SSM3A325F7 Solid State Relay SSR Harmony by Schneider Electric



SSM3A325F7 Solid State Relay SSR

Harmony by Schneider Electric

SSM3A325F7 Datasheet (PDF)


range of product Harmony Solid State Relays
product or component type Solid state relay up to 30 A
device short name SSM3
Number of channels 3
Number of phases 3 phases
output switching mode Zero voltage switching


mounting support Symmetrical DIN rail
[In] rated current 25 A
output voltage 48…600 V AC
[Uc] control circuit voltage 90…140 V AC
tightening torque 0.6…0.7 N.m for input
1.36…1.7 N.m for output
connections – terminals Screw terminals: 0.2…1.3 mm², (AWG 24…AWG 16) for input
Screw terminals: 1.3…5.3 mm², (AWG 16…AWG 10) for output
maximum capacitance 8 pF for input/output
insulation resistance 1000 MOhm
local signalling LED (green) for input status
switching voltage 90 V turn-on
10 V turn-off
input current 15…19 mA
solid state output type Zero voltage switching
load current 0.1…25 A
transient overvoltage 1100 V
surge current 286 A for 20 ms at 50 Hz
300 A for 16.6 ms at 60 Hz
maximum voltage drop <1.35 V on-state
motor power hp 1 hp 40 °C 240 V AC
2 hp 40 °C 380 V AC
3 hp 40 °C 480 V AC
maximum I²t for fusing 410 A².s for 10 ms at 50 Hz
374 A².s for 8.3 ms at 60 Hz
maximum leakage current 0.25 mA off-state
dV/dt 500 V/µs off-state at maximum voltage
response time 30 ms (turn-off)
20 ms (turn-on)
power factor 0.5 (with maximum load)
overvoltage category III
net weight 0.74 kg


dielectric strength 4 kV AC for input/output
4 kV AC for input or output to case
pollution degree 2
standards IEC 60950-1
UL 508
CSA C22.2 No 14
product certifications UL
marking CSA
IP degree of protection IP20
ambient air temperature for operation -20…80 °C
ambient air temperature for storage -40…100 °C



(1) Side view

(2) Top view

(3) Front view

(A) Mounting hole

(B) Mounting hole / slot

Additional information

Weight 3 lbs
Dimensions 10 × 7 × 8 in

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