ABB 1SVR405666R2000 Plug-in module varistor - Overvoltage protection
Part Number: 1SVR405666R2000
Quick Summary
ABB 1SVR405666R2000 is a plug‑in varistor module delivering overvoltage protection for ABB CR-U relay sockets in automation panels. This design helps engineers avoid surge‑induced equipment failures and reduces unplanned downtime in complex automation lines. It meets CE, UL 508, and RoHS compliance, with CSA and IEC standards ensuring safety and interoperability. By integrating with CR-U sockets, this module streamlines maintenance and supports scalable control system architecture, delivering reliability, easy replacement, and consistent performance across industrial applications.
Product Information
Extended Description
1SVR405666R2000 ABB: The CR-U 81 plug-in module is a pluggable function module for the CR-U range sockets. This module provides overvoltage protection. The rated control supply voltage is 230 V AC.
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
AETAD009EXPU
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
BRABB008EXPU
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
CHSEC006EXPU
Lead Time
35 day
Warranty Return
Product under warranty must be returned
Stocked At Warehouses
CZABB004EXPU
Country of Origin
Germany (DE)
Made To Order
No
Product Sales Status
Active
Quote Only
No
EAN
4013614529269
Minimum Order Quantity
10 piece
Customs Tariff Number
85480090
Data Sheet, Technical Information
Catalog 2024 Electronic Relays and Controls - Chapter Interface relays and optocouplers
Instructions and Manuals
2CDC117008D0204
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
34 mm
Product Net Height
24 mm
Product Net Depth / Length
9 mm
Product Net Weight
0.007 kg
Function
Accessory for interface relays CR-U
Sub-Function
Pluggable function module for universal relay sockets
Sub-Function 2
Overvoltage protection
Rated Control Supply Voltage (Us)
230 V AC
Output
none
Output Signal
none
Standards
CAN/CSA C22.2 No.14 | IEC/EN 63000 | IEC/EN 61984 | UL 508
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
RoHS Information
EU Declaration of Conformity - CR-M, CR-P, CR-U Socket and accessories
RoHS Status
Following EU Directive 2011/65/EU
CSA Certificate
CSA Certificate – Sockets and function modules for pluggable interface relays CR-S, CR-P, CR-M, CR-U
cURus Certificate
cURus508_E244328
Declaration of Conformity - CE
EU Declaration of Conformity - CR-M, CR-P, CR-U Socket and accessories
Declaration of Conformity - UKCA
UK Declaration of Conformity - CR-M, CR-P, CR-U Socket and accessories
EAC Certificate
EAC_RU_C-DE.ME77.B.00446-19
Package Level 1 Units
bag 10 piece
Package Level 1 Width
180 mm
Package Level 1 Depth / Length
9 mm
Package Level 1 Height
220 mm
Package Level 1 Gross Weight
0.072 kg
Package Level 1 EAN
4013614374548
Object Classification Code
K
ETIM 7
EC002586 - Accessories for switching relay
ETIM 8
EC002586 - Accessories/spare parts for switching relay
ETIM 9
EC002586 - Accessories/spare parts for switching relay
eClass
V11.0 : 27371692
UNSPSC
39122331
E-Number (Finland)
2712812
E-Number (Norway)
4187515
E-Number (Sweden)
4005456
Feature: Pluggable varistor module for CR‑U sockets → Business Impact: Simplifies maintenance and enables rapid field replacement, reducing downtime during panel upgrades or fault isolation → Application: Control panels and machine safety circuits requiring quick swaps. Feature: Overvoltage protection rated for 230 V AC control supply → Business Impact: Protects relays and field devices from surge damage, extending component life and lowering fault rates → Application: Automation cabinets and control loops in manufacturing lines. Feature: Compliance with multiple standards and RoHS → Business Impact: Ensures regulatory alignment, simplifies procurement, and accelerates customer approvals → Application: European and global deployments with strict safety and environmental requirements. Feature: Compact dimensions (34 × 24 × 9 mm) and light weight (0.007 kg) → Business Impact: Maximizes panel density and reduces enclosure space needs → Application: Small-format control panels and crowded automation racks. Feature: Documentation and CAD availability → Business Impact: Speeds engineering integration and reduces design time → Application: System integrator workflows and OEM deployments.
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FAQs
This module is designed as a plug‑in accessory for CR‑U universal relay sockets and installs directly in CR‑U sockets without special tools. It preserves 230 V AC control wiring while providing tight mechanical fit in standard ABB control panels. Verify CR‑U socket compatibility and panel clearance before installation to ensure correct seating and reliable contact with the relay base.
Key specs include a rated control supply voltage of 230 V AC, no output signal, and an overvoltage protection function integrated into the plug‑in module. It is designed for use with CR‑U sockets and supports standard IEC/UL safety frameworks. It is RoHS compliant and adheres to listed standards such as UL 508 and IEC/EN 63000 for safe integration in industrial controls.
Yes. The module is specifically rated for 230 V AC control circuits and provides overvoltage protection within CR‑U relay networks. Its compact form factor helps to preserve panel space while maintaining reliable interference suppression and surge protection for critical automation functions.
The product is CE certified and UL 508 listed, with CSA/cURus documentation available. It also aligns with RoHS requirements and IEC/EN 63000, IEC/EN 61984 standards, supporting broad regulatory compliance for European and North American installations.
Because it is a pluggable module, maintenance involves straightforward replacement in the event of surge damage, minimizing panel downtime. The protective function reduces wear on relays and connected devices, leading to lower failure rates, predictable upkeep, and faster repair cycles—resulting in measurable uptime gains and lower total cost of ownership over the system life cycle.