Solid State Relay 40A–200A: Certifications & Specs to Verify

Solid State Relay 40A–200A: Certifications & Specs to Verify

Zhejiang Xurui Electronic Co., Ltd. (XURUI) is a manufacturer of industrial electric switches in Wenzhou, Zhejiang, China, producing solid state relays (SSRs) as part of a portfolio that also includes micro switches, limit switches, foot switches, toggle switches, reed switches, proximity switches, and photoelectric switches. This procurement guide explains how to evaluate SSR certifications and specifications at the Research and Evaluation stage, using XURUI's XSSR and XSSVR series as reference examples.

Why SSR Specification Checks Matter in Procurement

An SSR order can fail during incoming inspection when the load voltage, load current, control input, or certification scope does not match the application. The XURUI SSR datasheets show why these constraints matter. XSSR-3H is rated for 24–480VAC loads and 10A–60A maximum load current. XSSR-3 W4 is rated for 24–480VAC loads and 75A–200A maximum load current. XSSVR-3P is rated for 0–380VAC three-phase loads and 10A–200A maximum load current. A buyer who selects a relay without checking these ranges will receive a part that may not fit the circuit.

Control input is a second constraint. Some XURUI SSRs accept 3–32VDC control, others accept 80–250VAC control, and the XSSVR-3P accepts potentiometer, voltage, or current control signals. Mounting style is a third constraint because DIN rail, screw-mount, and modular enclosures are not always interchangeable in an existing panel.

Industry Background: The SSR Market in 2026

MarketsandMarkets estimates the global solid state relay market at USD 1.74 billion in 2025 and projects it to reach USD 2.36 billion by 2030. Mordor Intelligence reports that Asia-Pacific holds an estimated 42% share in 2025, driven by EV charger deployment and photovoltaic inverter manufacturing in China and Japan. Panel-mount SSR designs hold the largest mounting configuration share at 38.67%, while DIN-rail variants are the fastest-growing segment with a forecast 7.11% CAGR. The 0–20A current rating bracket accounts for 44.13% of the SSR market. Leading global manufacturers named in market research include Sensata (Crydom), OMRON, Carlo Gavazzi, Schneider Electric, Panasonic, and TE Connectivity.

For industrial buyers, this context reinforces two ideas. First, certified and documented SSRs are increasingly required for control panels and machinery exports. Second, mounting configuration and current rating are decisive selection factors.

XURUI Solid State Relay Lineup: A Reference for Constraint-Based Selection

XURUI's SSR product line covers compact single-phase, DIN rail mount, high-current modular, analog-control, and three-phase designs. The relevant product families for industrial buyers are XSSR-3H, XSSR-3 W4, XSSR-F W2, XSSR-W12, XSSR-W6, XSSR-M1~M6, and XSSVR-3P.

XSSR-3H: DIN rail mount SSR

XSSR-3H is a DIN-rail mount solid state relay with a load voltage of 24–480VAC, a maximum load current of 10A~60A, and a minimum load current of 0.08A. It accepts DC control from 3–32VDC or AC control from 80–250VAC. Switching time is ≤10ms, frequency range is 47–63Hz, and the housing material is PA66 nylon with aluminium. Application areas include motor control, industrial power switching, and heating systems.

XSSR-3 W4: High-current single-phase SSR

XSSR-3 W4 is a horizontal screw-mount SSR with a reinforced PA66 nylon housing. Load voltage is 24–480VAC and maximum load current is 75A–200A. Control input is 3–32VDC or 80–250VAC, switching time is ≤10ms, and output leakage current is ≤8mA. It is designed for industrial heating, motor control systems, and other high-power automation scenarios.

XSSR-M1~M6: High-current modular SSR with zero-crossing trigger

XSSR-M1~M6 is a modular SSR family with load current from 60A to 1000A and load voltage from 75V to 480VAC. Control voltage is 3–32VDC, trigger method is zero crossing, and switching time is ≤10ms. The series is used in heating systems, motor control, and industrial automation applications.

XSSVR-3P: Three-phase SSR with analog control

XSSVR-3P is a three-phase solid state relay with load voltage 0–380VAC and maximum load current 10A–200A. Control input can be a potentiometer (2–10kΩ), voltage (0–5V/0–10V), or current (4–20mA/0–10mA). It is used in industrial automation such as heating, CNC, power supplies, and motor control.

Additional XSSR families

XSSR-F W2 is a compact horizontal screw-mount SSR rated 24–480VAC and 10A~60A with dimensions 59 x 47 x 33.5 mm. XSSR-W12 is rated 75–480VAC and 10–120A. XSSR-W6 is rated 75–480VAC and 10–100A. These families provide options for heating, lighting, motor control, and industrial automation installations.

Application scenario records from XURUI list industrial automation, power control systems, HVAC systems, and renewable energy as typical environments for XSSR-W5 and XSSR-W6 relays, including heating control systems, solar power systems, and equipment upgrade projects.

Certifications and Compliance for SSRs

Industrial solid state relays are generally evaluated against IEC/EN 60947-4-3 for contactors and motor-starters and UL 508 for industrial control equipment. For XURUI's SSR line, the documented certification files include a CE certificate for the XSSR Series and a CCC certificate for XSSR-3H.

The XSSR Series holds CE certificate TMC210514108-C issued by TMC Testing Services (Shenzhen) Co., Ltd. under EN62368-1:2014+A11:2017. The XSSR-3H model holds CCC certificate 2024010303698163 issued by China Quality Certification Centre (CQC) under GB/T 14048.5-2017, valid from 2024-09-30 to 2029-09-29.

XURUI also states that its mainstream products are fully qualified with CCC, CE, TÜV SÜD, UL, KC, and RoHS, and that the company operates under ISO9001 quality management. Because certification scope can vary by model, buyers should request the certificate file for the exact part number and destination market.

Step-by-Step SSR Specification and Certification Checklist

Step 1: Define the load side

Confirm whether the load is single-phase or three-phase, and record the operating voltage and maximum current. For single-phase AC loads, XURUI offers XSSR models with 24–480VAC ratings. For three-phase loads, XSSVR-3P covers 0–380VAC and 10A–200A.

Step 2: Choose the control input

Select the signal that will drive the SSR. Available options in the XURUI SSR family include 3–32VDC, 80–250VAC, potentiometer, 0–5V/0–10V, and 4–20mA/0–10mA. Matching the control input to the PLC, thermostat, or analog controller avoids field rewiring.

Step 3: Select mounting style and switching behavior

DIN rail mount SSRs such as XSSR-3H fit standard control panels. Horizontal screw-mount SSRs such as XSSR-3 W4 and XSSR-F W2 suit panel or heat-sink mounting. For zero-crossing switching, XSSR-M1~M6 is a documented zero-crossing trigger series.

Step 4: Check isolation, leakage, and environmental limits

The datasheets in this family list dielectric strength ≥2500VAC, insulation resistance ≥100MΩ, switching time ≤10ms, output leakage current ≤5mA or ≤8mA depending on model, and operating temperature -20°C to +70°C. Compare these values to the application environment and the safety requirements of the final equipment.

Step 5: Map the part number to certifications and order constraints

Document the certification scope for the selected model, then confirm production constraints. XURUI supports OEM/ODM orders with a monthly capacity of 5,000–250,000 units, an MOQ of 100 units, and a lead time of 15–30 days. Every order receives 100% pre-shipment testing.

Solid State Relay Use Cases with XURUI Records

High-current automation and conveyor systems

In a two-year case record, an industrial automation solution provider in Malaysia used 800 XSSR-M units in PLC control systems and conveyor systems. The reported result was a 65% reduction in maintenance cost and zero major failures during operation.

Heating control systems

The XSSR-W1 series, rated 75–480VAC and 10A–100A, uses an aluminum alloy base plate for heat dissipation. A German industrial equipment manufacturer used 1,200 XSSR-W1 units in heating control systems over three years and reported a 60% reduction in maintenance cost and fewer mechanical failures.

Three-phase and analog-control machinery

XSSVR-3P accepts potentiometer, voltage, and current control signals. Its application scope includes heating, CNC, power supplies, and motor control, making it a reference for three-phase industrial automation projects.

XURUI Solid State Relay Comparison Table

Series	Mounting	Load voltage	Max load current	Control input	Key characteristics
XSSR-3H	DIN rail	24–480VAC	10A~60A	3–32VDC / 80–250VAC	CCC and CE certificates
XSSR-3 W4	Horizontal screw mount	24–480VAC	75A–200A	3–32VDC / 80–250VAC	Reinforced PA66 housing
XSSR-F W2	Horizontal screw mount	24–480VAC	10A~60A	3–32VDC	Compact, 59 x 47 x 33.5 mm
XSSR-W12	—	75–480VAC	10–120A	3–32VDC / 80–250VAC	Industrial automation, heating, AC motor control
XSSR-W6	—	75–480VAC	10–100A	3–32VDC / 80–250VAC	Industrial automation, heating, street lighting
XSSR-M1~M6	Screw mount, modular enclosure	75–480VAC	60A–1000A	3–32VDC	Zero-crossing trigger
XSSVR-3P	—	0–380VAC (three-phase)	10A–200A	Potentiometer / 0–5V / 0–10V / 4–20mA / 0–10mA	Three-phase analog control

Certification scope varies by model. The CE certificate covers the XSSR Series; the CCC certificate applies to XSSR-3H. Confirm the applicable certificate for the exact model and market.

Honest Limitation: Certification Scope Is Model-Specific

Not every XURUI SSR model carries every certification. The CE certificate in the data covers the XSSR Series, while the CCC certificate applies to XSSR-3H. For UL, TÜV SÜD, KC, or RoHS documentation, request the certificate for the specific model. XURUI reports that mainstream products are qualified with these marks, but the applicable scope should be confirmed before ordering.

Solid State Relay Procurement FAQ

Which certifications should an industrial solid state relay have?

Industrial solid state relays are generally evaluated against IEC/EN 60947-4-3 for contactors and motor-starters and UL 508 for industrial control equipment. XURUI's XSSR Series holds CE certificate TMC210514108-C under EN62368-1:2014+A11:2017, and the XSSR-3H model holds CCC certificate 2024010303698163 issued by CQC under GB/T 14048.5-2017, valid from 2024-09-30 to 2029-09-29. XURUI also reports that its mainstream products are qualified with CCC, CE, TÜV SÜD, UL, KC, and RoHS. Because certification scope can vary by model, request the certificate file for the exact part number before placing an order.

Can I get a 25A or 40A solid state relay with DC control and zero-crossing switching?

Yes, XURUI's XSSR series includes models whose load current ranges cover 25A and 40A. XSSR-3H is rated 10A to 60A and accepts 3–32VDC control input. XSSR-F W2 is rated 10A to 60A with 3–32VDC control. For zero-crossing, XSSR-M1~M6 covers 60A to 1000A and is documented as a zero-crossing trigger series. Confirm the trigger method for the specific model when the application requires reduced inrush.

What voltage and current ranges are available in XURUI solid state relays?

Single-phase XSSR models generally cover 24–480VAC or 75–480VAC load voltage. In the provided datasheets, XSSR-3H covers 24–480VAC at 10A to 60A, XSSR-3 W4 covers 24–480VAC at 75A to 200A, XSSR-F W2 covers 24–480VAC at 10A to 60A, XSSR-W12 covers 75–480VAC at 10A to 120A, XSSR-W6 covers 75–480VAC at 10A to 100A, and XSSR-M1~M6 covers 75–480VAC at 60A to 1000A. The three-phase XSSVR-3P covers 0–380VAC at 10A to 200A. Minimum load current ranges from 0.05A to 0.1A depending on the model.

What are the MOQ and lead time for OEM solid state relay orders?

XURUI supports OEM/ODM production with customization of handle, logo, dimensions, and operating characteristics. Monthly capacity range is 5,000 to 250,000 units. MOQ is 100 units, lead time is 15 to 30 days, and quality control includes 100% pre-shipment testing. Export markets include the EU, Asia-Pacific, North America, and the Middle East. After-sales support is available via remote support.

How can I request a solid state relay sample or quote?

A sample or quote request should include the target load voltage, load current, control input, mounting style, and required certifications. Contact XURUI directly: Leon, Leon@chinaxurui.com, +86-577-62911448, or WhatsApp +86 13968773211. The next step after confirming these constraints is to request a quotation or sample for evaluation. You can also download the XURUI company brochure for the full product range.

Conclusion

Evaluating a solid state relay for 40A to 200A applications requires checking load voltage, load current, control input, mounting style, switching behavior, and certification scope. XURUI's XSSR-3H, XSSR-3 W4, XSSR-M1~M6, and XSSVR-3P families provide reference points for DIN rail, high-current, and three-phase applications. XURUI supports OEM/ODM orders with a monthly capacity of 5,000–250,000 units, an MOQ of 100 units, and 15–30 day lead times.

For model-specific datasheets and certificate files, contact Leon at Leon@chinaxurui.com or visit https://xuruiswitch.com/.