ABB 1SVR405621R6400 Pluggable Interface Relay - UL 508
Part Number: 1SVR405621R6400
Quick Summary
Pluggable interface relay is a compact plug-in device for safe, reliable signal switching on DIN rails in control panels. Wiring complexity, coil-voltage compatibility, and routine maintenance in crowded electrical cabinets are common pain points. Certified for global compliance, including UL/CSA UR listing, CE/UKCA declarations, and IP40 protection, it keeps critical control paths safe. Designed for DIN-rail mounting and 24 V DC or 48 V DC control, it accelerates commissioning and reduces wiring errors. This makes it ideal for engineers seeking reliable automation reliability, quick testing, and scalable expansions across industrial plants. In high-cycle environments, the built-in LED indicator and test button aid commissioning and diagnostics, saving valuable downtime.
Product Information
Extended Description
1SVR405621R6400 ABB: The CR-U048DC2LD pluggable interface relay is a univeral relay and is also commonly referred to as an ice cube relay. CR-U relays may be plugged into CR-U sockets and this combination of relay and socket may be seemlessly snap-on mounted onto a DIN Rail. CR-U relays have robust circular pin terminals, designed and manufactured to handle tough, repetitive-use applications and are more durable than standard relays.This relay operates with a 48 V DC rated control supply voltage and has a 2 c/o (SPDT) output with contacts rated at 250 V / 10 A, enabling the possibility of switching multiple circuits with a single input signal. The relay has an integrated test button which is used for the manual actuation of the relay by locking it's output contacts. The test button facilitates easy testing and commissioning. The relay also has an integrated LED, which provides the visual indication of the energization of the relay coil, and a diode, for surge suppression. Standard sockets, logic sockets, pluggable function modules, holders and markers are available as accessories. Standard sockets, logical sockets, pluggable function modules, holder and marker are available as accessories.
EAN
4013614537370
Minimum Order Quantity
10 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Catalog 2024 Electronic Relays and Controls - Chapter Interface relays and optocouplers
Instructions and Manuals
Instructions - CR-M, CR-P, CR-U range
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
35 mm
Product Net Height
54 mm
Product Net Depth / Length
35 mm
Product Net Weight
0.083 kg
Function
Pluggable universal interface relay CR-U
Sub-Function
Relay with built in LED and Diode
Rated Control Supply Voltage (Us)
48 V DC
Rated Operational Voltage
250 V AC
Output
2 c/o (SPDT) contacts
Output Signal
250 V / 10 A
Terminal Type
Pin
Rated Operational Current AC-12 (Ie)
(230 V) 10 A
Rated Operational Current AC-15 (Ie)
(120 V) 3 A | (230 V) 1.5 A
Rated Operational Current DC-12 (Ie)
(24 V) 10 A
Rated Operational Current DC-13 (Ie)
(24 V) 2 A | (250 V) 0.1 A
Rated Insulation Voltage (Ui)
250 V
Degree of Protection
IP40
Pollution Degree
3
Mounting Position
1
Standards
CAN/CSA C22.2 No.14 | IEC/EN 63000 | IEC/EN 61810-1 | UL 508
Maximum Operating Voltage UL/CSA
300 V AC
Contact Rating UL/CSA
B300
Pilot Duty UL/CSA
B300
Flammability According to UL94
HB
Ambient Air Temperature
Operation -40 ... +70 °C | Storage -40 ... +85 °C
Maximum Operating Altitude Permissible
Without Derating 2000 m
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
RoHS Information
EU Declaration of Conformity - CR-M, CR-U Pluggable interface relay
CQC Certificate
CQC Certificate, Interface Relays, CR-U, Made in Poland
CSA Certificate
CSA Certificate - Pluggable interface relays CR-P and CR-U
Declaration of Conformity - CCC
CCC Declaration of Conformity, Interface Relays, CR-U, Made in Poland
Declaration of Conformity - CE
EU Declaration of Conformity - CR-M, CR-U Pluggable interface relay
Declaration of Conformity - UKCA
UK Declaration of Conformity - CR-M, CR-U Pluggable interface-relays and accessories
EAC Certificate
EAC_RU_C-DE.ME77.B.00446-19
LR Certificate
LR Certificate - Pluggable interface relays CR-M and CR-U range
RMRS Certificate
RMRS_1740019275
UR Certificate
UR (ANSI/UL 508) Certificate - Pluggable interface relays / optocouplers CR-M, CR-MX, CR-P, CR-S, CR-U range
VDE Certificate
VDE Certificate - Pluggable interface relays CR-U range
Package Level 1 Units
box 10 piece
Package Level 1 Width
182 mm
Package Level 1 Depth / Length
77 mm
Package Level 1 Height
76 mm
Package Level 1 Gross Weight
0.87 kg
Package Level 1 EAN
4013614537660
Object Classification Code
K
ETIM 7
EC001437 - Switching relay
ETIM 8
EC001437 - Switching relay
ETIM 9
EC001437 - Switching relay
eClass
V11.0 : 27371601
UNSPSC
39122331
Feature: Pluggable CR-U relay design with CR-U sockets enables quick field replacement and minimal downtime. The plug-in arrangement eliminates complex wiring during maintenance, while the snap-on DIN rail mounting keeps the module firmly positioned in crowded cabinets. Business impact: faster fault isolation and reduced spare-part stock, translating into measurable uptime improvements for critical processes. Application: manufacturing lines, packaging equipment, and automated test rigs where rapid changeover is essential. Feature: 48 V DC rated control supply voltage and built-in LED indicator. Benefit: ensures reliable coil drive and immediate visual status to operators and technicians, reducing mis-wiring and debugging time. Application: control circuits in machine bays and panel assemblies with standard 48 V DC logic. Feature: 2 c/o SPDT contacts with 250 V AC / 10 A rating. Benefit: enables switching two circuits from a single input, reducing wiring complexity and footprint while maintaining reliable signal integrity. Application: interlocks, signaling circuits, and auxiliary controls in automated lines. Feature: Integrated diode for surge suppression. Benefit: protects driving PLCs and electronics from inductive kick, extending component life and reducing maintenance. Application: loads with inductive characteristics and fast-switching requirements. Feature: Compliance and rugged build (IP40, -40 to +70 C, DIN-rail mounting). Benefit: supports global deployments with predictable performance in harsh environments, lowering certification costs and easing procurement. Application: worldwide manufacturing facilities requiring robust, standards-compliant relays.
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FAQs
ABB 1SVR405621R6400 uses the CR-U pluggable interface relay design and is meant to snap into CR-U sockets for DIN-rail mounting. It fits standard 35 mm DIN rails and supports CR-U range accessories, including standard sockets, logic sockets, and pluggable function modules. This modular approach minimizes downtime and simplifies spare parts management in electrical panels.
The relay is driven by a 48 V DC control supply and provides 2 c/o SPDT contacts with a 250 V AC / 10 A output rating. Insulation voltage is 250 V, and the device is rated IP40 with a -40 to +70 C operating range. These specs support reliable switching for control circuits and signaling in industrial cabinets.
Yes. With a 250 V AC / 10 A rating and SPDT contacts, it handles signaling and moderate inductive loads typical in PLC interfaces and interlock circuits. The built-in diode offers surge suppression to protect PLC outputs, making it well-suited for automated machinery, conveyors, and packaging equipment in demanding environments.
This ABB CR-U relay family features a UR UL 508 certification and CE/UKCA declarations, along with additional regulatory attestations (EAC, VDE, LR, CCC). It is designed for global deployment, with IP40 protection and a robust temperature range to meet diverse industrial installation requirements.
The plug-in design enables fast field replacement, reducing downtime during fault isolation and maintenance. The built-in LED, test button, and surge protection shorten commissioning and diagnostics, while accessories enable scalable panel designs. Overall, this translates to lower maintenance costs, improved uptime, and faster project ROI in high-volume manufacturing.