WHAT IS IT?
The Model PC is a rugged safety switch that provides a quick positive shutoff of dangerous equipment in emergencies or normal operation. It is actuated by a cable pulled by endangered personnel. The output contacts of the Model PC can control up to two separate circuits – one for machinery shutdown and one for alarm.
WHY IS IT NECESSARY?
Safety-minded operators of conveyors, production lines, elevator equipment, assembly lines, material handling systems, cranes, and more consider it a must for employee protection. Most states have safety statutes that require these switches on conveyors and related equipment. American National Standard Institute recommends their use in ANSI standard No. ASME B20.1 - 2012-5.11. This ANSI standard will likely soon become part of the William-Steiger Act of 1970- the OSHA act.
Technical Specifications
- The housing is cast aluminum, with optional epoxy or polyester powder coating available (for additional corrosion resistance).
- Single-ended units are actuated via a cable pull from one direction, while double-ended units can be actuated from either or both directions.
- The model PC units come standard with a 16 lb. pull force, however units can be manufactured with a 25 lb pull force. Add "-25" to the end of the model number.
- The unit is mounted on the conveyor by drilling (4) 13/32" diameter holes.
- General purpose (weatherproof) units and explosion-proof units have (2) 1" NPT conduit openings.
- The units with "S" type microswitches (SP/DT) have dry, unpowered microswitch(es) rated for 20A @ 120 VAC, 240 VAC, and 480 VAC.
- The units with "T" type microswitches (Two-Circuit Double-Break) have dry, unpowered microswitch(es) rated for 15A @ 120 VAC, 240 VAC, 480 VAC, and 600 VAC.
- Highly-visible red polyester powder coated flag arm for quick identification of actuation.
- Optional red warning light available for dark or remote locations.
- The ambient temperature range is -22ºF (-30ºC) to 104ºF (40ºC).
- The general-purpose units are rated NEMA type 4/4X weatherproof and corrosion-resistant. Explosion-proof units are rated NEMA type 7/9 for dust ignition-proof and vapor explosion-proof. The special dual-rated "D" units meet NEMA type 4 weather-proof, NEMA type 4X corrosion resistant, and NEMA 9 type dust ignition-proof.
- The general-purpose controls are IP65 compliant.
- Most models are UL listed and/or CSA certified.
Pricing
*Prices subject to change without notice.
| Model | Description | Shipping Weight(lbs.) | Price |
|---|---|---|---|
| PCL-1S | 1 SP/DT switch, left ended - No Light. | 12 | CALL FOR PRICING |
| PCR-1S | 1 SP/DT switch, right ended - No Light. | 12 | CALL FOR PRICING |
| PCL-2S | 2 SP/DT switches, left ended - No Light. | 12 | CALL FOR PRICING |
| PCR-2S | 2 SP/DT switches, right ended - No Light. | 12 | CALL FOR PRICING |
| PCD-2S | 2 SP/DT switches, double ended - No Light. | 16 | CALL FOR PRICING |
| PCD-4S | 4 SP/DT switches, double ended - No Light. | 16 | CALL FOR PRICING |
| PCL-1T | 1 TC/DB switch, left ended - No Light. | 12 | CALL FOR PRICING |
| PCR-1T | 1 TC/DB switch, right ended - No Light. | 12 | CALL FOR PRICING |
| PCL-2T | 2 TC/DB switches, left ended - No Light. | 12 | CALL FOR PRICING |
| PCR-2T | 2 TC/DB switches, right ended - No Light. | 12 | CALL FOR PRICING |
| PCD-2T | 2 TC/DB switches, double ended - No Light. | 16 | CALL FOR PRICING |
| PCD-4T | 4 TC/DB switches, double ended - No Light. | 16 | CALL FOR PRICING |
| PCL-2SD | 2 SP/DT switches, left ended - No Light. Special NEMA 4,4X & NEMA 9 Enclosure. | 12 | CALL FOR PRICING |
| PCR-2SD | 2 SP/DT switches, right ended - No Light. Special NEMA 4,4X & NEMA 9 Enclosure. | 12 | CALL FOR PRICING |
| PCD-2SD | 2 SP/DT switches, double ended - No Light. Special NEMA 4,4X & NEMA 9 Enclosure. | 16 | CALL FOR PRICING |
| PCD-4SD | 4 SP/DT switches, double ended - No Light. Special NEMA 4,4X & NEMA 9 Enclosure. | 16 | CALL FOR PRICING |
NOTE: Explosion proof units meet (NEMA 7) Class I, Groups C & D and (NEMA 9) Class II, Groups E, F & G for hazardous locations. NO ADDITIONAL CHARGE. Add suffix "X" to end of standard (general purpose) model number for explosion proof version.
16 pound pull force is standard, however 25 pound pull force is available upon request. Add "-25" to the end of the model number. No additional cost.
Optional 120 VAC warning light available (requires two microswitches per end to function), add suffix "L" to model number: add $177.00 per unit.
Optional LED bulb available for lighted models: add $37.00 per unit, add "LED" to end of model number.
Typical cardboard shipping carton measures 11" x 9" x 8" for single-ended units, or 17" x 11" x 8" for double-ended units.
Accessories
| Part Number | Description | Shipping Weight | Price |
|---|---|---|---|
| PC-25 | 3/32" Orange Vinyl Coated Cable, 3/16" O.D. (price per foot)* | 32 lb./1000 ft. | CALL FOR PRICING |
| PC-26 | 3/32" Orange Nylon Coated Cable, 3/16" O.D. (price per foot)* | 32 lb./1000 ft. | CALL FOR PRICING |
| PC-27 | Cable Support Eyebolt, 1/2" X 6" Plated, with (2) hex nuts and (1) lock washer | 1/2 lb. | CALL FOR PRICING |
| RS-23 | Threadless Cable Support Eyebolt, 5/16" x 9" zinc-plated (no hardware required) | 1/2 lb. | CALL FOR PRICING |
| PC-28 | Cable End Fitting/Cable Clamp (each) | 0.8 oz. | CALL FOR PRICING |
| PC-29 | Conduit Plug, 1" NPT | 3.5 oz. | CALL FOR PRICING |
| PC-29X | Conduit Plug, 1" NPT ("D" & "X" models) | 3.5 oz. | CALL FOR PRICING |
| PC-30 | PC Mounting Bracket | 4-1/2 lbs. | CALL FOR PRICING |
| PC-31 | Replacement flag arm torsion spring, left hand | 0.5 oz. | CALL FOR PRICING |
| PC-32 | Replacement flag arm torsion spring, right hand | 0.5 oz. | CALL FOR PRICING |
CORROSIVE LOCATIONS
(Optional) Epoxy coated units with standard flag arms and plated torsion springs. Add suffix "E" to end of model number for epoxy coating.
| Description | Price |
|---|---|
| For the single end ("L" or "R") units . . . add | CALL FOR PRICING |
| For the double ended ("D") units . . . add | CALL FOR PRICING |
REMOTE or DARK LOCATIONS
Use our red warning light in dark or remote areas (requires two microswitches per end of housing) 120 VAC.
NOTE: Available in rain-tight, dust-tight, or explosion proof.
| Description | Price |
|---|---|
| Add suffix "L" to end of model number . . . add | CALL FOR PRICING |
*Cable is sold per foot, no minimum.