YASKAWA HERMETICALLY SEALED CONTACT

Hermetically Sealed Contact Bestact Provides High Reliability, Maintenance-Free Operation and Minimized Size in Industrial/Control Systems. Bestact is a hermetically sealed power switching contact unit having an excellent reputation in a great number of actual applications as an interface element for control systems. Customer-proven features of Bestact include maximum reliability as well as unsurpassed environmental immunity and durability under adverse conditions such as high temperature, high humidity, existance of gas or vapor, vibration and surge. Large- and medium-capacity types are available...

ELEVATORS MEDICAL EQUIPMENT∗ HARBOR FACILITIES CRANE LOADING/UNLOADING AUTO INDUSTRIES TRANSIT VEHICLES DOOR INTERLOCK SW, AUTOMATIC TRAIN STOP ATS RELAY MACHINE TOOLS, GENERAL INDUSTRY AND FACILITIES WATER TREATMENT PLANTS ELECTRIC UTILITIES HYDRO, THERMAL, NUCLEAR∗ STEEL APPLICATION BLAST FURNACE, CASTING, ROLLING AND MATERIAL HANDLING OPERATIONS When Used in nuclear power facilities or medical 3 equipment, contact Yaskawa about the application methods.

BESTACT IMPROVES RELIABILITY FOR VARIOUS SYSTEMS AND EQUIPMENTS. FEATURES OF THE BESTACT SERIES OF PRODUCTS Bestact = Conventional Reed Switches + Mechanical Power Relays Bestact can perform the jobs of both conventional reed switches and power relays. Because a single Bestact replaces both, circuitry is simplified and entire circuit reliability rises significantly. A substantial cost savings can be achieved in that no contact protection snubbers/diodes is needed, minimal connections and reduced wiring circuitry are needed in the actual circuit design. Bestact can switch both AC and DC loads...

CONVENTIONAL METHOD RUN COMMAND DISPLAY INPUT INTERFACE NEW METHOD WITH BESTACT OPERATOR INTERFACE OPERATOR INTERFACE Type PBR, PLRC, PLWG REED RELAY AMPLIFIER INPUT RELAY OPTO COUPLED TRANSISTOR CALCULATION CONTROL AUXILIARY RELAY LOGIC AUXILIARY RELAY LOGIC OUTPUT INTERFACE PCB SOLIDSTATE AND REED RELAYS PROTECTIVE R-C SNUBBERS DIODES, VARISTORS PROTECTIVE R-C SNUBBERS DIODES, VARISTORS MAIN CIRCUIT DEVICE PROTECTIVE R-C SNUBBERS DIODES, VARISTORS FINAL CONTROL OUTPUT Type RIU, RI, RELAY RZDR, RB-3P PROTECTIVE R-C SNUBBERS DIODES, VARISTORS Note ARC PROTECTIVE DEVICES DETECTION AREA BESTACT...

Hermetically Sealed Contact Medium-Capacity (Element Type R25 Large-Capacity Element Type R15 Highly Reliable Contact Employing New Materials and lnnovative Designs such as Wiping and Hammering Action, Bifurcated Contact and Back-Stop Mechanism FEATURES 1. Sealed with an inert gas, ensuring freedom from aging and influences exerted by the external environment. 2. The twin contact and wiping effect assures outstanding contact reliability; failure rate is extremely low. 3. Quick action permits a larger make and break capacity and longer service life. 4. Can switch both AC and DC, permitting direct...

RATINGS AND SPECIFICATIONS Application Medium - Capacity Type Large - Capacity Type Contact Arrangement Rated Insulation Voltage Rated Continuous Current Contact Performance Rated Operational Current Maximum Breaking Current Maximum Making Current 5 Inductive Load Inductive Load Medium-capacity : L/R=40ms, Large-capacity : L/R=100ms Failure Rate Minimum Operational Power Ratings Withstand Voltage Across Contacts Insulation Resistance Operating Characteristics Power Frequency Drop-out Magnetmotive Force 4ms or less Bounce Time not included 5ms or less Bounce Time not included Operating Time Releasing...

ELECTRICAL LIFE Electrical life tabulated below is B10 value in a single test (at the condition shown in IEC PAS 62246-2-1) at Yaskawa. It is not a value in a multiple environment such as temperature and vibration. It is necessary to test actual products before initial operation. The circuit that drives coils adopts a direct making method which applies rated coil voltage (instant ON and instant OFF). In the circuit where the voltage applied to coils gradually increases or decreases, electrical life might decrease. 1. ELECTRICAL LIFE WHEN APPLYING TYPICAL LOADS 1. For inductive load, L/R = 1 ms...

PRODUCT TYPES LOAD CONTROL □ : Appliacable Medium-Capacity Type Breaking Waveform of Bestact Breaking Waveform of Conventional Relay Typical Waveforms at Breaking AC Inductive Loads

Medium-Capacity Type RI-D MC, -E25MC (Standard type) Type RI-B MC, -C MC Large-Capacity (Standard type) Type RI-B MHC, -C MHC (High insulation type) INPUT/OUTPUT RELAYS Highly Reliable Interface Relays for Programmable Controllers and Microcomputer Control Systems FEATURES 1. Assures outstanding reliability in circuits of 100VAC/DC or greater as well as in electronic component circuits. 2. Directly controls over a wide range from TTL electronic level to large magnetic contactors or DC solenoid valves. 3. No output relay board needed. 4. Quick action in 5ms or less. 5. Excellent insulation characteristics....

COIL SPECIFICATIONS (With polarity) Medium-Capacity Coil Resistance Rated Power Consumption W Maximum Allowable Voltage 170%E Approx. 1.2W 150%E Approx. 1.1W 220%E Approx. 3W 150%E Approx. 1.3W Operating Voltage Releasing Voltage 1. Values tabulated above indicate operations at ambient temperature of 20 . 2. Coil resistance values can vary by ±10%. 3. Maximum allowable voltage is the maximum value that can be applied to the coil in consideration of its thermal degradation and insulators in the relays. This is not a continuous allowable voltage. 4. Type RI- E and -C may erroneously operate if...

Coils have a polarity. Connect as shown below for proper operation. Refer to (2) for a polarity of the connecting terminals. (2) Terminal connections for DC loads THIS HOLE IS UNNECESSARY FOR TYPE RI-HH, REFER TO THE (7) Usage except for mounting on printed circuit boards Where not mounted on the printed circuit boards, mount and wire so as not to apply any force to the relay terminals. Avoid bending the ends of the terminals. (8) Making / Breaking ratings Contact welding and glass crack might occur when these relays are used beyond the range of rated current such as maximum making current and...