Bryan Obida

We are online

Monday - Friday 6AM - 6PM PST

SR2B121B Schneider Electric Industrial Automation Components

Schneider Electric SR2B121B Schneider Electric SR2B121B is a compact smart/programmable control unit designed for DIN rail mounting. It falls under the SR2 sub-range and is equipped with 12 I/Os featuring 4 contact outputs. This controller operates within an ambient air temperature range of -20 to +55°C and offers a memory capacity of 120 lines for ladder programming or 200 lines for FBD programming. The SR2B121B provides a degree of protection of IP40 for the front panel and IP20 for the terminal block, and it is designed to work with a network frequency of 50/60 Hz. The current consumption without extension is 0.145 A, and it supports a supply voltage of 24 V AC. The controller includes screw-clamp terminals, boasts an electrical durability of 500,000 operations with load, and a mechanical durability of 10,000,000 operations at no load. Its processing time ranges from 6 to 90 ms, with an operating rate of 36,000 cycles/hour at no load and 360 cycles/hour at Ie. The SR2B121B features an LCD display and incorporates protection functions such as reverse polarity and program memory check on each power-up.
Schneider Electric

Part#:SR2B121B

Manufacturer:Schneider Electric

Product Lifecycle:Active

In-stock parts: 26

Nov 14, 2024

Schneider Electric SR2B121B is a compact smart/programmable control unit designed for DIN rail mounting. It falls under the SR2 sub-range and is equipped with 12 I/Os featuring 4 contact outputs. This controller operates within an ambient air temperature range of -20 to +55°C and offers a memory capacity of 120 lines for ladder programming or 200 lines for FBD programming. The SR2B121B provides a degree of protection of IP40 for the front panel and IP20 for the terminal block, and it is designed to work with a network frequency of 50/60 Hz. The current consumption without extension is 0.145 A, and it supports a supply voltage of 24 V AC. The controller includes screw-clamp terminals, boasts an electrical durability of 500,000 operations with load, and a mechanical durability of 10,000,000 operations at no load. Its processing time ranges from 6 to 90 ms, with an operating rate of 36,000 cycles/hour at no load and 360 cycles/hour at Ie. The SR2B121B features an LCD display and incorporates protection functions such as reverse polarity and program memory check on each power-up.

About the manufacturer: Schneider Electric is one of the manufacturers that offers Industrial Automation Components that you can order at Quotebeam.com. We provide digital solutions for energy and automation that improve efficiency and support sustainability. Our comprehensive solutions include cutting-edge energy technologies, real-time automation, software, and services for residential, commercial, and industrial settings.

Check out the SR2B121B Schneider Electric price in the box on the right side or send a quick quote.

Product Details

  • Response Time
    50 ms ladder from state 0 to state 1)discrete input 50 ms ladder from state 1 to state 0)discrete input 50...255 ms FBD from state 0 to state 1)discrete input 50...255 ms FBD from state 1 to state 0)discrete input 10 ms from state 0 to
  • Electrical Durability
    AC-12 500000 cycles 230 V, 1.5 A relay output EN/IEC 60947-5-1 AC-15 500000 cycles 230 V, 0.9 A relay output EN/IEC 60947-5-1 DC-12 500000 cycles 24 V, 1.5 A relay output EN/IEC 60947-5-1 DC-13 500000 cycles 24 V, 0.6 A relay output EN/IEC
  • Connections - Terminals
    Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) semi-solid Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) solid Screw terminals, 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.2...2 x
  • Discrete Input Frequency
    57...63 Hz 47...53 Hz
  • Number Or Control Scheme Lines
    0…240 ladder 0…500 FBD
  • Clock Drift
    12 min/year 32…131 °F (0…55 °C) 6 s/month 77 °F (25 °C)
  • Output Voltage Limits
    5...30 V DC relay output) 24...250 V AC
  • Operating Rate In Hz
    0.1 Hz at Ie)relay output 10 Hz no load)relay output
  • Net Weight
    0.55 lb(US) (0.25 kg)
  • [Uimp] Rated Impulse Withstand Voltage
    4 kV EN/IEC 60947-1 and EN/IEC 60664-1
  • Output Thermal Current
    8 A for all 4 outputs relay output
  • Discrete Input Current
    4.4 mA
  • Overvoltage Category
    III EN/IEC 60664-1
  • Tightening Torque
    4.43 lbf.in (0.5 N.m)
  • Clock
    With
  • Mechanical Durability
    10000000 cycles relay output
  • Switching Capacity In Ma
    >= 10 mA 12 V relay output)
  • Contacts Type And Composition
    NO relay output
  • Number Of Outputs
    4 relay
  • Current State 0 Guaranteed
    <= 0.5 mA discrete input)
  • Input Impedance
    4.6 kOhm discrete input
  • Voltage State 1 Guaranteed
    >= 14 V discrete input
  • Voltage State 0 Guaranteed
    <= 5 V discrete input
  • Current State 1 Guaranteed
    >= 2 mA discrete input)
  • Isolation Voltage
    1780 V
  • Protection Type
    Against inversion of terminals (control instructions not executed)
  • Discrete Input Voltage
    24 V AC
  • Supply Voltage Limits
    20.4…28.8 V
  • Maximum Supply Current
    145 mA without extension)
  • Power Consumption In VA
    4 VA without extension
  • Discrete Input Number
    8
  • Supply Frequency
    50/60 Hz
  • Checks
    Program memory on each power up
  • [Us] Rated Supply Voltage
    24 V AC
  • Backup Time
    10 years 77 °F (25 °C)
  • Cycle Time
    6…90 ms
  • Local Display
    With
  • Product Or Component Type
    Compact smart relay
  • Range Of Product
    Zelio Logic

Product condition

ORIGINAL PACKAGING

SURPLUS ORIGINAL PACKAGING - 100% unused and in original packaging



This item can ship within 5 days!

1-year warranty

$147.75

Stock:

26

Select Qty:

$147.75

$147.75 each

By purchasing this item, you agree to the Terms & Conditions

Quotebeam is NOT an authorized distributor of Schneider Electric

Shipping and Delivery Worldwide

calculate costs and time


Secure Payment Processing

with money back guarantee


1 year warranty

on all parts


Responsive Customer Support

we're here to help!

Need more details?

Feel free to chat with us or check our FAQ

Schneider Electric Disclaimer:

The product is unused surplus. Quotebeam is not an authorized surplus dealer or affiliate for the Manufacturer of this product. Products may feature older date codes or be from an earlier series than what is currently available from the manufacturer or authorized dealers. Because Quotebeam is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Schneider Electric Controls products will have firmware already installed, Quotebeam makes no representation as to whether a Controls product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Quotebeam also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Schneider Electric, its distributors, or any other source. Quotebeam also makes no representations as to your right to install any such firmware on the product. Quotebeam will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Relevant products

Do you have questions?

We’re here for you ✨

We are a proud member of:

Association for High Technology Distribution LogoAssociation for Advancing Automation LogoThe International Society of Automation Logo