12V 0.9W 2.5KV SPDT Power Relay Withstand Voltage 40A NB904-12S-S-C

What is SPDT solid state relay?

All switching components (MOSFET, SCR, TRIAC, IGBT, etc.) in a solid-state relay act only as SPST switches, and there is no single component in a solid-state relay that has SPDT functionality. In addition, in ordinary solid-state relays, optocouplers (with photoelectric isolation function) are used as signal transmission components, so the input control circuit of the SSR switch is electrically isolated from its output circuit. So if SPDT solid state relay is needed, we can only use a special circuit to modify the SPST SSR switch. And because of the electronic switching components, SPDT solid state relays are more efficient and consume less power than SPDT mechanical relays.

SPDT Power Relay Description:
NB904 series power relay, large switching capacity, the maximum can reach 50A, the contact form has NO., NC, and SPDT to option.2.5KV or 4KV dielectric withstand voltage between coil and contact, THT and QT terminal types for heavy duty. Sealed or dust-proof, and environmental-friendly, TUV/CQC/UL is approved, also complies with RoHS-directive, widely used in industry, agriculture, and automotive.
 
SPDT Power Relay Features:
1. 2500VAC is available for dielectric to withstand voltage between contact and coil
2. Class F for coil insulation grade
3. environmental-friendly
4. 1 Form C, SPDT, rated current 40A
5. TUV/CQC/UL certification
6. complied with RoHS-directive

SPDT Power Relay Designation:
1. NB90: Model No. (Max. contact load capacity 40A)
2. E: NO max 30 ampere none: NO max 40 ampere
3. 12: Coil Rated Voltage:5V,6V,9V,12V,15V,18V,24V,48V,110V(DC) AC type: AC24 AC120 AC220V AC240 AC277V
4. S: Package: S: Sealed D: Dustproof
5. S: Contact Material: Stagno 2
6. A: Contact Form : A: Normally Open B: Normally Close C: SPDT(NO&NC)
7. W: white None: black
8. 4KV: Between contact and coil pressure-proof 4KV None: 2500V
9. T-105℃: ambient temperature 105℃. None: normal temperature resistant
10. X: Customer code
 

SPDT power relay function:

Its function is that it can control the output of the power supply in two different directions, that is to say, it can be used to control two devices, or it can also control the same device to switch the direction of operation.