FLEX Insert Relay 2K (64821 U-500)
ABB

FLEX Insert Relay 2K

Part number64821 U-500EAN / GTIN4011395294079HS code8536.90
Control & Automation
Relays & Timers
MOQ:1

Pricing

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Product Description

ABB 64821 U-500 — 3 wire connection (neutral conductor required).For switching lighting systems. For switching two independent load circuits. For controlling light and ventilation systems. Operation in 1gang 2way installations via push button input. Operation also possible via conventional push buttons (2020 US-500). Without control unit. For control element flex, 1gang, 64711-500. For control element flex, 1gang, wireless, 62711-WL-500. For control element flex, 2gang, 64721-500. For control element flex, 2gang, wireless, 62721-WL-500. For ABB Comfort switch flex control element 64765-…-500.For ABB Watchdog 180 flex sensors 6476x-…-500.For ABB Watchdog 180 flex sensors, wireless, 6276x-.-WL-500. For ABB presence detector flex sensors 6475x-…-500.Combinable with extension insert, 64891 U-500.

Technical Specifications

Manufacturer part number (MPN)
64821 U-500
EAN / GTIN
4011395294079
HS code
8536.90
Sales unit
pcs
Instructions and Manuals
2CKA000073B5095; 2CKA000073B5096; 2CKA000073B5097; 2CKA000073B5098
Instructions and Manuals (Part 2)
2CKA000073B5216
Mounting Type
Flush Mounted
Type of Fastening
Mounting with Screw; Mounting with Claw
Modular Components Included
Flush Mounted Insert with Mounting Plate
Ambient Air Temperature
Operation -25 ... +55 °C
Number of Outputs
2
Number of Inputs
2
Product Range
flexTronics; flexTronics wireless; free@home wireless; free@home
Connection Type
Pin
Terminal Type
Screw Terminals
Rated Voltage (U r )
230 V
Rated Current (I n )
8 A
Rated Frequency (f)
50 Hz
Maximum Switching Power
Fluorescent Lamp 1150 V·A; Halogen Low Voltage Lamps with Electronic Transformers (Capacitive Loads) 1150 V·A; Halogen Low Voltage Lamps with Magnetic Transformers (Inductive Loads) 1150 V·A; Incandescent Lamp or Halogen High Voltage Lamps 1840 W; LEDi 300 V·A
Load Type
Universal and LED Retrofit; LEDi/CFLi; Incandescent Lamp; Halogen Lamp, High Voltage; Halogen Lamp, Low Voltage; Fluorescent Lamp
Power Loss
0.3 W; Total 0 W
Design Range
Platform 63; Busch-balance SI; Reflex SI; Busch-Duro 2000 SI; Busch-art linear; future linear; Busch-axcent; Pure Stainless Steel; solo; carat; Busch-Dynasty; Trevion
Design Range Variant
Busch-Duro 2000 SI; Busch-Duro 2000 SI Linear; Reflex SI; Reflex SI Linear; Busch-art linear; Busch-art linear - with Decor Ring; Busch-art linear - pur; future; future linear; Busch-axcent; Busch-axcent pur
Number of Gangs
2-gang
Product Net Width
71 mm
Product Net Height
71 mm
Product Net Depth / Length
30 mm
Built-In Depth ( t 2 )
28 mm
Building Information Modeling – BIM
9AKK108471A9951
Environmental Product Declaration - EPD
9AKK108469A3355
Declaration of Conformity - CE
2CKA100000E4337
EU Data Act Compliance Declaration
9AKK108471A4355
EU Data Act Applicability and Compliance
Applicable - Compliant
ETIM 9
EC001588 - Electronic switch
eClass
V11.0 : 27144054

Standards & Compliance

HS Code
8536.90

Cross References

  • EAN 4011395294079
  • SAP 1200681858
  • Code 83539785

Product Documentation

Document preview: ABB 64821 U-500 — OEM Product Page

Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 64821 U-500?
64821 U-500 can be ordered from cballast.com as a ABB catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this ABB product?
The manufacturer part number is 64821 U-500.
What is the HS code for 64821 U-500?
The customs tariff (HS) code for 64821 U-500 is 8536.90.
Who manufactures 64821 U-500?
64821 U-500 is a ABB product in the Control & Automation range.
Is a datasheet available for 64821 U-500?
Yes — the 64821 U-500 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 64821 U-500?
The minimum order quantity is 1.
Is 64821 U-500 available?
Yes — 64821 U-500 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).