CTH | Industrial controls

Description

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SSM solid state relays are compact designed relays with greater power density. The modular IP 20 housing design and built-in heat sink offers optimized operating solutions.

The SSM relay range comprises:
- SSM1: Single phase SSR relays with 20, 30, 45 and 55 A ratings
SSM1 relays, 22.5 mm/0.886 in. (20 A, 30 A) width and 45 mm/1.771 in. (45 A, 55 A) width
- Lugs for panel mounting
- Built-in heat sink for heat dissipation
- Control input connection terminals
- Control input voltage LED indicator in green
- Bracket for mounting on 35 mm/1.378 in. DIN rail
- Load output connection terminals

Mechanical Details
Cut-out dimensions
Features
Absolute Maximum Voltage	1200 V (30A, 45A and 55A units)
Ambient Air Temperature for Operation	-40…80 °C
Ambient Air Temperature for Storage	-40…125 °C
Capacitance Unbalance	<= 8 pF for input/output
Connections – Terminals	Screw terminals 1 x 0.2…1 x 8.4 mm² (AWG 24…AWG 8) for output Screw terminals 1 x 0.2…1 x 3.3 mm² (AWG 24…AWG 12) for input
Contacts Type and Contacts Type and Composition	1 NO
Control Circuit Voltage	4 to 32 VDC or 90 to 140 VAC
Depth	98 or 107 mm
Dielectric Strength	4 kV AC for input or output to case 4 kV AC for input/output
DV/Dt	500 V/μs off-state at maximum voltage
Height	99 mm
Input Current Limits	14…17 mA
Insulation Resistance	1000 MOhm at 500 V DC
IP Degree of Protection	IP20
Leakage Current	<= 1 mA off-state
Local Signaling	LED green for input status
Maximum I²t for Fusing	4150 A².s for 8.3 ms
Mounting Support	Symmetrical DIN rail
Output Voltage	48 to 600 VAC
Overvoltage Category	III
Pollution Degree	2
Product Certifications	CSA UL REACH Marking CE
Product Weight	0.476 or 0.28 kg
Response Time	0.5 cycle turn-off 0.5 cycle turn-on
Solid State Output Type	Zero voltage switching SCR output
Standards	IEC 61000
Surge Current	1000 A for 8.3 ms
Tightening Torque	1.1…1.7 N.m for output 0.6…0.7 N.m for input
Voltage Drop	1.7 V on-state
Width	22.5 or 45 mm
[In] Rated Current	20 to 55 A