157-23B200

GENERAL PURPOSE RELAY TYPE 157     FEATURES: • The Type 157 relay isaruggedpower driver of f eringsuperior 3/ 16”through air and3/ 8”over-surf ace spacing. • Aninterlockedf rame andcontact blockprevent contact misalignment duringplug-in. • Openor dust coveredavailable with indicator lampsandpush-to-operate buttons. • A magnetic latchingversionprovidesaunique switchable core which cannot be f alsely latched. • All MidtexcatalogType 157 relayshave UL & CSA Recognitionasmotor controllersthrough 600 VAC • They provide through air spacingof3/ 16”minimum andover-surf ace spacingof3/ 8”minimum andare recognizedf or 1/ 2hpmotor controller applicationsat 240/ 480/ 600 VAC (1/ 3hpat 120 VAC). • Chassismountedopenrelaysmust employ 1/ 32”additional insulationbetweenmountingsurf ace andrelay to insure 1/ 2”over-surf ace andthrough air to the mountingsurf ace. • Socketsf or the 157 relaysare constructedto meet UL requirementsf or these ratings. • UL File E38802CSA LR54109
    UL & CSA Recogni ti on Rati ng Voltage Ratings 1/8”Fine Sliver (gold flash) 5 amp 5 amp,28 VDC/ 120/240 VAC,80% pf 2 amp 480/600 VAC,80% pf 1/8 hp 120 VAC 1/4 hp 240 VAC 2 amp 7.2 amp in rush,24 VAC (SP devices) Pick-up Voltage 3/16”Silver Cadmium Oxide 10 amp 10 amp,28 VDC/ 120/240 VAC,80% pf 1/3 hp 120 VAC 1/2 hp 277/240/480/600 VAC 36 LRA,8.5 FLA,18VDC 3 amp 480/600 VAC,80% pf 10 amp 277VAC resistive Material -100 -200 -300 -700 -3MO
   15 amp 10 amp 3 amp 1/3 hp 1/2 hp 600w Tungsten 1/8”Fine Sliver Gold Diffused 5 amp,28 VDC/ 120/240 VAC,80% pf 2 amp 480/600 VAC,80% pf 1/8 hp 120 VAC 1/4 hp 240 VAC 2 amp 7.2 amp in rush,24 VAC (SP devices) Mag Blowout 1 Form X 2 Form A 2 Form C (See Note) 277/240/120 VAC 28 VDC 480/600 VAC 120 VAC 240/480/600 VAC 120/240 VAC AC–85% ofnominal DC–75% ofnominal Rated f or continuousduty operation at 25% overvoltage 15 g’ s,11±1mS (non-operating test, no mechanical damage) Duty Cycle Shock 0.1”DA or 10g’ s,10 to 55 Hz (operating test,no contact chatter) Vibration PowerRatings* Nominal Max. Continuous 3/16”Silver Cadmium Oxide 15 amp (UL on 1 & 2PDT only) 6 to 240 VAC 50/60 Hz 5 to 110 VDC 1 & 2 Pole AC 3 Pole AC DC 1.7 VA 2.7 VA 2.0 VA 3.1 VA 1.2W 1.9 W Tem perature Rise* 3 Pol e AC DC 1 & 2 Pole AC Open Enc. Open Enc. Open Enc. Nominal Voltage 40°C 60°C 35°C 35°C 45°C 45°C 55°C 85°C 50°C 25% overvoltage 55°C 65°C 75°C *60 Hz operation Increase values 20% f or 50 Hz operation.
          Nom inalVoltage 12A @ 150 VDC 7A @ 150 VDC 5A @ 150 VDC Note: For Mag Blowout positive contacts are 7 and 9. Negative contacts are 1,3,4 and 6.                  V D C 5 6 12 24 48 110 V A C 6 12 24 120 240 All ratingsat 25°C ambient Desi gn and Construction Recognized by UL f or motor controllers up to 600 VAC in accordance with UL Standard 508,Industrial Control Equipment. Optional f eatures include manual push-to-test button and indicator lamp. I nsul ati on Materi al-High quality phenolic Resistance (Ohm s±10% ) 20 32 120 470 1800 10000 1 & 2PDT 6.0 21 75 2250 9100 3PDT 4.2 18 72 1700 7200 W ei ght(approximate)-2.3 ounces(64 grams)— open relay 3.0 ounces(84 grams)— enclosed relay Marki ng Midtex name,part number,nominal voltage,and terminal identif ication are standard. Customer marking optional. Ini ti alContactResistance–50 milliohmsmax. Libertyville IL (847) 680-7400 FAX (847) 680-8169 www.ciitech.com 15 TYPE 157 Rel ayType 157             Enclosure andTerm inals 1–Open,Solder/Plug-in/.187 Quick Connect 2–Plain Cover,Solder/Plug-in/.187 Quick Connect 3–Flanged Cover,Solder/.187 Quick Connect 4–Plain Cover with End Mounting Bracket,Solder/Plug-in/.187 Quick Connect 9–Plain Cover,P.C. Terminal 0–Special (Including top flange) Coi l ContactArr. 1–SPDT 2–2PDT 3–3PDT 4–1 Form A 5–1 Form B 6–2 Form A 7–2 Form B 8–1 Form X 9–1 Form Y 0–Special Contacts E–5 VDC A–6 VDC B–12 VDC C–24 VDC D–48 VDC F–110 VDC N–6 VAC P–12 VAC Q–24 VAC T–120 VAC U–240 VAC S–Special 1–1/8”Fine Silver Gold Flash 2–3/16”Silver Cadmium Oxide (10 Amp) 3–3/16”Silver Cadmium Oxide (15 Amp) 7–1/8”Fine Silver Gold Diffused 0–Special Standard orSpeci al 00–Standard C0–Push Button Actuator D0–Diode across Coil F0–Class“F”Coil L0–Lamp Across Coil LC–Lamp & Push Button M0–Mag Blowout 09–PC Terminal without Cover. Use 9 in first digit. A1-Z9–Special *Top Flange avail.–Consult Factory Example:157-23C200 is a Type 157 relay,plain cover,solder/plug-in/.187 quick connect terminals 3 pole double throw contacts,24VDC coil, 3/16”diameter Silver Cadmium Oxide contacts,ofcompletely standard construction. Stock item s: 157-22B200,157-22C200,157-22C2L0,157-22F200, 157-22Q200,157-22Q2LC,157-22T200,157-22T2L0,157-22U200, 157-23B200,157-23C200,157-23C2L0,157-23Q200,157-23Q2L0, 157-23T200,157-23T2L0,157-23T2LC,157-32B200,157-32C200, 157-32Q200,157-32T200,157-33B200,157-33C200,157-33Q200, 157-33T200.  
      Operating** Minim um 1 & 2 pole AC AC 3 pole 1,2,3,pole DC –45°C –45°C –45°C Maxim um Open Enclosed +70°C +60°C +80°C +60°C +45°C +70°C Storage –65°C to +100°C **50/ 60 Hzoperation,based on 105°C limit.             Di el ectri c Breakdown Greater than 1200 VAC,RMS 60 Hzacrossopen contacts Greater than 2500 VAC,RMS 60 Hzall other mutually insulated elements Ti mi ng Operate time— 15 mS nominal,20 mS maximum Release time— 6 mS nominal,10 mS maximum (Nominal voltage,no coilssuppression,DC relaysonly) I nsul ati on Resi stance 1000 megohmsminimum at 500 VDC Li fe Expectancy Mechancial— 10 million operations Electrical— 100, 000 operationsat rated load     
  Open Model157-3 Model157-1 Model157-4 DustCover Model157-2 Inches (Millimeters) 16 Libertyville IL (847) 680-7400 FAX (847) 680-8169 www.ciitech.com TYPE 157       Pri nted Ci rui tTerm i nal Solder/ Plug In .187 Qui ck Connect Inches (Millimeters) Mates with .187”UL standard quick connect ternimal also suitable f or solder connection. Model 157-1, -2, -3, -4 Printed Circuit Terminal For direct relay to PCB mounting. Model 157-9
1 Form C (SPDT)     2 Form C (DPDT) 3 Form C (3PDT) Ref erence Only   
 Bottom View Ref erence Only See RELAY SOCKETS on page 51. See HOLD DOW N SPRINGS on page 53. Libertyville IL (847) 680-7400 FAX (847) 680-8169 www.ciitech.com 17