ABB 1SVR740670R0200 Insulation Monitoring Relay - IEC 61557-8
Part Number: 1SVR740670R0200
Quick Summary
ABB 1SVR740670R0200 insulation monitoring relay monitors insulation resistance in unearthed IT AC systems up to 400 V. For maintenance teams, undetected insulation faults can trigger unexpected downtime and safety risks. The device complies with CE, UKCA, and UL/CSA standards and features an IP50 housing for reliable protection in busy control panels. This combination delivers robust IT network protection while offering flexible 24–240 V AC/DC supply and a compact DIN-rail form factor, enabling easier installation and quicker deployment in new builds or retrofits. In practice, engineers gain proactive fault detection, simpler compliance documentation, and lower total cost of ownership through extended service intervals and safer operation.
Product Information
Extended Description
1SVR740670R0200 ABB: The CM-IWS.2P serves to monitor insulation resistance in accordance with IEC 61557-8 in unearthed IT AC systems with a voltage up to 400 V AC. The CM-IWS.2 can be configured to the requirements of the applications and therefore used multi-functional.
EAN
4016779852654
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-IWS.2x Insulation monitoring relay with screw or push-in terminals
Instructions and Manuals
Instruction Sheet / Manual - CM-IWS.1; CM-IWS.2 Insulation monitoring relays, with screw or push-in terminals
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
22.5 mm
Product Net Height
85.6 mm
Product Net Depth / Length
103.7 mm
Product Net Weight
0.13 kg
Function
Unearthed AC systems | Up to 400 V AC
Measuring Range
1 ... 100 kΩ
Rated Control Supply Voltage (Us)
24 ... 240 V AC/DC
Rated Frequency (f)
Measuring Circuit DC Hz | Measuring Circuit 15 ... 400 Hz | Supply Circuit 50/60 Hz
Output
1 c/o (SPDT) contact
Terminal Type
Screwless Terminals
Rated Operational Current AC-12 (Ie)
(230 V) 4 A
Rated Operational Current AC-15 (Ie)
(230 V) 3 A
Rated Operational Current DC-12 (Ie)
(24 V) 4 A
Rated Operational Current DC-13 (Ie)
(24 V) 2 A
Minimum Switching Capacity
24 V | 10 mA
Rated Impulse Withstand Voltage (Uimp)
Measuring Circuit / Output Circuit 6 kV | Supply Circuit / Measuring Circuit 6 kV | Supply Circuit / Output Circuit 6 kV
Rated Insulation Voltage (Ui)
Measuring Circuit / Output Circuit 400 V | Supply Circuit / Measuring Circuit 400 V | Supply Circuit / Output Circuit 300 V
Degree of Protection
Housing IP50 | Terminals IP20
Overvoltage Category
III
Pollution Degree
3
Short-Circuit Protective Devices
Output Circuit NC - F Type Fuses 6 A | Output Circuit NO - F Type Fuses 10 A
System Leakage Capacitance (CE)
10 µF
Electrical Durability
AC-12 100000 cycle
Mechanical Durability
Nr. Operations 30000000 cycle
Connecting Capacity
Flexible with Ferrule 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | Flexible 2x 0.5 ... 1.5 mm² | Rigid 2x 0.5 ... 1.5 mm²
Wire Stripping Length
8 mm
Recommended Screw Driver
0.8 x 4
Mounting Position
1 ... 6
Mounting on DIN Rail
TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 | TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715
Standards
CAN/CSA C22.2 No.14 | IEC/EN 63000 | IEC/EN 61326-2-4 | IEC/EN 61557-1 | IEC/EN 61557-8 | UL 508
Maximum Operating Voltage UL/CSA
Output Circuit 300 V AC
Contact Rating UL/CSA
B300
Connecting Capacity UL/CSA
Flexible 2x 18-16 AWG | Rigid 2x 20-16 AWG
Pilot Duty UL/CSA
B300
Flammability According to UL94
V-0
Ambient Air Temperature
Operation -25 ... +60 °C | Storage -40 ... +85 °C
Maximum Operating Altitude Permissible
Without Derating 2000 m
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
REACh Info for Electronic Relays and Controls
RoHS Information
RoHS Declaration of conformity for Electronic Relays and Controls
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
SCIP
2b38043d-2535-4ade-b70b-2b2a3164ad82 Germany (DE)
Simplified SCIP
79289a28-7562-4f40-bba4-3d1b97a77f62 Finland (FI) | be9bda16-1eb7-4243-a6ad-c1a2ce90c164 France (FR) | 6ae233a6-d959-4dbb-8a98-6ede2508da23 Germany (DE) | 98539205-0aa6-46ef-b833-877d631fe9d6 Hungary (HU) | cf2076a9-5f2e-46ad-aafb-2fe363f75b69 Bulgaria (BG) | af914a27-1c16-4d57-993b-83be929b15a3 Poland (PL) | 656ec363-0215-4e43-9a7a-fec8eb52ffb1 Norway (NO) | b1fcca01-63ec-4226-ad38-c9f7bf5c70a5 Croatia (HR) | 8d93a184-9a2f-4f77-bad3-a86e43b636db Portugal (PT) | 514fbcd6-3f39-4887-941d-47f39f48a6fa Spain (ES) | dca9fced-4b35-429a-93d2-b782b6233c74 Sweden (SE) | 2b659d27-7bbb-495f-9f33-101d7f1da9b2 France (FR) | f3a51b27-6ec5-48a1-ad93-dbc8e980efed Hungary (HU) | 3c9ab85a-c1b7-4d75-9232-961d0cb06080 Belgium (BE) | 564e1b7a-69d9-4a0e-87e9-448fc0c509a6 Estonia (EE) | 6dfd6af1-b518-4878-8881-99f6f682d81e Sweden (SE) | 3d119b9e-910b-4ee2-a1cd-0ba4e20da564 Greece (GR) | ac5d82e9-27f4-4b29-82d5-8237b9396a23 Czech Republic (CZ) | 12e498e8-32d7-4df0-8bbd-989b023f6759 Netherlands (NL) | d152bd82-2cdb-4309-bcd8-94f480d0eb9c Poland (PL) | 872e1608-264a-4a3d-a29a-58368812f216 Denmark (DK) | 17c83537-ec12-4adc-abb1-bb43b35637a3 Germany (DE) | fa135d24-5590-4274-8a0e-57fc735cce1f Italy (IT) | 0dff8b87-1024-404d-9e05-46423e736886 Germany (DE) | e92e3341-a441-41bd-91fd-2a178d421b94 Belgium (BE) | cf7e4912-b8ef-4a55-9f28-37f8f7643380 Germany (DE) | 268e3edd-4348-4c41-87bc-b1cfb62994a5 Poland (PL)
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Electronic Relays and Controls
CB Certificate
CB_DK-30302-A1-UL
CCC Certificate
CCC Certificate - Insulation monitoring relays CM-IWS.x, CM-IWN.x, and coupling unit CM-IVN, old and new housing
CQC Certificate
CQC Certificate, Insulation Monitoring Relays, CM-IWS.xx, CM-IWN.xx, CM-IVN.x, Made in Germany
cULus Certificate
cULus508_20120727-E140448
Declaration of Conformity - CCC
CCC Declaration of Conformity, Insulation Monitoring Relays, CM-IWS.xx, CM-IWN.xx, CM-IVN.x, Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-IWS.xx, CM-IWN.xx, CM-IVN.x Insulation monitoring relay
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-IWS.xx, CM-IWN.xx, CM-IVN.x Insulation monitoring relay
DNV GL Certificate
DNV GL Certificate - CM-IWS.1, CM-IWS.2, CM-IWN.1, CM-IVN insulation monitoring relays
Package Level 1 Units
box 1 piece
Package Level 1 Width
97 mm
Package Level 1 Depth / Length
30 mm
Package Level 1 Height
109 mm
Package Level 1 Gross Weight
0.155 kg
Package Level 1 EAN
4016779852654
Object Classification Code
B
ETIM 7
EC001444 - Insulation and earth fault monitoring relay
ETIM 8
EC001444 - Insulation and earth fault monitoring relay
ETIM 9
EC001444 - Insulation and earth fault monitoring relay
eClass
V11.0 : 27371807
UNSPSC
39122331
E-Number (Finland)
2712261
E-Number (Norway)
4187804
E-Number (Sweden)
3860660
Feature: Measuring range of 1 … 100 kΩ with a rated control supply of 24 … 240 V AC/DC. Business impact: Enables accurate insulation condition assessment across a wide range, reducing false alarms and enabling timely interventions. Application: Ideal for unearthed IT networks and industrial equipment where floating voltages exist. Feature: SPDT output (1 c/o) and 6 kV impulse withstand across circuits. Business impact: Simplifies wiring and safety interlocks while maintaining robust protection during switching transients. Application: Safe integration with contactors and safety relays in automation panels. Feature: DIN rail mounting on TH35-15 or TH35-7.5 and screw terminals. Business impact: Quick, error-free installation with versatile mounting; reduces commissioning time. Application: Deployment in new builds and retrofits with limited space. Feature: IP50 housing; operating temperature -25 to +60 °C; 2,000 m without derating. Business impact: Reliable operation in typical factory environments; minimizes environmental risk. Application: Control cabinets with dust exposure or elevated temperatures. Feature: Compliance and certifications (CE, UKCA, UL/CSA, CB, CCC, cULus) plus IEC 61557-1 and -8. Business impact: Strengthens audit readiness and regulatory conformity; lowers certification costs over the lifecycle. Application: Global installations with diverse compliance requirements. Feature: Mechanical durability (30,000,000 cycles) and electrical durability (AC-12 100,000 cycles). Business impact: Longer service life, reduced maintenance, lower ownership costs. Application: High-cycle switching in automated lines.
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FAQs
The CM-IWS.2P supports DIN rail mounting on TH35-15 or TH35-7.5 rails with 1 to 6 mounting positions. It uses screwless terminals for quick, reliable wiring and reduces installation time in panel assemblies.
Key specs include a measuring range of 1–100 kΩ, rated control supply of 24–240 VAC/DC, and a 1 c/o SPDT output. Uimp is 6 kV, Ui is up to 400 V for the measuring circuit, and IP50 housing protects the device inside the enclosure while IP20 applies to terminals.
Certifications include CE, UKCA, UL/CSA, CB, CCC, and cULus. It also aligns with IEC/EN 61557-1 and 61557-8, UL 508, and other regional conformity marks for global deployments.
It excels in unearthed IT AC networks, data centers, and manufacturing cells with floating mains. The device continuously monitors insulation resistance, enabling early fault detection and preventing unsafe voltages from propagating through the system.
By providing continuous insulation monitoring, it reduces unplanned outages and safety incidents. Its high electrical/electrical durability, plus straightforward installation, lowers maintenance frequency and extends service life, delivering a favorable total cost of ownership over time.