Insulated Jumper Clamp | Clear Body | Spring-Loaded & Standard Options
Insulated Jumper Clamp | Clear Body | Spring-Loaded & Standard Options — Product Overview
Experience a safer, more reliable connection with the PENTA Insulated Jumper – Patented Spring-Loaded Clamp, engineered to prevent the common issue of clamp loosening caused by line vibration and thermal cycling. Traditional jumper clamps often loosen over time, leading to dangerous situations such as fires or power outages. PENTA’s patent-pending spring-loaded clamp design addresses this risk head-on, maintaining consistent pressure and secure contact on conductors—even during prolonged use.
This innovative clamp features a heavy-duty spring mechanism that automatically compensates for vibration, eliminating the need for manual tightening with wrenches or pliers. The pentagonal shape of the clamp body offers a superior ergonomic grip and improved torque strength, reducing fatigue and increasing control during installation.
Constructed from shatter-resistant clear plastic, the jumper body is built for visibility and durability. Both the clamp body and jaw are made from a copper base alloy, ensuring excellent conductivity and corrosion resistance. Designed for compatibility with 5/8”-11NC threaded ferrules, this jumper clamp meets the latest ASTM F2321 standard for insulated jumpers.
Compatible with the following insulated cable sizes:
- 15 kV & 25 kV: #2, 1/0, 2/0, 4/0
- 35 kV: up to 2/0
Key Features:
- Patented Spring-Loaded Clamp – Maintains a tight connection under vibration and thermal expansion
- Ergonomic Pentagonal Design – Offers a better grip and enhanced torque control
- Shatter-Resistant Clear Body – Improves visibility and safety during energized work
- Copper Base Alloy Clamp & Jaw – Ensures conductivity and long-term durability
- ASTM F2321 Compliant – Meets industry safety and performance standards
- Cable Compatibility – Supports 15 kV, 25 kV, and 35 kV insulated cables up to 2/0
- Threaded Ferrule Connection – Assembles easily with 5/8”-11NC threaded ferrules
Insulated Jumper Clamps
| Part Number | Description | Main Line Range | MAX AMPS Continuous Current | Rating | OAL Length (In/mm) | Weight EA (Lbs/kg) |
|---|---|---|---|---|---|---|
| JUMP477-S | Clear Spring-Loaded Jumper Clamp | 477 MCM (.9"-.162") | 400 | 36kV φ → φ / 21kV φ → ⏚ | 12.5" (317) | 2.4 (1.1) |
| JUMP-477 | Clear Jumper Clamp | 477 MCM (.9"-.162") | 400 | 36kV φ → φ / 21kV φ → ⏚ | 12.5" (317) | 2.1 (0.95) |
| JUMP954-S | Clear Spring-Loaded Jumper Clamp | 954 MCM (1.25"-.162") | 400 | 36kV φ → φ / 21kV φ → ⏚ | 13.25" (336) | 2.9 (1.3) |
| JUMP954 | Clear Jumper Clamp | 954 MCM (1.25"-.162") | 400 | 36kV φ → φ / 21kV φ → ⏚ | 13.25" (336) | 2.4 (1.1) |
Tags: Linemen Tools, Utility Tools, Insulated Jumper Clamp, Grounding Equipment, Electrical Safety Tools, High-Voltage Accessories, 15 kV, 25 kV, 35 kV, Spring-Loaded Clamp, Clear Body Clamp, PENTA Tools