This post explains for the relay.

The Part Number is SMIH-24VDC-S-L-C.

The function of this relay is 24V, Relay.

Manufacturer: NingBo Songle

Preview images :

Description

SMIH-24VDC-S-L-C is DC 24V, 1 form C Type, Relay. A relay allows a low-power electrical signal, such as from a microcontroller or sensor, to control a much larger current or voltage, such as required to drive a motor or light bulb. This allows a small electronic device to control a much larger one, or to isolate the low-power circuit from the high-power one. Relays are used in a wide range of applications, including automotive systems, HVAC systems, and computer power supplies.

Features

1. SPST through DPDT contact arrangements.

2. 5KV dielectric,coil to contact.

3. Standard type and plastic sealed type available.

4. High sensitivity type for low coil consumption is available.

5. For electrical device in control system,e.g heating controllers. servo motors,solenoid valves,lifting magnets etc.

COLL SPECIFICATION [at25degrees ] Coil Sensitivity Nominal Voltage (VDC) 3 5 Nominal Current (mA) 120 71 60 40 30 20 15 150 89 75 50 37.5 25 18.7 Coil Resistance (ohm+10%)  17 47 68 155 270 600 1100 12.5 36 50 115 200 450 820 - Power Consumption (w) Pull-in Voltage (VDC) Drop-out Voltage (VDC) Max-Allow Able Voltage(VDC) High Senstivity 6 9 12 18 24 3 5 abt 0.54w 75%Max 5%MIn 130% Standard Sensitivity 6 9 12 18 24 Abt 0.72w 75%Max 5%MIn 130% !CONTACT RATING Contact Form Contact Capacity Resistave Load(cos”=1) Inductiv Load(cos”=0.4) L/R=7msec Contact Material !NOTE: Contact ratin […]

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SMIH-24VDC-S-L-C PDF Datasheet

Part Number: SSR-25DA

Function: DC to AC Solid State Relay

Package: Surface Mounting Type

Manufacturer: Fotek

Images:

Description

SSR-25DA is 25A, solid state relay. A DC to AC Solid State Relay (SSR) is an electronic switching device that allows a direct current (DC) input signal to control the switching of an alternating current (AC) output load. It uses solid state components like thyristors, triacs, or transistors to perform the switching function, without the need for mechanical contacts like in traditional electromechanical relays.

SSRs are commonly used in various applications where precise and rapid switching of AC loads is required, such as in industrial control systems, heating elements, motor control, and more. They offer advantages like faster switching times, longer lifespan due to no mechanical wear, and reduced electromagnetic interference compared to traditional relays.

Features

1. High Reliability by S.M.T & TQC

2. High Isolation over than 50MΩ / 500VDC

3. High Dielectric over than 2.5kV

4. Low Enable Current less than 7.5mA / 12VDC

5. Low EMI / EFI & Surge by Zero Cross Trigger Method

6. High Surge Current Duration Over 10 Times fo Rated Current / One Cycle

7. High Surge Voltage Duration by Snubber Circuit.

Pinouts:

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SSR-25DA PDF Datasheet