Step1: Product
TE Connectivity Potter & Brumfield Relays SR4D4021
Image shown is a representation only
Manufacturer
Manufacturer No
SR4D4021
Packaging
Tube
Description
RELAY SAFETY 4PST 8A 21V
Detailed Description
Safety Relay 4PST-2NO/2NC (2 Form A, 2 Form B) 21VDC Coil Through Hole
Datasheet
Series
SR4, SCHRACK
Packaging
Tube
Coil Power
800mW
Coil Current
38.1 mA
Coil Voltage
21VDC
Contact Form
4PST-2NO/2NC (2 Form A, 2 Form B)
Manufacturer
TE Connectivity Potter & Brumfield Relays
Mounting Type
Through Hole
Coil Resistance
551 Ohms
Contact Material
Silver Tin Oxide (AgSnO)
Switching Voltage
400VAC - Max
Termination Style
PC Pin
Base Product Number
SR4D
Must Operate Voltage
16 VDC
Must Release Voltage
2.1 VDC
Operating Temperature
-25°C ~ 70°C
Contact Rating (Current)
8 A
| Attribute | Value |
|---|---|
| Series | SR4, SCHRACK |
| Packaging | Tube |
| Coil Power | 800mW |
| Coil Current | 38.1 mA |
| Coil Voltage | 21VDC |
| Contact Form | 4PST-2NO/2NC (2 Form A, 2 Form B) |
| Manufacturer | TE Connectivity Potter & Brumfield Relays |
| Mounting Type | Through Hole |
| Coil Resistance | 551 Ohms |
| Contact Material | Silver Tin Oxide (AgSnO) |
| Switching Voltage | 400VAC - Max |
| Termination Style | PC Pin |
| Base Product Number | SR4D |
| Must Operate Voltage | 16 VDC |
| Must Release Voltage | 2.1 VDC |
| Operating Temperature | -25°C ~ 70°C |
| Contact Rating (Current) | 8 A |
Purchase & Inquiry
Placing an Order
You may place an order on DAXIN without creating an account.
Available Payment Methods
For your convenience, we accept several payment methods in USD, including PayPal, credit card, and wire transfer.
RFQ (Request for Quote)
We recommend submitting an RFQ to receive the latest pricing and inventory information for the parts you need.
Our sales team will respond to your request by email within 24 hours.
Important Notes
1. You will receive an order information email in your inbox. Please check your spam folder if you do not find the email.
2. Since inventory and pricing may change from time to time, our sales manager will reconfirm your order and notify you if any updates are needed.
Payment Method
Shipping Method
- Shipped from
- Hongkong/Shenzhen warehouse
- Estimated Ship Date
- Oct 3, 2026 - Oct 4, 2026
- Lead Time
- Contact us to confirm availability
- Shipping Fee
- Calculated based on your destination
Packages
