Slim Integrated Solid State Relay | Din Rail Mount SSR 10A-120A with Heat Sink

DIN Rail Mount Solid State Relay is a slim integrated SSR with built-in heat sink, designed for compact industrial control cabinets and DIN rail installation. It supports high-efficiency switching for AC load control, with current options from 10A to 120A. The integrated heat sink improves thermal management, while the slim structure helps save panel space. It is widely used in heating control, temperature control systems, motor drives, power supplies, automation equipment, and industrial switch

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Main Features Technical Specifications Applications Application Guidelines FAQ Dimensions (mm)

Modular, compact form factor with integrated aluminum heat sink for efficient heat dissipation
Wide load voltage compatibility: 24–480VAC for AC loads, 5–220VDC for DC loads
Control voltage ranges: 3–32VDC (DA and DD types), 70–280VAC (AA type)
Low on-state voltage drop ≤1.5V, minimizing conduction losses and improving energy efficiency
Rapid switching with response time ≤10ms for precise control
Low off-state leakage current ≤2mA, ensuring safe operation
High insulation resistance ≥1000MΩ, ensuring electrical isolation
Robust dielectric strength rated at 2500VAC between input and output
Operating ambient temperature range: -30°C to +75°C for reliable performance in harsh environments
Secure DIN rail mounting with screw fasteners for vibration resistance and ease of installation
Status indicator LED for real-time switching state monitoring

Parameter	DA Type (DC Control, AC Load)	AA Type (AC Control, AC Load)	DD Type (DC Control, DC Load)
Rated Load Current (A)	10, 25, 40, 60, 80, 100, 120	10, 25, 40, 60, 80, 100, 120	10, 25, 40, 60, 80, 100
Rated Load Voltage (VAC/VDC)	24–480VAC	24–480VAC	5–220VDC
Control Voltage Range	3–32VDC	70–280VAC	3–32VDC
Control Current Range (mA)	3–25	3–25	3–25
Maximum On-state Voltage Drop (V)	≤1.5	≤1.5	≤1.5
Maximum Off-state Leakage Current (mA)	≤2	≤2	≤2
Switching Time (ms)	≤10	≤10	≤10
Dielectric Strength (VAC)	2500	2500	2500
Insulation Resistance (MΩ)	≥1000	≥1000	≥1000
Ambient Operating Temperature (°C)	-30 to +75	-30 to +75	-30 to +75
Mounting Method	DIN rail, screw-fastened	DIN rail, screw-fastened	DIN rail, screw-fastened
Weight (g)	179/257/267 (per current rating)	Same as DA type	Same as DA type

Industrial heating elements control
Motor control and speed regulation
Lighting systems switching
HVAC system automation
Process control and machinery automation

For load currents of 10A and above, adequate thermal management with heat sinks is mandatory.
For currents exceeding 40A, forced cooling via fans or liquid cooling is strongly recommended to maintain optimal device performance and longevity.
When switching inductive loads, it is essential to install a suitable varistor or snubber circuit at the output terminals to suppress voltage transients. The varistor voltage rating should be approximately 1.6 to 1.9 times the load voltage.

Q1: What types of loads are supported by Din Rail SSRs?
A1: These SSRs support both resistive and inductive loads, with DA and AA types controlling AC loads and DD types controlling DC loads within their rated specifications.

Q2: How is the SSR installed?
A2: The SSR is designed for standard DIN rail mounting with screw fixation to ensure secure installation and efficient heat dissipation.

Q3: What are the required control voltage ranges?
A3: Control voltage depends on the model: 3–32VDC for DA and DD types; 70–280VAC for AA type.

Q4: What measures should be taken for high load currents?
A4: Proper heat dissipation is critical. Use appropriate heat sinks for currents ≥10A and forced cooling methods for currents ≥40A.

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Main Features

Modular, compact form factor with integrated aluminum heat sink for efficient heat dissipation
Wide load voltage compatibility: 24–480VAC for AC loads, 5–220VDC for DC loads
Control voltage ranges: 3–32VDC (DA and DD types), 70–280VAC (AA type)
Low on-state voltage drop ≤1.5V, minimizing conduction losses and improving energy efficiency
Rapid switching with response time ≤10ms for precise control
Low off-state leakage current ≤2mA, ensuring safe operation
High insulation resistance ≥1000MΩ, ensuring electrical isolation
Robust dielectric strength rated at 2500VAC between input and output
Operating ambient temperature range: -30°C to +75°C for reliable performance in harsh environments
Secure DIN rail mounting with screw fasteners for vibration resistance and ease of installation
Status indicator LED for real-time switching state monitoring

Technical Specifications

Parameter	DA Type (DC Control, AC Load)	AA Type (AC Control, AC Load)	DD Type (DC Control, DC Load)
Rated Load Current (A)	10, 25, 40, 60, 80, 100, 120	10, 25, 40, 60, 80, 100, 120	10, 25, 40, 60, 80, 100
Rated Load Voltage (VAC/VDC)	24–480VAC	24–480VAC	5–220VDC
Control Voltage Range	3–32VDC	70–280VAC	3–32VDC
Control Current Range (mA)	3–25	3–25	3–25
Maximum On-state Voltage Drop (V)	≤1.5	≤1.5	≤1.5
Maximum Off-state Leakage Current (mA)	≤2	≤2	≤2
Switching Time (ms)	≤10	≤10	≤10
Dielectric Strength (VAC)	2500	2500	2500
Insulation Resistance (MΩ)	≥1000	≥1000	≥1000
Ambient Operating Temperature (°C)	-30 to +75	-30 to +75	-30 to +75
Mounting Method	DIN rail, screw-fastened	DIN rail, screw-fastened	DIN rail, screw-fastened
Weight (g)	179/257/267 (per current rating)	Same as DA type	Same as DA type

Applications

Industrial heating elements control
Motor control and speed regulation
Lighting systems switching
HVAC system automation
Process control and machinery automation

Application Guidelines

For load currents of 10A and above, adequate thermal management with heat sinks is mandatory.
For currents exceeding 40A, forced cooling via fans or liquid cooling is strongly recommended to maintain optimal device performance and longevity.
When switching inductive loads, it is essential to install a suitable varistor or snubber circuit at the output terminals to suppress voltage transients. The varistor voltage rating should be approximately 1.6 to 1.9 times the load voltage.

FAQ

Q2: How is the SSR installed?
A2: The SSR is designed for standard DIN rail mounting with screw fixation to ensure secure installation and efficient heat dissipation.

Q3: What are the required control voltage ranges?
A3: Control voltage depends on the model: 3–32VDC for DA and DD types; 70–280VAC for AA type.

Dimensions (mm)