New Energy 40A/50A Relay YX209E

Switching Timing & Endurance

• Operate time: 15 ms maximum at nominal coil voltage, measured from the coil being energised to the contacts closing, so allow for it where a sequence depends on the load being live.
• Release time: 10 ms maximum without a diode across the coil. Add suppression and the release behaves differently, so check the timing on the bench before freezing a control sequence.
• Mechanical endurance: 1 × 10⁷ operations. In an industrial relay that cycles all day under light load, the actuator is rarely the part that wears out first.
• Electrical endurance: 1 × 10⁵ operations at rated load. Use this figure to set inspection and replacement intervals on a high current relay that switches continuously.

Sealed & Open Construction

Both constructions are available on this relay. The sealed type encloses the contact chamber, keeping dust, moisture and flux residue away from the contacts, which is the usual pick for humid rooms, dusty plant areas and boards that pass through a washing stage. The open type leaves the contact set exposed, so it suits clean, dry cabinets where contacts can be inspected and heat has an easier path out. Tell us where the relay will operate and we will confirm which construction fits; the two are supplied as separate order options, so specify yours alongside the model, coil and contact form. Every unit is assembled and tested at our own plant, so you are buying from a relay manufacturer rather than through a reseller.

Applications

• Industrial panels and machine controls: switching contactor coils, solenoid valves, small pumps and heaters from a PLC output, using an industrial relay that mounts on the control board instead of the backplate.
• Home appliance control boards: carrying heating elements, fans and pump motors in cooking, laundry and refrigeration designs where the relay shares the board with the controller.
• Smart home and building equipment: switching lighting, ventilation and heating loads from a wall controller, gateway or thermostat board.
• New energy equipment: DC control and auxiliary circuits, including battery management and charging boards, where a mains-capable contact set is not required.
• Board-level builds: assemblies where a PCB relay soldered directly to the board removes a wiring loom and a DIN-rail component.

Scale & Supply Capability

YongNeng is a relay manufacturer supplying signal relays, latching relays and high-power relays, together with a high-voltage DC contactor line that runs from 16A up to 400A. Because our range covers everything from light switching duty to heavy DC loads, buyers can consolidate several switching positions with one supplier instead of sourcing each rating separately. Power relays are offered in sealed and open construction, and contact wiring is arranged for straightforward installation. Tell us the current rating, switching duty and mounting space your project needs, and we will help you match the right relay or contactor to your build.

OUTLINE DIMENSIONS,WIRING DIAGRAM AND PCB LAYOUT (Unit: mm)

Outline Dimensions	PCB Layout (Bottom View)	Wiring Diagram( Bottom View)

Remark ：
1 Unmarked dimensional tolerance .  
≤1mm: ±0 2mm ;（1 ~5 ）mm: ±0 3mm ; ≥5mm: ±0 4mm
2 . The tolerance of PCB layout is always: ±0.1mm.
3.Extended terminal dimension is dimension before soldering.

CHARACTERISTIC CURVES

FAQ