03450601H.

**Fuseholders** 

**For 3AG, 5 x 20mm, or 2AG Fuses** 

## **Shock-Safe for 3AG or 5x20mm Fuses PC Board Type** 

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Similar to Shock-Safe fuseholders shown on preceding page, but designed for P.C. board mounting. Shock-Safe design per IEC Standards 60127 and 60065. Two different knob styles available for use with 3AG (1/4" x 11/4") or 5 x 20mm fuses. 

**APPROVALS:** Recognized under the Components Program of Underwriters Laboratories (16A, 250V). Certified by CSA (15A, 250V). VDE approved (10A, 250V). 

## **SPECIFICATIONS:** 

**Electrical:** Rating: See APPROVALS. 

**Insulation Resistance:** 10,000 megohm minimum at 500 VDC. **Contact Resistance:** Less than .005 ohm average at a current of one ampere. 

**Dielectric Strength:** 4000 volts minimum. 

**Mounting:** Intended for soldering to printed circuit boards. **Molded Parts:** Body Material: Black glass-filled thermoplastic (UL 94V0). 

**Knob:** Screwdriver slot, fuse extractor type with nickel-plated, copper alloy insert. Spring-loaded, bayonet style. 

**Knob Material:** Grey or Black glass-filled thermoplastic (UL94 V-0). **Terminals:** Brass. Tin-plated. 

**Ambient Temperature:** –40°C to +85°C. 

*** Please refer to Fuseology section for information on proper fuseholder de-rating.** 

## **Reference Dimensions** 

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.49"<br>|—_ 1.77"  —! | |_<br>4 4<br>.44" .48"<br>.20" .12"<br>a .68" le .24" .040" L o t<br>Recommended hole Pattern<br>< .598.602" +— " _> |< «—-— .698.702"" _ .242.246""<br>> | —<br>56"<br>IA.<br>ORDERING<br>Catalo Fuse<br>Numb Size<br>345  101 1/4" x 11/4" Fuses<br>345  121 5 x 20mm Fuses<br>Body only: 345  101-010<br>Knob only: 345  101-020 ( [1] /4" x 1 [1] /4") Grey;<br>345  121-020 (5 x 20mm) Black.<br>**----- End of picture text -----**<br>


## **For Midget Fuses Panel Mount Type** 

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Two panel mount fuseholder designs are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. 

**APPROVALS:** Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. 

## **SPECIFICATIONS:** 

**Electrical:** Rated at 30 amperes for any voltage up to 600 volts. 

**Dielectric Strength:** 4000 volts minimum. 

**Mounting:** Flange mounting either in front of or behind panel. Watertight version must be front panel mounted. Maximum panel thickness is .75". 

**Molded Parts:** Black thermoplastic (UL94 V-0). 

**Knob:** Screw type, with engraved markings: unfilled characters ( **571** 007, **571** 008, **571** 007P, **571** 008P), light blue characters ( **571** 027, **571** 028, **571** 027P, **571** 028P). 

**Terminals:** Brass. Tin-plated. Combination solder and[1] /4" QuickConnect. Side terminal has .125" diameter hole. Bottom terminal has .156" x .124" elongated hole. 

**Ambient Temperature:** –40°C to +85°C. 

**Hardware: 571** 007, **571** 008, **571** 027, **571** 028, **571** OCC, and **571** RCC, none; **571** 007P, **571** 008P, **571** 027P, **571** 028P, **571** OCCP, and **571** RCCP, two O-rings for watertight seal per MIL-PRF-19207. 

*** Please refer to Fuseology section for information on proper fuseholder de-rating.** 

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Reference Dimensions<br>.15" MAX | .86" 172" (2) DIA.<br>DIA. 1.12"<br>.032" reia= 2.08"2.40"  ly .76" [= 1.31"1.75"<br>STANDARD MOUNTING<br>(FLANGE IN FRONT OF PANEL)<br>.15" MAX<br>1.310".890" 2 MOUNTING HOLES FORNo. 8 SCREWS<br>.446"<br>e e<br>**----- End of picture text -----**<br>


## **ORDERING INFORMATION:** 

|**Catalog Number**<br>**Standard**<br>**571** 027<br>**571** 028|**Catalog Number**<br>**Standard**<br>**571** 027<br>**571** 028|**Catalog Number**<br>**Watertight**<br>**571** 027P<br>**571** 028P|**Bottom**<br>**Terminal**<br>Straight<br>Rt. Angle|**Fuse Length**<br>**Range***<br>15/16" – 13/8"|
|---|---|---|---|---|
|**571** 007<br>**571** 008<br>**571** OCC<br>**571** RCC||**571** 007P<br>**571** 008P<br>**571** OCCP<br>**571** RCCP|Straight<br>Rt. Angle<br>Straight<br>Rt. Angle|113/32" – 11/2"<br>11/2"|



*Fuse diameter is[13] /32". 

13 

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FUSEHOLDERS | = _ SHOCK-SAFE TYPE - 2a | For 3AG or 5x20mm Fuses | | Aspecifications. complete familyShock-safe of fuseholdersdesign designedeliminates toany international.possibility of electrical FRONT PANEL, LOW= PROFILE | shock, per EC Standards 257 and 65. Knobs are available for use with { ; | 3AG.(1/4" x 1-1/4") fuses or 5x 20mm fuses. —s APPROVALS: Recognized under the Components Program of Underwriters 3 Nae ip Laboratories and Certified by CSA (20A, 300V). a SEMKO approved (6.3A, 250V). . ; VDE approved (10A, 250V). ; SPECIFICATIONS: . ‘ FRONT PANEL, HIGH; PROFILE Electrical: Rating: See APPROVALS. € : Insulation Resistance: 10,000 megohm minimum at 500 VDC. ; _ : Contact Resistance: Less than .005 ohms average at currents up to Sn. aly peel : 1 ampere. —) eee ay[A] Dielectric Strength: 4000 volts minimum. , : i Mounting: Threaded styles withstand 15 lb.-in. mounting torque. | i | MaximumMolded Parts:panelBodythicknessMaterial:is.0.31”.Black glass-filled thermoplastic. . FRONT- PANEL ; Knob Material: Grey or black glass-filled thermoplastic. © , Hex Nut Material: Glass-filled thermoplastic. ; x : Knob: Finger-grip fuse extractor type or screwdriver slot fuse extractor type E ee : with nickel-plated copper alloy insert. Spring loaded, bayonet style. ® 2 Pe oe . ; Terminals: Brass: Tin-plated. Accept solder or .187” female connector. ons i Vibration: 10—500 Hz .03” constant amplitude or 10 G’s constant _ : | Ambient Temperature: — 40°C to + 85°C. ES | acceleration. ..— REAR PANEL — | Hardware: Plastic hex nut, unassembled (threaded styles). Sieel retainer, ‘e ae black oxide finish; unassembled (fast-mount styles). a yf | PATENTS: Pending. ei PI So 

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## LOW PROFILE, FAST MOUNT 

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| SHOCK-SAFE FUSEHOLDER SELECTOR GUIDE<br>CATALOG NUMBER j<br>: "4/4" 1-174" LOW HIGH FRONT | REAR P.C. BOARD |RT. ANGLE | STRAIGHT<br>(3AG} 5x26mm KNOB TYPE PROFILE PROFILE MOUNT | MOUNT | MOUNT TERMINAL | TERMINAL<br>as 601 fous 621 [Screwarversin [x | (XT dT CT<br>ager [eas 6a1—[Screwdrversin ix «| XT SCT dT<br>gas 612 faas 692 [Screworver sion | ik s(x dT<br>3a5 613 [a4s 623 [Finger rp | ——SiX—Sid(X SOT [ST]<br>345 701" Screwériver sit [x | SOE Sd| dT<br>a5 711 [aap 731 |Sorewarversin fx _—«| _—Ssdxt—Ssd| S| |<br>Bis 903" Finger Grip «| SKC KC =<br>——pasoray [aes gaa" [FingerGip | SX OT ST Cd<br>*SEMKO and VDE approvals pending. tMounted with retainer ring. *See page 26 for P.C. Board Style.<br>| ' To order bodies and knobs separately, see next page.<br>**----- End of picture text -----**<br>


24 LITTELFUSE 

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| | FUSEHOLDERS<br>ia | SHOCK-SAFE TYPE<br>_ For 3AG or 5x20mm Fuses<br>| seem, fF CATALOG NUMBER RT. ANGLE STRAIGHT<br>“ae | 4/4" x 1-1/4" BOTTOM BOTTOM ,<br>.<br>7 . (Gs 08.28 i ao 4 FUSES TERM. TERM.<br>wn Se:Sie a sasost<br>. . Body and Nut only: 345 601-010 (Rt. Angle); 345 611-010 (Straight).<br>{ : Knob only: 345 601-020 (1/4" x 1-1/4"); 345 621-020 (5 x 20mm). - ‘<br>H<br>$ . SPECIAL lt CATALOG NUMBER RT. ANGLE STRAIGHT<br>k Var THREAD | 1/4 1-1/4" BOTTOM BOTTOM<br>| (> or nar a | Fuses TERM. TERM.<br>| Noy) a as 02<br>| Body and Nut only: 345 602-010 (Rt. Angie}; 345 612-010 (Straight).<br>| Knob only: 345 601-020 (1/4” x 1-1/4”); 345 621-020 (5 x 20mm). :<br>; (aN ai . va"scamna er 1/4" 1-1/8" CATALOGsezNUMBER BOTTOMRT. ANGLE STRAIGHTBOTTOM<br>cS |=| SeA ; 345FUSES603 345 623 TERM. TERM.<br>i Body and Nut only: 345 603-010 (At. Angle); 345 613-010 (Straight),<br>Knob only: 345 603-020 (1/47 x 1-1/4”); 345 623-020 (5 x 20mm).<br>:<br>ae sreoM 9 CATALOG NUMBER RT. ANGLE STRAIGHT ;<br>_ Pa all 4 1/4"x1-174" BOTTOM BOTTOM .<br>(E~ (ee a | FUSES TERM. TERM.<br>wy EmKu 345° 903 345 923<br>I) eee | sia 345 995 a:<br>: Body and Nuts (2) only: 345 903-010 (Rt. Angle); 345 913-010 (Straighi).<br>Knob only: 345 603-020 (1/4" x 1-1/4”); 345 623-020 (5x 20mm). ~<br>| = CATALOG NUMBER AT. ANGLE STRAIGHT<br>we 1/4<br>| x1-1/4" BOTTOM BOTTOM<br>(if S08 125" | FUSES TERM. TERM.<br>| LS| ae | od Body and Retaining Ring only: 345 701-010 (Rt. Angle); 345 711-010 (Straight).<br>Knob only: 345 601-020 (1/4° X 1-1/4"); 345 621-020 (5 x 20mm),<br>| “Push-On” Type Retaining Ring Suggested Mounting Hole Straight-  Bottom Terminal<br>|i : 83” DIA. "480"ATS 7] i" | 3" [=e<br>; r 1 502"510" Oe4 |<br>. Plastic Hex Nut with Flange Righi Angle Bottom Terminal<br>j<br>iii 19"| VE" TNREAD ,Vis65"ts\~~ toerom(FB= i ,<br>NOTE: Knobs are color-coded. On screwdriver tH } Tr CF<br>: slot type, knobs are grey for 1/4” x 1-1/4” KY L<br>betty fuses, black for 5 x 20mm fuses. On finger grip [S| 62" 4<br>ae type, the lettering on knobs for 4/4" x 1-1/4” a<br>mo fuses are filled with grey paint.<br>**----- End of picture text -----**<br>


LITTELFUSE 25