25
18.0 - 28.8 VDC RF1B23D25
* Max. 25 AAC with suitable heatsink. Refer to Heatsink Selection tables.
Specifications are subject to change without notice (03.11.2015) 1
RF1
4
6
8
10
12
14
16
18
20
44.555.566.577.588.59
Input
current
(mADC)
Input voltage (VDC)
RF1A23L25
RF1B23L25
4
6
8
10
12
14
89101112131415161718
Input current (mADC)
Input voltage (VDC)
RF1A23M25
RF1B23M25
4
6
8
10
12
14
18 19 20 21 22 23 24 25 26 27 28 29
Input current
(mADC)
Input voltage (VDC)
RF1A23D25
RF1B23D25
General Specifications
Latching voltage
(across L-T) ≤ 20 V
Operational frequency range 45 to 65 Hz
Leakage current
@ rated voltage < 3m AAC
Power factor > 0.9 @ rated voltage
Control input status continously ON Green LED,
when control input is applied
Output Specifications
Rated operational current*
C-51 (IEC/EN 60947-4-3, UL508)
A
25 AAC
Minimum operational current 150 mA
Rep. overload current -
L508: T=40°C, tON=1s, tOFF=9s, 50 cycles
U
40 AAC
Non-repetitive surge
current (t=10ms) 325 Ap
Max. 25 AAC with suitable heatsink. Refer to Heatsink Selection tables.
*
Output Voltage Specifications
Operational Voltage Range 24-280 VAC
Blocking voltage 600 Vp
Output protection Integrated transil
Rated impulse
withstand voltage, U
imp
4 kV (1.2/50µs) for
Overvoltage Category III
Isolation
Input to Output 3750 Vrms
Input & Output to Case 2500 Vrms
On state voltage drop < 1.3 V
I²t for fusing (t=10ms)
minimum 525 A²s
Critical dV/dt @ Tj init = 40°C 1000 V/us
Endurance testing acc. to
UL508 100,000 cycles
Input specifications
Control voltage range RF1A 4.25 - 9.0 VDC 9.0 - 18.0 VDC 18.0 - 28.8 VDC
Pick-up voltage RF1A 4.25 VDC 9.0 VDC 18.0 VDC
Drop-out voltage 1.0 VDC 1.0 VDC 1.0 VDC
Maximum Reverse voltage 9.0 VDC 18.0 VDC 28.8 VDC
Max Response time pick-up
RF1A 1/2 cycle 1/2 cycle 1/2 cycle
RF1B 1 ms 1 ms 1 ms
Response time drop-out
RF1A 1/2 cycle 1/2 cycle 1/2 cycle
RF1B 1/2 cycle 1/2 cycle 1/2 cycle
Input current refer to diagrams below
RF1..L RF1..M RF1..D
2 Specifications are subject to change without notice (03.11.2015)
RF1..L RF1..M RF1..D
RF1B 4.5 - 9.0 VDC 11.0 - 18.0 VDC 18.0 - 28.8 VDC
RF1B 4.5 VDC 11.0 VDC 18.0 VDC
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