Description ZSB-409A Intrinsically Safe Zener Safety Barrier The ZSB-409A Intrinsically Safe Zener Safety Barrier is a compact, multi-channel safety interface designed to enable the safe connection of intrinsically safe field devices to non-intrinsically safe control equipment. Engineered for hazardous and explosive environments, this barrier is specifically designed for use with Migatron intrinsically safe ultrasonic sensors, including the RPS-409A-IS, RPS-409A-IS2, and RPS-409A-IS3 series. When installed in accordance with the control drawing and used with proper grounding, the ZSB-409A provides intrinsic safety protection for hazardous gas and dust environments classified as Zone 0, 1, 2, 20, 21, or 22 under ATEX and IECEx standards, as well as Class I, II, or III hazardous locations under UL and cUL requirements. Its compact DIN-rail-mounted design allows for easy integration inside control panels and safe-area enclosures. Key Features ✅ 3-channel intrinsically safe zener barrier for hazardous area installations ✅ One 24 V DC channel and two 10 V DC channels in a single compact unit ✅ Designed for use with Migatron RPS-409A series intrinsically safe ultrasonic sensors ✅ Limits electrical energy to intrinsically safe levels for field devices ✅ DC positive polarity configuration ✅ DIN-rail mountable for control cabinet installation ✅ Approved for gas and dust hazardous environments when installed per the control drawing ZSB-409A Technical Specifications: SpecificationDetails Product TypeIntrinsically Safe Zener Safety Barrier Number of Channels3 channels Channel Configuration1 × 24 V DC channel, 2 × 10 V DC channels Maximum Supply Voltage25.5 V DC (24 V channel), 10.4 V DC (10 V channels) Fuse Rating50 mA per channel PolarityDC positive Operating Temperature-40 °C to 60 °C (-40 °F to 140 °F) Humidity0–95% non-condensing Housing MaterialPolyamide Protection RatingIP20 (when installed in appropriate enclosure) Mounting35 mm DIN rail Dimensions (in)3.90 (L) × 0.89 (W) × 4.51 (H) Weight (lbs)0.60 Installation LocationSafe area / control cabinet only Compatible DevicesRPS-409A-IS, RPS-409A-IS2, RPS-409A-IS3 Certifications & Compliance �� Intrinsically Safe Design – Limits energy to intrinsically safe levels when installed per the control drawing �� ATEX Certified – DEMKO 13 ATEX 1214149X Approved for hazardous gas and dust environments classified as Zone 0, 1, 2, 20, 21, and 22 �� IECEx Certified– IECEx UL 13.0030X Approved for global hazardous area installations �� UL / cUL Certified – UL File # E226209 Approved for Class I, II, and III hazardous locations in North America �� Download Datasheet ��Control Drawing ZSB-409A ��User Manual ZSB-409A Applications of ZSB-409A �� Intrinsically safe ultrasonic sensor installations �� Hazardous gas and dust environments �� Control panel and cabinet installations �� Oil & gas, mining, petroleum, and chemical facilities �� Industrial process control systems What’s in the Box? �� 1x ZSB-409A Intrinsically Safe Zener Safety Barrier �� Documentation Kit Ordering & Shipping Details �� Lead Time: 1 week �� Shipping Terms: Worldwide shipping available �� Payment Options: Credit Card, PayPal, Net 30 Terms (subject to approval) FAQs Is the ZSB-409A required for Migatron intrinsically safe sensors? Yes. The ZSB-409A is designed to provide intrinsic safety protection and is required when installing compatible Migatron intrinsically safe ultrasonic sensors in hazardous areas. Can the ZSB-409A be installed in a hazardous area? No. The ZSB-409A must be installed in a safe area or suitable enclosure in accordance with the control drawing and local electrical codes. Which sensors are compatible with the ZSB-409A? The ZSB-409A is compatible with Migatron RPS-409A-IS, RPS-409A-IS2, and RPS-409A-IS3 ultrasonic sensors.
