Data Sheet
Features
15 A modular SSR, 1 NO output
• 22.5 mm housing, heat-sink + plastic cover
• 24 to 277 V AC output (with triac)
• 6 kV (1.2/50 µs) insulation between Input
and Output
• Zero-crossing and random switch-on versions
available
• High switching speed
• High endurance
• Silent switching
• Spark and bounce-free switching
• Low control power
• “Relay-style” terminal arrangement
(input and output terminals on opposite sides)
• 35 mm rail (EN 60715) mount
1 NO (SPST-NO) 1 NO (SPST-NO)
15 / 400 * 15 / 400 *
230 230
24...277 24...277
19...305 19...305
800 800
20 20
15 15
—1.2
4,000 2,500
3,000 1,500
4,000 2,500
2,000 1,000
100 100
11
1.55 1.55
14 14
— 230 — 230
24 — 24 —
0.4 7.5 / 0.9 0.4 7.5 / 0.9
— 40...305 — 40...305
4...32 — 4...32 —
— / 2 6 / — — / 2 6 / —
10·10
6
10·10
6
< 10 / <10 < 10 / < 30 < 1 / <10 < 2 / < 25
66
–20...+80 ** –20...+80 **
IP20 IP20
Zero-crossing switch-on
Suggested applications:
• Lamp inrush current reduction (CFL - Compact
Fluorescent energy-saving Lamps and similar)
• Heater control
• Solenoid, contactor driver
Random switch-on
Suggested applications:
• Fine controls involving shorter time (specially
motor control)
Output specification
Output configuration
Rated current I
N
/ Max. peak current* (10 ms) A
Rated voltage V AC (50/60 Hz)
Rated voltage range V AC (50/60 Hz)
Switching voltage range V AC (50/60 Hz)
Repetitive peak off-state voltage V
pk
Rated load AC7a (cos ϕ = 0.8, @ 25 °C ) A
Rated load AC15 A
Single phase motor rating (230 V AC) kW
230 V lamps rating: incandescent/halogen W
compact fluorescent (CFL)/Led W
electronic ballast fluorescent tubes W
electromagnetic ballast compensated fluorescent tubes W
Minimum switching current @ 250 V mA
Typical “OFF-state” leakage current @ 250 V mA
Max “ON-state” voltage drop @ 25 °C and 15 A V
Power loss @ 15 A W
Input specification
Nominal voltage (U
N
) V AC (50/60 Hz)
V DC
Rated power @ U
MAX VA (50 Hz)/W
Operating range V AC (50/60 Hz)
V DC
Must drop-out voltage V AC (50/60 Hz)/DC
Technical data
Electrical life cycles
Operate / release time ms
Insulation between input and output (1.2/50µs) kV
Ambient temperature °C
Protection category
Approvals (according to type)
77.11.x.xxx.8250 77.11.x.xxx.8251
77.11
Screw terminal
*See L77-7 diagram page 10
** See L77-6 diagrams page 9
For outline drawing see page 12
2
II-2014, www.findernet.com
Simplified circuit
diagram
Simplified circuit
diagram
77
SERIE S
77 Series - Modular Solid State Relay 15 A
D