789-665 WAGO | Alldatasheet
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Data sheet | Item number: 789-665 Ground resistance signaling module; Ground fault alarm via digital output; Supply voltage: 24 VDC; Module width: 18 mm www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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The product signals a value falling below a non-adjustable, asymmetric isolation resistance between +24 V or 0 V of the supply voltage and ground by means of a potential-free con-tact (“Iso OK”) and status LED. The “Iso OK” contact can be evaluated via a PLC. This status is maintained until the next measurement interval.
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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by means of a potential-free con-tact (“Iso OK”) and status LED. The “Iso OK” contact can be evaluated via a PLC. This status is maintained until the next measurement interval. Operation with Grounded Control Circuit (Functional Potential Equalization) The module establishes an internal connection between the 0 V (X2.2) and ground (X2.1) connections via a semiconductor switch. At 10 s intervals, the connection between 0 V and ground is interrupted for 0.5 s, and the isolation resistance between +24 V (X1.3) or 0 V (X2.2) of the supply voltage and earth (X2.1) is determined. The grounding connection on the module does not meet the requirements of a protective earth terminal (PE). It serves as a functional ground. The measurement method does not involve the module establishing any permanent connection bet-ween 0 V and ground. Operation with Ungrounded Control Circuit In this operating mode, the semiconductor switch to establish a connection between 0 V (X2.2) and ground (X2.1) is deactivated. At 1 s intervals, the isolation resistance offset is determined for 0.5 s. The module does not meet the requirements of an isolation monitoring device per EN 61557-8. “Iso OK” Contact The potential-free contact serves the purpose of supporting evaluation (e.g., via a PLC) of looming isolation faults. This contact must not be used to switch safety-related products that could cause the circuit to switch off. Data Supply Nominal supply voltage US DC 24 V (SELV) Supply voltage range (DC) DC 18 … 31.2 V Power consumption at nominal supply voltage ≤ 40 mA Power loss Pl ≤ 1.7 W Current at ground fault (24 VDC) (max.) 56 mA Signaling Operation status indicator 1 x LED “Status OK” (green) 1 x LED "Status OK" (green) Signaling 1 x LED “Iso Alarm” (red) 1 x LED “Iso Alarm” 24 V ‒ Ground (yellow) 1 x LED “Iso Alarm” 0 V ‒ Ground (yellow) 1 x Signal output “Iso OK” 1 x LED "Iso Alarm" (red) 1 x LED "Iso Alarm" 24 V ‒ Ground (yellow) 1 x LED "Iso Alarm" 0 V ‒ Ground (yellow) 1 x Signal output "Iso OK"
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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Schaltspannung max. 48 VDC (SELV) Continuous current (max.) 500 mA (for general use) Number of Iso OK contacts connected in series (max.) 25 (Limit value type: 1); 32 (Limit value type: 2 and 3) (per IEC 61131) Function 1 make contact (NO); closed with applied power supply and insulation resistance > limit value Fuse Protection Required backup fusing The fuse must be placed in the output circuit of the power supply. The fuse must be adapted to the power supply used and must trip safely in case of a short circuit. The module is designed for use with a 10 A (max. ) fuse or with a 10 ADC (max.) circuit breaker (characteristic B or C). The fuse must be placed in the output circuit of the power supply. The fuse must be adapted to the power supply used and must trip safely in case of a short circuit. The module is designed for use with a max. 10 A DC thermal or magnetic circuit breaker (characteristic B or C). Safety and protection: Pollution degree 2 Overvoltage category II Protection type IP20 Test voltage (supply/"Iso OK" contact) 1.5 kVAC; 50 … 60 Hz; 1 min MTBF > 600,000 h (per MIL-HDBK-217F2) Mode: ungrounded control circuit Response value for alarm at nominal supply voltage 4 kΩ (at U = 24 V, for other values of U see signaling threshold S S characteristic) Response time 1 s Hysteresis (typ.) 1 kΩ Mode: grounded control circuit Response value for alarm at nominal supply voltage 4 kΩ (at U = 24 V, for other values of U see signaling threshold S S characteristic) Response time 10 s Hysteresis (typ.) 1 kΩ
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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Environmental Requirements Surrounding air temperature (operation) -40 … +70 °C Surrounding air temperature (storage) -40 … +85 °C Temperature range of the connecting cable according to EN 61010- 2-201 ≥ (T + 10 K)surrounding air Relative humidity 5 … 95 % (non-condensing) Operating altitude (max.) 3000 m Connection Data Connection type (1) X1.x Connection technology Push-in CAGE CLAMP® WAGO Connector eCOMpicoMAX® Solid conductor 0.25 … 1.5 mm² / 24 … 14 AWG Fine-stranded conductor 0.25 … 1.5 mm² / 24 … 14 AWG Fine-stranded conductor; with insulated ferrule 0.25 … 0.75 mm² Fine-stranded conductor; with uninsulated ferrule 0.25 … 1.5 mm² Strip length 8 … 9 mm / 0.31 … 0.35 inch Connection type 2 X2.x Connection technology 2 Push-in CAGE CLAMP® WAGO Connector 2 eCOMpicoMAX® Solid conductor 2 0.2 … 2.5 mm² / 24 … 12 AWG Fine-stranded conductor 2 0.2 … 2.5 mm² / 24 … 14 AWG Fine-stranded conductor; with insulated ferrule 2 0.25 … 1.5 mm² Fine-stranded conductor; with uninsulated ferrule 2 0.25 … 2.5 mm² Strip length 2 9 … 10 mm / 0.35 … 0.39 inch Geometrical Data Width 18 mm / 0.71 inch Height 90 mm / 3.54 inch Depth from upper edge of DIN-rail 51 mm / 2.01 inch Mechanical Data Mounting type DIN-35 rail
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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Standards and specifications Conformity marking CE EMC immunity to interference EN 61000-6-2 EMC emission of interference EN 61000-6-3; EN 61000-6-4 Standards/Specifications UL 61010-2-201 Commercial data PU (SPU) 1 Stück Country of origin CN GTIN 4055144067200 Customs tariff number 85365005000 Approvals / Certificates Ex-Approvals Logo Approval Additional Approval Text Certificate name UL Underwriters Laboratories Inc. (HAZARDOUS LOCATIONS) UL 121201 E198726 UL-Approvals Logo Approval Additional Approval Text Certificate name UL Underwriters Laboratories Inc. (ORDINARY LOCATIONS) UL 61010-2-201 E175199 Optional accessories Marking accessories Marking strip Item no.: 2009-110 www.wago.com/2009-110
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.
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Item no.: 2009-110 Marking strips; for Smart Printer; on reel; not stretchable; plain; snap-on type; white www.wago.com/2009-110 Marker carrier Item no.: 2009-198 Adaptor; gray www.wago.com/2009-198 Tools Operating tool Item no.: 210-719 Operating tool; Blade: 2.5 x 0.4 mm; with a partially insulated shaft www.wago.com/210-719 Downloads Documentation Bid Text 789-665 X81 - Datei xml 10.4 kB Download 789-665 docx - Datei docx 29.4 kB Download CAD files CAD data 2D/3D Models 789-665 URL Download CAE data ZUKEN Portal 789-665 URL Download Environmental Product Compliance Compliance Search Environmental Product Compliance 789-665 Ground resistance signaling module; Ground fault alarm via digital output; Supply voltage: 24 VDC; Module width: 18 mm URL Download Installation Notes
Data sheet | Item number: 789-665 www.wago.com/789-665 Subject to changes. Please also observe the further product documentation! WAGO Corporation Germantown, WI 53022 Phone: 1-800-DIN-RAIL (346-7245) | Fax: (262) 255-6222 Email: info.us@wago.com | Web: www.wago.us Do you have any questions about our products? We are always happy to take your call at +49 (571) 887-44222.