The HW-38F-2Z Power Relay 50A is a high-current electromagnetic relay designed for switching heavy electrical loads in industrial and commercial control systems. It uses a 2Z dual-contact arrangement and silver alloy contacts to support reliable load switching, improved conductivity, and durable operation under demanding working conditions.
This Power Relay 50A is widely used by industrial users, commercial users, electrical contractors, distributors, and equipment manufacturers in power supplies, automation panels, motor control units, lighting systems, and HVAC equipment. For B2B buyers seeking a China manufacturer, factory, supplier, exporter, or wholesale partner, the HW-38F-2Z is well suited for bulk purchase, OEM, ODM, private label, and custom sourcing projects where stable quality and high current capacity are important.
Key product features include durable construction, long endurance life, reinforced high-current switching capability, and suitability for high-voltage and current-surge environments. This makes it a practical choice for companies and distributors that need a dependable Power Relay 50A with dual contacts for electrical control cabinets, industrial machinery, and commercial equipment production.
Model Description
| HW | 38F | 2 | Optional | Optional | D | VDC |
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ |
①Enterprise code: Hangwang Electric
②Serial number: 38F
③Number of contact groups: 2
④Contact form: (Z-conversion type H-normally open type D-normally closed contact)
⑤Mounted type: P: PCB mounted type No letters: plug-in mounted
⑥Auxiliary function: D/CR-Inhibitory protection
⑦Coil voltage: (DC: direct voltage AC: alternating voltage)
Contact parameters
| Contact form | 2Z,2H,2D |
| Contact load | 50A |
| Maximum switching voltage | 28VAC 50A 240VDC 50A |
| Contact material | Silver alloy |
Operating Coils
| Rated voltage V | DC12V | DC24V | DC110V | DC220V |
| Rated current(+10%)mA | 167 | 83.3 | 18.2 | 9 |
| Coil resistance(+10%)Ω | 71.8 | 288 | 6044 | 24444 |
| Rated power consumption W | 2.0W | |||
| Pick-up voltage（max）V | Less than 75% | |||
| Drop-out voltage (min) V | 10% or more | |||
| Allowable voltage(max) V | Rated voltage ×110% | |||
| Rated voltage V | AC12V | AC24V | AC110V | AC220V |
| Rated current(+10%)mA | 333 | 167 | 36 | 18.1 |
| Coil resistance(+10%)Ω | 12.6 | 50.3 | 1069 | 4254 |
| Rated power consumption W | 5.5VA | |||
| Pick-up voltage（max）V | Less than 80% | |||
| Drop-out voltage (min) V | 30% or more | |||
| Allowable voltage(max) V | Rated voltage ×110% | |||
Product Technical Parameters
| Contact resistance | ≤100mΩ |
| Electrical life | ≥5×10⁴times |
| Mechanical life | ≥ 1×10⁶ times |
| Coil voltage | DC: 6-220V AC: 6-380V |
| Suction time | ≤25ms |
| Release time | ≤15ms |
| Between the same pole contacts | 1000VAC/1min(Leakage current 1mA) |
| Between opposite pole contacts | 1500VAC/1min(Leakage current 1mA) |
| Between contact and coil | 2500VAC/1min(Leakage current 1mA) |
| Insulation resistance | ≥100MΩ(500VDC) |
| Ambient temperature | -25°C ~ +55°C |
| Ambient humidity | 35% ~ 80%RH |
| Atmospheric pressure | 86 ~ 106KPa |
| Impact resistance | 10G (Sine wave half pulse: 11ms) |
| Vibration resistance | 10-55Hz (Double amplitude: 1.5mm) |
| Dimensions | 55.5 × 38.2×42mm |
| Weight | About 125g |
Product Size and Installation
FAQ
What is the HW-38F-2Z Power Relay 50A used for?
The HW-38F-2Z Power Relay 50A is used to switch high-current loads in power supply systems, industrial machinery, automation equipment, motor control, lighting control, and HVAC systems. It is suitable for industrial buyers, contractors, and distributors that need reliable heavy-load switching components.
What are the main features of this Power Relay 50A?
Its main features include a 2Z dual-contact arrangement, 50A switching capacity, silver alloy contacts, and durable construction for demanding industrial applications. These features help support long service life and reliable switching performance.
Is this Power Relay 50A suitable for OEM or ODM projects?
Yes. This type of Power Relay 50A is a strong fit for OEM, ODM, custom, private label, and white label procurement programs because B2B buyers often source high-current relays for panel building, equipment manufacturing, and wholesale distribution.
Can distributors and wholesalers buy the HW-38F-2Z in bulk?
Yes. The product is suitable for bulk purchase, wholesale supply, and distributor sourcing, especially for buyers looking for a China manufacturer, factory, or exporter of power relay products. This aligns well with commercial procurement and long-term supply projects.
Why choose a dual-contact Power Relay 50A for industrial applications?
A dual-contact design can support flexible circuit control in equipment that needs stable high-current switching. In industrial and commercial systems, this helps relay-based control circuits manage motors, lighting, HVAC, and power equipment more reliably.
Request a Quote Now
Our team will get back to you within 24 hours.
