Surge Absorber Units “ZNR” Surge Absorber Units The Surge Absorber Unit contains Y, Δ or p connected ZNRs surge absorbers (and, if necessary, a circuit breaker) in a box. These Surge Absorber Units are designed for surge protection of industrial electric equipment where reliability is essential. ● RoHS compliant Recommended Applications Surge Protection of ● Railway/traffic signal control systems ● Distribution line control systems ● Broadcasting systems, communication systems ● Measuring instruments ● Controllers of low voltage distribution line ● Controllers of waterworks Note : Ask our factory for Product Specification before use. ■ As for Minimum Quantity / Packing Unit Please see Related Information Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Jan. 2015 Surge Absorber Units ZNR Surge Absorber Units Circuits Maximum Application Peak Current Rated Voltage Single-phase two-wire system Dim. Part No. Connection ERZA1P251ASA AC 100/ 120 V ✽✽ ERZA1P251AR 5000 A For Power Source 1 A 7 AC 400/ 440 V B 7 Part No. Dim. Connection B ERZA4P251ASA 2 ERZA2P501AS B 2 7 AC 200/ ERZA1E471BS 220/240 V AC 400/ 440 V B 7 ERZA3P501AS ERZA3P102AS ERZA2E271AS ERZA2E471AS ERZA2E471BS 3 B 3 4 B 8 ERZA3E471AS B 9 B 9 B 8 ERZA3E471BS ERZA3E102BS 7 4 ERZA4P102AS 4 B 10 B ERZA4E471AS 10 B ERZA4E102AS 10 B ERZA4E271BS 8 B B ERZA4P501AS ERZA4E271AS 8 ERZA3E102AS ERZA2E271BS B B 7 B B ERZA1E102BS B 1 AC 200/ ERZA1E471ASA 220/240 V ERZA1E271BS Dim. Connection 6 A ERZA1E102AS ERZA2P251ASA Part No. C B ERZA1E271ASA Connection Three-phase four-wire system 5 AC 400/ 440 V ERZA1P102AS Dim. Part No. Three-phase three-wire system C A AC 100/ 120 V 50000 A 1 AC 200/ ERZA1P501AS 220/240 V AC 100/ 120 V 20000 A ✽ ERZA1P251BC A Single-phase three-wire system B 9 B 9 10 B ERZA4E471BS 10 B ERZA4E102BS 10 ✽ p connection with inductors (specified current: 2 A) ✽✽ p connection with resistors (specified current: 2 A) 5000 A Rated Voltage Part No. DC 12 V ERZA5F220AC DC 24 V ERZA5F390AC DC 48 V ERZA5F680AC DC 80 V ERZA5F101AC Dimensions Coil: 1 mH max. Max. continuous current: 0.6 A D DC 100 V ERZA5F201ACA For signal system (Line to Line use only) 5000 A DC 12 V ERZA5F220BC DC 24 V ERZA5F390BC DC 48 V ERZA5F680BC DC 80 V ERZA5F101BC DC 100 V ERZA5F201BC Connection Equipment For signal system (Line to Line and Line to Ground use) Maximum Peak Current Type D (other : Type E) Coil: 1 mH max. Max. continuous current: 0.6 A Equipment Application C Type D (other : Type E) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Jan. 2015 Surge Absorber Units 250 300 Dimensions in mm (not to scale) 300 120 120 400 (B) (A) 3-f 6 160 135 Mounting pitch 160 Mounting pitch 135 3-f 6 83 83 Mounting pitch 85 Mounting pitch 85 105 105 (C) (D) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Jan. 2015 Surge Absorber Units Circuit Diagrams L1 N L2 L1 L2 L1 N L2 L1 L2 E Equipment E Equipment (2) (1) R S T N R S T N E R S T R S T E Equipment Equipment (3) Resistance : 0.3 Ω Inductance : 1 mH max. L1 Equipment L2 (4) L1 Equipment L2 Max. continuous current : 2 A Max. continuous current : 2 A (5) (6) L1 L2 L1 N L2 L1 L2 E Equipment Equipment (7) L1 N L2 E (8) R S T N R S T Equipment R S T N E R S T E (9) Equipment (10) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Jan. 2015