Remote I/O module, Digital signals, Output, Relay - UR20-4RO-SSR-255

Weidmüller UR20-4RO-SSR-255 is a 4-channel solid-state relay output module for the u-remote I/O system, using triac outputs to switch AC loads up to 255 V AC at 1 A per channel. Being solid state rather than electromechanical it has no contacts to wear, but it needs a minimum load of 50 mA per channel and is limited to 20 Hz switching, so it suits AC heaters, solenoids and small motors rather than fast pulsed duty.

• Channels: 4 digital outputs, solid-state relay (SSR / triac)
• Switching voltage: 255 V AC (UL: 277 V AC)
• Switching capacity per channel: 1 A maximum, 50 mA minimum
• Switching capacity per module: 4 A maximum
• Maximum switching frequency: 20 Hz
• Leakage current: < 1 mA
• Supply voltage: 24 V DC +20 % / −15 % via the system bus
• Current consumption: 8 mA typical from the system supply; < 15 mA from the power segment
• Isolation: 500 V DC between the current paths
• Connection: PUSH IN, 0.14 mm² to 1.5 mm² (AWG 26–16)
• Response time: 10 ms, both high and low transitions
• Diagnostics: Module diagnosis
• Operating temperature: −20 °C to +60 °C
• Dimensions (W x H x D): 11.5 x 120 x 76 mm
• Protection degree: IP20
• Approvals: cULus E141197, cULusEX E223527, RoHS compliant

TROAPC's standard warranty covers all products. A 5-year warranty applies to applicable IP Enclosures products. Refer to Refunds & Returns for more information.