XT-Series & AT-Series Alternators Designed for Recreational Applications

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1 XT-Series & AT-Series Alternators esigned for Recreational Applications 170A or 220A in a Small ase Package Up to 140A at dle Speeds Patented Smart Ready Technology (XT-Series Only) ual an ooling, igh Airflow rame deal for arge attery anks US Title 33,, SO 8846 and SA 1171 ertified NW AT-Series and the New XT-Series Alternators from almar bring together the latest innovations in alternator design to deliver incredible charging power in a compact, Marine-friendly package. 170A XT-Series 220A AT-Series Advanced raided Stator The New XT-Series 170A Alternator family features a state-of-theart, braided wire stator design to generate exceptional output in the smallest possible area. The XT-Series produces slightly more power than our previous AT-Series 165A design and operates 5-10 cooler. n addition, we ve added almar s Smart Ready internal regulator technology to provide an additional level of fault tolerance for cruising boaters. Available XT-Series mounting styles have been expanded to include the Vortec 9Si design found on many M gasoline engines. airpin Stator The AT-Series 220A Alternator family features a hairpin-wound stator design which uses densely wound square copper wire to generate up to 220A at 3,000 engine rpm. airpin-wound stators feature 96 slots - compared to 36 slots in a traditional S-wound stator - allowing the hairpin-wound stator to develop superior electromagnetic energy and efficiency to other traditional stator designs. Traditional S-Wound Stator XT-Series and AT-Series Alternators may require a Tachometer Signal Stabilizer (Part No. 15-TSS) if your current tachometer is not adjustable. XT-Series and AT-Series Alternators should only be used in ual Vee or Multi-roove Serpentine belt configurations. almar s growing range of Altmount Serpentine Pulley onversion its shown on page 11 support all XT- and AT-Series Alternators. XT / AT Series Power Take Off 170 A 5.2 P 220 A 6.0 P Mounting ndividual Alternator Part Number (1)(3) Alternator it with Max harge Regulator (2) 1-2 Spindle XT-S-170-XX XT-S-170-XX-T 3.15 Saddle XT--170-XX XT--170-XX-T (4) Vortec XT-VT XT-VT T 1-2 Spindle AT-S-200-XX AT-S-200-XX-T 3.15 Saddle AT--200-XX AT--200-XX-T (4) 4 Saddle AT XX AT XX-T Altmount Pulley it Required? Yes, f V or Serpentine is Not Present (1) XX Pulley esignations: V = 1/2 ual Vee, 6 = 6 Serpentine, 10 = 10 Serpentine. (2) it ncludes AT-Series Alternator, Max harge Regulator (M-614-) and Temperature Sensors (M-TS-A, M-TS-). (3) The AT-Series Alternator may require a Tachometer Signal Stabilizer (Part No. 15-TSS) if your current tach is not adjustable. (4) All ual oot Yanmar its include Mounting it. 1

2 XT-Series and AT-Series Alternators ow to Select the orrect almar harging System for Your Vessel Step 1: etermine your lectrical oad All your device loads and expected duty cycles will clarify your expected daily battery discharge requirements. Add a safety factor. (A) Step 2: dentify your attery ank Technology and apacity A ow many batteries are in your bank and what is the total storage capacity? What type of batteries are employed? (ifferent technologies require different charging programs) Step 3: Select your Alternator The correct charging load depends on the battery technology and capacity. or example, an AM battery can accept a 40% charge load, so a 300Ah bank of AMs can accept 120A of charging from the alternator. Therefore you could utilize a 120A alternator to charge your bank as quickly as possible. () Step 4: dentify the Alternator Mounting Style Present on your ngine The most common mounting styles are shown to the right: (A) 1 Single oot (Spindle Mount) Motorola Style almar XT/AT-S Series () 2 Single oot (Spindle Mount) elco Style almar XT/AT-S Series () 3.15 ual oot (Saddle Mount) itachi Style almar XT/AT- Series () 4 ual oot (Saddle Mount) -180 Style almar AT-4 Series () Step 5: etermine your elt and Pulley Requirements An AltMount belt/pulley conversion kit may be required to handle your alternator Power Take-Off ( PTO ) load. () etailed toolsets for calculating loads and selecting the appropriate charging system for your vessel are available in the almar atalog or at AT-Series Alternator Specifications Alternator Style: Small ase, Positive ield xcitation (P-Type) Mounting Styles: XT-VT Series: Vortec Style XT/AT-S Series: 1 or 2 Single oot (Spindle) XT/AT- Series: 3.15 ual oot (Saddle) AT-4 Series: 4 ual oot (Saddle) ooling: ual nternal ans Positive : Threaded Stud Stud imensions: XT/AT: M8 x 1.25 earings: Sealed earings, eavy uty Radial (front & rear) rounding: XT-Series: ase round AT-Series: solated round, Stud imensions: M6 x 1.00 ase onstruction: Ventilated ast Aluminum A/Stator : 16 Poles Stator Wire included in Pigtail Plug Regulation: xternal P-Type (M-614) XT Series ontains nternal Smart Ready Voltage Regulator inish: Red Powder oat iodes +/-: 6 Positive, 6 Negative; 50A Rated Tensioning Arm Mount: AT-Series: 0.88 (22mm) Vertical Slot XT-Series: ive Position rown (3x: M8 x 1.25, 2x: 8mm) nternal Voltage Regulation (XT-Series Only): 14.1 Volts (12V systems) gnition Protection Ratings: US Title 33, SA 1187,, SO 8846 Normal Operating Temperature: 180 / 82 Max Operating Temperature: 225 / 108 Mounting oot ore: XT/AT- & AT-4-Series: 10mm (3/8 ) XT/AT-S-Series 1 inch: ½, S-Series 2 inch: 10mm (3/8 ) 2 ustomer Service: +1 (360) x1 ow RPM ut-n: XT: 1,000 rpm, AT: 1,320 rpm Max Alternator RPM: XT/AT 12,000 rpm Technical Support: +1 (360) x3

3 XT-Series and AT-Series Alternators Alternator urves Alternator output is dependent on a number of factors: battery condition and capacity, wire size, engine horsepower and engine RPM, battery temperature and alternator temperature. Of these factors, alternator speed and temperatures are the most important. The following graph describes alternator output based on two temperature levels (ambient (26 ) and hot (90 ). Test voltages are set at 13.5V. Alternator (Amps) XT-Series & AT-Series Alternator omparison 170A & 220A (12V) Versions A, old A, ot A, old A, ot Alternator RPM old - 25 o (77 o ) ot - 60 o 170A, old 170A, ot 220A, old 220A, ot AT-Series 220A XT-Series 170A almar XT-Series and AT-Series Alternators and harging its provide maximum charging power in a small case package suitable for installation in most small-to-medium sized diesel engines and most M-based 4.3 to 8.1 gasoline engines. Utilize the almar product configurator at to locate a solution for your engine. 3

4 XT-Series and AT-Series Alternators XT-170-Series imensions (+) M8 x 1.25 onnector Temp sensor A Mounting oot ore: VT - 3/8" (10mm) Mounting oot ore: - 3/8" (10mm) S - 1/2" (1") S - 3/8" (10mm) (2") XT-S-170-XX XT--170-XX XT-VT

5 AT-200-Series imensions XT-Series and AT-Series Alternators A/ Stator A round ield Positive Mounting oot ore: - 10mm S - 1/2" (1")* S - 3/8" (2")* AT-S-200-XX AT--200-XX AT XX TM SRPTON N. mm ual Vee (V) Pulley ia A 6 (Serpentine) Pulley ia (Serpentine) Pulley ia Mounting ole-to-ole Over-all eight ase iameter Over-all ength w/ V Pulley Over-all ength w/ 6 Pulley Over-all ength w/ 10 Pulley V Pulley Width Pulley Width Pulley Width TM SRPTON N. mm ase ront to oot ront oot Thickness (w/o spacer) oot Thickness (w/ spacer) oot to Stator oot Thickness Saddle Width Saddle Width Rear oot Thickness M Rear oot to Stator Rear oot to Stator imensions are approximate and for reference only. ontact almar Technical Support if further details are required. 5