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HomeMy WebLinkAboutTransfer Switch SpecsKOHLER. Model: RXT Automatic Transfer Switch 100-400 Amps 09001 4 KOHLER. Model RXT Automatic Transfer Switch The Model RXT automatic transfer switch is designed for use NATIONALLY REG457ERED only with Kohlerb generator sets equipped with RDC2 or DC2 generator set/transfer switch controls. The transfer switch operation is controlled by the RDC2/DC2 controller. Covers have been removed for illustration. Available Models • 100, 200, and 400 amp standard and service entrance models are available. • 150 and 300 amp service entrance models are also available. • Combined interface/load management board is available on single-phase standard and service entrance models. (Not available on 3-phase or load center models.) • 100 amp standard single-phase models are available with or without a 16-space load center. Up to 8 tandem breakers can be used for a total of 24 circuits. • 100amp standard single phase model with a 12-space load center and a NEMA 1 enclosure is available as a standalone non-corlfigurable spec (GM85273-SAJ. • See page 7 for more information. Standard Features • Allows utility voltage display on the RDC2/DC2 generator set/transfer switch controller, available exclusively on Kohle& residential and light commercial generator sets • UL listed o UL 1008 listed, file #E58162 o Models with load centers use UL.67 listed components • CSA certification, file #LR58301, is available for: o Standard ATS without load center (single and three-phase) o Service entrance ATS 100 and 200 amp models • Corrosion -resistant NEMA 3R aluminum enclosure o Padlockable o Approved for indoor or outdoor installation o ANSI 49 gray • NEMA 1 enclosure available on 100 amp load center models • Contactor electrically and mechanically interlocked • Double throw inherently interlocked design • Contactor manually operable for maintenance purposes • Silver alloy main contacts • Transfer switches are 100% equipment rated and can be applied at the rated current without derating (non -service entrance models) • Service entrance models include disconnect circuit breaker on the utility (normal) source side (80% rated) • Five-year limited warranty Standard Interface Board • Standard interface hoard connects to the Model RDC2 or DC2 generator set/transfer switch controller. • Includes a load control contact that provides a 5 minute time delay for startup of selected loads after transfer to the emergency source. Use for large motor loads. Combined Interface/ Load Management Board • Optional combined interface/load management board replaces the standard interface board and connects to the Model RDC2 or DC2 generator set/transfer switch controller. • The combined board is available on single-phase standard and service entrance models. (Not available on 3-phase or load center models.) • The combined board automatically manages up to six residential loads: o Up to four customer -supplied power relay modules can be connected for management of non -essential secondary loads. a Two HVAC relays are included for control of two independent air conditioner loads. ( 11-140 (Model RXT Automatic Transfer Switch) 3/20g Pagel Specifications Standard Interface Board Controller interface connections A and B #20 AWG shielded twisted -pair Belden 9402 or 8762 or equivalen# Controller interface connections PWR and COM #12-20 AWG (see ATS Installation Manual) Load control contact rating 10 A @ 250 VAC Load control connections #12-18 AWG Note: For combined interface/load management board specifications, see page 3. Environmental Specifications Operating temperature - 20°0ic 70°C (- 4°Fto 158°Fj Storage temperature - 40°C to 85°C (- 40°F to 185-F) Humidity 5 to 95% noncondensing Codes and Standards The ATS meets or exceeds the requirements of the following specifications: • Underwriters Laboratories UL 1008, Standard for Automatic Transfer Switches for Use in Emergency Systems, file # E58962 • Underwriters Laboratories UL 508, Standard for Industrial Control Equipment • CSA certification available, file # LR58301 (not available for 150, 300, or 400 amp service entrance or 100 amp load center models), Must be selected when the transfer switch is ordered. • NFPA 70, National Electrical Code • NFPA 110, Emergency and Standby Power Systems • NEMA Standard IC10-1993, AC Automatic Transfer Switches Cable Sizes AL/CU UL-Listed Solderiess Screw -Type Terminals for External Power Connections Switch Size, Range of Wire Sizes, cu/AI Amps Switch Phases Normal and Emergency Load Neutral Ground Standard 1 (1) #14 - 1/0 AWG (1) #14 - 110 AWG (5) #12 to 250 KCMIL (Cu) or (5) #10 to 250 KCMIL (Al) 12- or 16 space load center 1 (1) #14- i/0 AWG led per cucuit breaker circuit breaker (26) #4 - 14 AWG or (2) #14 - 110 AWG or (9) #6 - #14 AWG (NEMA 1) (1)#6-2/0AWG (4)#14- 1/0 AWG 100 16-space load center 1 (1) #14 -110 AWG per customer -supplied (26) #4 - 14 AWG or (NEMA 3R) circuit breaker (2) #1) - 1/0 AWG or (1} 2/0 AWG Service Entrance 1 Normal: (1) #12 - 210 AWG Emerg: {1) #14 110 AWG (1) #14- 1/0 AWG (5) #12 to 250 KCMIL (Cu) or (5) #10 to 260 KCMIL (AI) 3-Phase 3 (1) #14 -1/0 AWG (1) #14 -1/0 AWG (3) #4 AWG -600 KCMIL (4) #14-1/0 AWG (6) 1/0 AWG - 250 KCMIL (9) #14 - #6 AWG 150 200 Service Entrance 1 Normal: (1) #4 - 304 KCMIL Eme rg: (1) #6 - 250 KCMIL (1) #6-250 KCMIL (5) #12 to 250 KCMIL (Cu) or (5) #10 to 250 KCMIL (AI) Standard 1 200 (1) #6 AWG - 250 KCMIL (1) #6- 250 KCMIL (5) #12 to 250 KCMIL (Cu) or (9) #14- #4 AWG 3-Phase 3 (5) #10 to 250 KCMIL (AI) (4) #14 - 1/0 AWG 300 Service i Normal:: (1) #1 - 600 KCMIL 400 Entrance 1 or (2) #1 - 250 KCMIL (2) #6 - 250 KCMIL {S) #4AWG - 604 KCIUIIL (6) #6 310 AWG Emerg: (2) #6 - 250 KCMIL (6) 1/0 AWG -250 KCMIL Standard 1 3-pole 3 (2) #6--250 KCMIL (2) #6-250 KCMIL 400 208-240 V (3) #4 AWG - 600 KCMIL (6) 110 AWG - 250 KCMIL (6) #6 —3/0 AWG 3 or 4 pole (1) #4 - 600 KCMIL (1) #4 - 604 KCMIL 150 480 V 3 (2) 1/0 - 250 KCMIL (2) 1/D - KCMIL noie: Data is subject to change. Refer to the transfer switch dimension drawings and wiring diagrams for planning and installation. Gig -tap (Model FUCTAutornatic'rransterSwitch) 3/20g Paget Optional Combined Interface/Load Management Board The RXT transfer switch is available with either a standard interface board or a combined interface/load management board. The combined board allows load management as described below. Load Management • The combined load management board disconnects non -critical loads to prevent generator overload, in compliance with NEG. • The combined load management board monitors generator current and frequency to determine when to add or shed loads. This monitoring prevents frequency drops that can damage valuable electronics like computers and televisions. • Load management allows the use of a smaller generator set. Operation • Loads are automatically added or shed based on generator capacity. • The load control system uses dynamic logic to prevent shedding important loads unnecessarily when air conditioning, refrigerator, or water pump motors start (patent pending). • The load management board and generator communicate to provide smart power management. The time to shed loads decreases as each load is shed to quickly adapt to critical power requirements. • Load shed power level and frequency setpoints can be adjusted using a personal computer (laptop) and Kohler@ SiteTech- software, which is only available to Kohler - authorized distributors and dealers. Load Shed connection Pilot Relays* WVAC Relays (qty. 2) nBUS Communication and Power Connections to the RDC2/DC2 controller Priority Setting • Loads are added and shed according to their priority. Load 1 is the top priority, which is added first and shed last. Load 6 is the lowest priority. • Less critical loads can be turned off automatically when essential appliances are running. • Load priorities are hard -wired at installation. Viewing Load Shed Outputs with OnCue@ Plus • Use Kohler's OnCuea Plus Generator Management System (sold separately) to view load status (On or Off) for loads connected to the load shed relays. • Use OnCue(b Plus to remotely monitor when loads We shed or added. • The load shed outputs can be labeled in OnCue@ Plus. Current Transformer • The combined load management board option includes a 400 amp current transfomer (CT) for load monitoring. • A larger diameter CT is available for applications that require larger cables. • A 500 amp CT is available for use with a 60RCL generator. • See the table below for current transformer specifications and optional kit numbers. 125VAC, 10 A total (general purpose) 124VAC, 125VA (pilot duty) 125VAC, 10 A (general purpose) 120VAC, 125VA (pilot duty) 0.5 A @ 12 VDC Connection #12- 20 AWG #12- 20 AWG Use Belden #9402 or equivalent 20 AWG shielded, twisted -pair communications cable t * Four (4) pilot relays are provided for customer -supplied normally closed load -switching contactors/relays. The combination of four load relay outputs cannot exceed 10 amps total current draw. Kohler® power relay modules are recommended. For long distances, use an equivalent shielded, twisted -pair cable for FiBUS connections and individual 12-20 AWG wires (qty. 2) for power connections. Current Transformer Specifications Ratio Outer Diameter Inner Diameter Service Part (Amps:VAC) mm (in,) mm (in.) Number Sales Kit Pairs Number 400:3 63.5 (2.5) 28.7 (1.13) GM83929 N/A 400:3 111.8 (4.4) 57.2 (2.26) GM17250 GM17250-KPl-QS 500:3 171.5 (6.75) 108.0 (4.25) GM60264 GM17250-KP2-QS _CT Availability Included with combined board Sold Separately Sold Separately (use with 60RCL) G11-149 (Model RXT fwtomatic Trarmfar S,Mlch) 3f2Qg Page 3 Withstand and Close -On Ratings (WCR) Service Entrance Transfer Switch Ratings The service entrance transfer switch is factory -equipped with a normal source disconnect circuit breaker. Suitable for the control of motors, electric discharge lamps, tungsten filament lamps and electric heating equipment where the sum of motor full -load ampere ratings and the ampere ratings of other loads do not exceed the ampere rating of the switch and the tungsten load does not exceed 30 percent of switch rating. Switch Rating, Amps * WCR, RNIS Symmetrical Amps at 240 VAC 100, 150, 200 22,000 300,400 35,000 * Continuous load current not to exceed 80% of switch rating. Contactor Ratings with Coordinated Circuit Breakers Single-phase transfer switches are UL listed at 240 VAC maximum, Three-phase transfer switches are rated at 480 VAC maximum. The following table lists contactor withstand current ratings (WCR) for 100- 400 ampere non -service entrance rated switches with specific manufacturer's circuit breakers per UL and Canadian safety standards. Suitable for the control of motors, electric discharge lamps, tungsten filament lamps and electric heating equipment where the sum of motor full -load ampere ratings and the ampere ratings of other loads do not exceed the ampere rating of the switch and the tungsten load does not exceed 30 percent of switch rating. The transfer switch is rated for use on a circuit capable of delivering not more than the RMS symmetrical amperes maximum as shown in the tables below, but no greater than the interrupting capacity of the selected breaker. WCR Ratings with Specific Manufacturer's Molded -Case Circuit Breakers Switch Rating, Amps Vottage, max, Number of Poles/ Phases WCR, RMS Symmetrical Amps Manufacturer Type or Class Maximum Size, Amps 100 240 2 pole/ 1 phase 10,000 Any Breaker * Any Breaker (0.025 seconds max.) — 200 240 1 pphase 10,000 Any Breaker * Any Breaker (0.025 seconds max.) -.- 100 200 480 3 pole/ 3 phase 4 pole/ 3 phase 30,000 Eaton FCL 100 JGS, JGH, JGC, JGU, JGX, JBD, JD, HJD, JDC, LCL, LCLA 250 LDC, CLDC, KDB, KID, HKO, KDC, LID, CLD, HLD, CHLD 400 I TE/Slemen5 CEDE, HED4, HED6 125 CFD6, F06A, FXD6, HFD6, HFXD6, HHFD6, HHFXD6 2$0 CJDB 400 General Electric SEL, SEP, THLC1, PE E, PE- N, PE H, PE L - 150 THLC2 225 SFH, SFL, SFP, PE E. PE N, PE�_H, PE L 250 SGH, SGL, SGP, FGN, FGH, FGL, FGP PG, E, PG_N, PG_H. PG_L, PG_P 400 Schneider HG, HJ, HL, HR 150 JJ, JL, JR 254 LG, LJ, ILL, LR 400 * For higher WCR values, contact the factory for additional specific breaker ratings. G14-140 (Model IIXT Automatic Transfer Switch) 312)g Pag04 WCR Ratings with Specific Manufacturer's Molded -Case Circuit Breakers Switch Number WCR, RMS Rating, Voltage, of Poles/ Symmetrical Amps max, Phases Amps Manufacturer Type or Close Ma Maximum MaAmps ABB T5, T6 600 CHKD, CKD, DK, HKD, KD, KDB, KDC, LATRIPAC, LCL 400 Eaton GHLD, CLD, CLDC, HLD, LD, LDB, LDC gap HMDL, MDL, NB TFiI-PAC 800 General Electric FGH, FGL, FGN, FGP, SGHA 600 10J136, HHJD6, HHJXD6, HJD6, HJGA, HJXD6, JD6, JXD2, JXD6, SCJD6, SHJD6, SJD6, NJGA, 400 300 400 24Q 2 pole/ 1 phase 35,000 LJGA 3 Siemens CLD, HHLD, HHLXD, HLD, HLGA, HLKD, LD, LLGA, LXD, NLGA, SCLO, SHLD, SLD 600 CMD, HLMD, HLMXD, HMD, HMG, HMXD, LMD, LMG, LMXD, MD, MXD, NMG, SCMD, SHMD, 800 SMD Square D LA, LC, LE, LH, L!, LX, LXI 400 DG DJ OL, LC, LE, Ll, LX, LXI soa Merlin Gerin CJ400H, CJ400L, CJ40ON 400 CJ600H,CJ600N 600 Schneider LJ, LL, LR 600 3 phase 3 phase SEL, SEP, PE N, PE H, PE L 150 240 4 pole/ 65,000 General Electric SFL, SFP, PE N. PE H, PE__L 250 3 phase SGL, SGP 400 SGL, SGP, FGL, FGP 600 HJD, JDC, JGC, JGH, JGLI, JGX 250 CHLD4, CL.D, HLD4, CLDC, LDC, KDC, HKD, 400 I Eaton CHMDL4, CMDL4 GHLD6, HDL6, CHMDL6, CMDL6, CLDC, CLD6, 600 LDC6,CLDC6 CHMDL8, HMDLB, MDL6, CMDL8 800 6FD6, HFD6, HFXD6, HHFD6, HHFXDB 250 400 ITE/Siemens GJD6 400 3 pole/ CLD6, HHLD6, HHLXD6, HLD6, HLXD6 600 480 3 phase 50,000 CMD6, MD6, HMD6, HMXD6, MXD6 800 4 pole/ SEL, SEP, PE N, PE H, PE L 150 3 phase SFL, SFP, PE N, PE H, PE_L 250 General Electric SGL, SGP 400 FGL, FGP, SGL, SGP, PG-H, PG L, PG N, 600 PG_I' - - HJ, HL, FIR 160 Schneider JJ, JL, JR 250 LJ, LL, LR 600 MJ 800 100,000 General Electric PG H, PG_L, PG P AM G11440 (Model RXT Automatic Transfer Switch) WOg Page 6 Dimensions and Weights Note: Always use the transfer switch dimension drawing for planning and installation. Weights and dimensions may vary for different configurations. See the Operation/Installation Manual or your local distributor for dimension drawings. Transfer switch weights and dimensions shown in the table do not include packaging. To estimate the shipping weight, add 3 kg (5 lbs.) or 10% (whichever is larger) to the weight shown. Amps Description Dimensions !i x W x D mm m. Shipping Weight -F kg (1114 Dimension Drawin Single phase 623 x 335 x 180 (24.5 x 13.2 x 7.1) 7 (15) ADV-8688 With 12-space load center (NEMA 1) 610 x 330 x 154 (24,0 x 13.0 x 6.0) 12 (26) ADV-9186 With 16-space load center (NEMA 1) 610 x 330 x 154 (24.0 x 13.0 x 6.0) 12 (26) ADV-9187 100 With 1B-space load center 614 x 335 x 180 (24.2 x 13.2 x 7.1) 8 18) ADV-9188 Three phase 682 x 462 x 228 (26.8 x 18.2 x 9-0) 14 (30) ADV 8689 Service entrance (ASE) 734 x 416 x 175 (28.9 x 16.4 x 6.9) 10 (22) ADV-9046 Service entrance (CSE) 754 x 416 x 175 (29.7 x 16.4 x 6.9) 14 (30) ADV-8797 150 Service entrance (ASE) 734 x 416 x 175 (28.9 x 16.4 x 6,9) 12 (26) ADV-9046 Service entrance (ASE) 734 x 416 x 175 (28.9 x 16.4.x 6.9) 12 (26) ADV-9046 200 Service entrance (CSE) 754 x 416 x 175 (29.7 x 16.4 x 6.9) 16 (06) ADV-8798 Single phase 623 x 335 x 180 (24.5 x 13.2 x 7,1) 7 (15) ADV-8688 Three phase 682 x 462 x 228 (26.8 x 18.2 x 9.0 ) 14 (30) ADV-8689 300 Service entrance 1075 x 559 x 329 (42.3 x 22.0 x 12.9) 46 (101) ADV-8694 Single phase 1067 x 559 x 329 (42.0 x 22.0 x 12.9) 55 (120) ADV-8691 3-Pole1208- 240 volts 1067 x 559 x 329 (42.0 x 22.0 x 12.9) 41 (90) ADV-8692 400 3-Pole/480 volts 1222 x 610 x 343 (48.1 x 24.0 x 13.5) 59 (130) ADV-8693 4-Pole 1222 x 610 x 343 (48.1 x 24.0 x 13.5) 59 (130) ADV-8693 Service entrance 1075 x 559 x 329 (42.3 x 22.) x 12.9) 46 (101) ADV-8694 t Depth does not include the padlock hasp on the front of the enclosure. t Transfer switch weights are approximate and do not include packaging. Note: Enclosures are type NEMA 3R except as noted. G11-140 (Model RXT Automatic Twsfet Switch) 3/2og Page 6 Accessories ❑ Auxiliary position -indicating contacts • One closed on normal position and one closed on emergency position • Form C contacts rated 15 A @ 250 VAC ❑ Power relay modules • 50 amp DPST power relay mounted in a NEMA type 3R enclosure • Use up to four modules with the combined interlace/load management board • UL/CUL listed • Dimensions: 172 x 233 x 92 mm (6.8 x 9.2 x 3.6 in.) • For more information, see specification sheet G6-143 ❑ Status indicator kit for standard interface board • LEDs indicate normal and emergency source availability and contactor position • Mounts on the outside of the FiXT enclosure • View transfer switch status without removing enclosure cover ❑ Status indicator kit for combined interface/load management board • LEDs indicate normal and emergency source availability and contactor position • Dual color LEDs for each load indicate load status (powered or shed) and flash during a test • Load shed test button allows the operator to cycle the load shed relays in order of priority (when generator is in RUN mode) • Mounts on the outside of the RXT enclosure • View transfer switch and load status without removing enclosure cover • An overhang on the enclosure protects the indicator panel and ribbon cable opening • Dimensions: 183 mm x 42 mm (7.20 in. x 1.65 in.) • Connects to the combined interface/load management board only • For more information on the status indicator kit, see specification sheet G11-123 • An overhang on the enclosure protects the indicator ❑ Auxiliary circuit breaker (service entrance models only) panel and ribbon cable opening • 15 amp single -pole type QO circuit breaker • Dimensions: 92 mm x 42 mm (3.62 in. x 1.65 in.) • Connects to the standard interface board only •Mounts on a bracket inside the enclosure • For more information on the status indicator kit, see specification sheet G11-123 Available Models All Model RXT transfer switches are standard -transition 60 Hz automatic transfer switches. Letters in parentheses refer to the model designation code described on the last page. Description Am s Connections VaFtages poles phases WCR § RMS Symmetrical Amps 208 (C) 240 (F) 480 (M) Standard (A) • 2 (N) 1 10,000 Standard, with 16-space load center (8) ¶ • 2 (N) 1 10,000 100 Standard, with 12-space load center ** • 2 (N) 1 10,000 Service entrance (AGE, GSE) • 2 (N) 1 22,000 Standard, 3-phase (A) + • • 3 (f) or M 3 30,000 150 Service entrance (ASE) • 2 (N) 1 22,000 Standard (A) • 2 (N) 1 10,000 20o Service entrance (ASE, CSE) • 2 (N) 1 22,000 ! Standard, 3-phase (A) • • • 3 m or 4 M 3 30,000 300 Service entrance (ASE) • 2 (N) 1 35,000 Standard (A) • 2 (N) 1 50,000 400 Service entrance (ASE) • 2 (N) i 35,000 Standard, 3-phase (A) • • • 3 (T) or 4 M 3 50,000 § Withstand and close -on rating. See pages 3-5 for WCR information and specific breaker ratings. ¶ With 16-space load center and NEMA 1 or NEMA 3171 enclosure. Up to 8 tandem breakers can be used, for a maximum of 24 circuits. *` GM85273- SA_ with 12-space toad center and NEMA 1 enclosure. Note: Combined interface board is available on single-phase standard or service entrance models. (Not available on 3-phase or load center models.) Gii-140 (Model R)cr Automatic Transfer Switch) WOg page 7 KOH KOHLER® Phone 9 CO., Kohler, Wisconsin 53044 USA Phone 20-457-4441, Fax 920-459-1846 For the nearest sales and service outlet in the US and Canada, phone 1-800-544-2W KOFfi_ERPower.com Model Designation Model Controls Voltage Poles Enclosure Current Rating Connections A AL Record the transfer switch model designation in the boxes_ The transfer switch model designation defines ratings and characteristics as explained below. Sample Model Designation: RXT-JFNC-0200A Model RXT: Kohler Automatic Transfer Switch Controls J: Interface for RDC2/DC2 Controller (standard or combined interface/load management) Voltage/Frequency C: 208 Volts/60 Hz (3-phase only) F: 240 Volts/60 Hz M: 480 Volts/60 Hz (3-phase only) Number of Poles/Wires N: 2-pole, 3-wire, solid neutral (1201240 V only) T 3-pole, 4-wire, solid neutral V: 4-pole, 4-wire, switched neutral Availability is subject to change without notice. Kohler Co. reserves the right to change the design or specifications without notice and without any obligation or liability whatsoever. Contact your local Kohlerm generator distributor for availability. � I. nosier �Q. All rcgnts reserved. Gi 1-140 (Model RXT Automatic Transfer Switch) T20g Page 8 Enclosure A: NEMA 1 C: NEMA 3R NEMA 1 enclosure is available on 100 amp load center models only. Current Rating 0100: 100 amps 0300: 300 amps 0150: 150 amps 0400: 400 amps 0200: 200 amps Connections A: No load center B: With load center (100 amp single-phase only) ASE: Service entrance rated CSE: Service entrance rated with GSA certification (100/200 amps only) DISTRIBUTED BY: