Carlo Gavazzi RM1A-B Data sheet

Solid State Relays
Low Voltage AC/DC Control: 5 to 24 V
Types RM 23M, RM 40M, RM 48M, RM 60M

• Zero switching AC Solid State Relay

• Low voltage AC/DC control: 5 to 24 V

• Direct copper bonding (DCB) technology

• LED indication

• Built-in varistor

• Clip-on IP 20 protection cover

• Self-lifting terminals

• Housing free of moulding mass

• Operational ratings: Up to 100AACrms and
600VACrms

• Opto-isolation: > 4000VACrms

Product De scrip tion

The industrial, 1-phase relay
with antiparallel thyristor out­put is the most widely used
SSR due to its multiple appli­cation possibilities. This relay
has been designed to inter­face low voltage AC or DC
control systems with high
voltage resistive, inductive
and capacitive loads. The
zero switching relay switches
ON when the sinusoidal curve

crosses zero and switches
OFF when the current cross­es zero. The built-in varistor
secures transient protection
for the heavy industrial appli­cations, and the LED indi­cates the status of the con­trol input. The clip-on cover
is securing touch safety to
IP 20. Protected output ter­minals can take cables up to
16 mm2.

Ordering Key

Solid State Relay
Number of poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current

RM 1 A 23 M 25

Type Selection

Switching mode Rated operational Control voltage Rated operational
voltage current

A: Zero Switching 23: 230VACrms M: 5 to 24VDC/AC 25: 25AACrms
40: 400VACrms 50: 50AACrms
48: 480VACrms 75: 75AACrms
60: 600VACrms 100: 100AACrms

Selection Guide

Rated opera- Blocking Control Rated op er a tion al current
tional voltage voltage voltage 25 AACrms 50 AACrms 75 AACrms 100 AACrms

230VACrms 650Vp 5 to 24VDC/AC RM1A23M25 RM1A23M50 RM1A23M75 RM1A23M100

400VACrms 850Vp 5 to 24VDC/AC RM1A40M25 RM1A40M50 RM1A40M75 RM1A40M100

480VACrms 1200Vp 5 to 24VDC/AC RM1A48M25 RM1A48M50 RM1A48M75 RM1A48M100

600VACrms 1400Vp 5 to 24VDC/AC RM1A60M25 RM1A60M50 RM1A60M75 RM1A60M100

General Spec i fi ca tions

RM1A23M RM1A40M RM1A48M RM1A60M

Operational voltage range 24 to 265VACrms 42 to 440VACrms 42 to 530VACrms 42 to 660VACrms
Blocking voltage ≥ 650Vp ≥ 850Vp ≥ 1200Vp ≥ 1400V
Zero voltage turn-on ≤ 15V ≤ 15V ≤ 15V ≤ 15V
Operational frequency range 45 to 65Hz 45 to 65Hz 45 to 65Hz 45 to 65Hz
Power factor
Approvals UL, CSA, EAC UL, CSA, EAC UL, CSA, EAC UL, CSA, EAC
CE-marking Yes Yes Yes Yes *

* Heatsink must be connected to ground.

> 0.5 @ 230VACrms > 0.5 @ 400VACrms > 0.5 @ 480VACrms > 0.5 @ 600VACrms

1 Specifications are subject to change without notice (26.07.2017)

p

RM23M, RM40M, RM48M, RM60M

Input Specifications

Absolute max. input voltage 37VDC
28VAC

Pick-up voltage 4.0VDC

4.0VAC
Drop out voltage 2.0VDC

2.0VAC
Input current

@ 5 VAC ≤ 10mA
@ 24 VAC ≤ 18mA
@ 5 VDC ≤ 9mA
@ 24 VDC ≤ 12mA

Response time pick-up ≤ 1 cycle
Response time drop-out

≤ 2.5 cycles

Isolation

Rated isolation voltage ≥ 4000VACrms
Input to output

Rated isolation voltage ≥ 4000VACrms
Output to case

Housing Specifications

Weight
25 A, 50 A Approx. 60g
75 A, 100 A Approx. 100g

Housing material Noryl GFN 1, black
Baseplate

25 A, 50 A Aluminium
75 A, 100 A Copper, nickel-plated

Potting compound None
Relay

Mounting screws M5
Mounting torque 1.5-2.0Nm

Control terminal
Mounting screws M3 x 9
Mounting torque 0.5Nm

Power terminal
Mounting screws M5 x 9
Mounting torque 2.4Nm

Thermal Specifications

RM1...M25 RM1...M50 RM1.60M50 RM1...M75 RM1...M100

Operating temperature range -20° to 70°C -20° to 70°C -20° to 70°C -20° to 70°C -20° to 70°C
Storage temperature range -40° to 100°C -40° to 100°C -40° to 100°C -40° to 100°C -40° to 100°C
Junction temperature ≤ 125°C ≤ 125°C ≤ 125°C ≤ 125°C ≤ 125°C
Rth junction to case ≤ 0.80K/W ≤ 0.50K/W ≤ 0.72K/W ≤ 0.35K/W ≤ 0.30K/W
Rth junction to ambient ≤ 20.0K/W ≤ 20.0K/W ≤ 20.0K/W ≤ 20.0K/W ≤ 20.0K/W

Output Specifications

RM1A..M25 RM1A..M50 RM1A..M75 RM1A..M100

Rated operational current

AC51 @ Ta=25°C 25Arms 50Arms 75Arms 100Arms
AC53a @ Ta=25°C 5Arms 15Arms 20Arms 30Arms

Min. operational current 150mA 250mA 400mA 500mA
Rep. overload current t=1 s < 55AACrms < 125AACrms < 150AACrms < 200AACrms
Non-rep. surge current t=10ms 325Ap 600Ap 1150Ap 1900Ap
Off-state leakage current @

rated voltage and frequency < 3mArms < 3mArms < 3mArms < 3mArms
I2t for fusing t=10ms < 525A2s < 1800A2s < 6600A2s < 18000A2s
On-state voltage drop @ rated current 1.6Vrms 1.6Vrms 1.6Vrms 1.6Vrms
Critical dV/dt off-state min. 500V/µs 500V/µs 500V/µs 500V/µs
Zero crossing detection Yes Yes Yes Yes

Specifications are subject to change without notice (26.07.2017) 2