Product Description
Benshaw RSC-220-U120 RediStart Contactor — 220A, 3-Pole, 150 HP @ 460V
The Benshaw RSC-220-U120 is a 220A, 3-pole IEC contactor from the RediStart RSC series. Rated at 150 HP at 460V three-phase (220A AC-3 / 275A AC-1), the RSC-220-U120 includes 2 Normally Open (NO) + 2 Normally Closed (NC) built-in auxiliary contacts. The U120 coil is a universal 100–240V AC coil covering all common North American control voltages (100V through 240V AC) in a single part number. Key features include bolt-on power terminals, a draw-out coil cassette for field replacement, and integral surge suppression. The RSC-220 shares the same physical frame and replacement coil (RSC-C220-U120) as the RSC-180. The compatible overload relay is the SPO-220 series. All Benshaw RSC series contactors carry a 2-year warranty.
Quick Specifications
- Current Rating: 220A AC-3 / 275A AC-1
- HP Rating: 75 HP @ 230V / 150 HP @ 460V (three-phase)
- Poles: 3-pole, non-reversing
- Coil: U120 — universal 100–240V AC
- Aux Contacts (built-in): 2 NO + 2 NC (two side-mounted blocks)
- Terminal Type: Bolt-on (lug) power terminals
- Coil Design: Draw-out cassette — field-replaceable
- Surge Suppression: Integral (built-in standard)
- Compatible Overload: SPO-220 series (RSC-180 and RSC-220)
- Replacement Coil: RSC-C220-U120 (shared with RSC-180)
- Weight: 11.9 lbs (same frame as RSC-180)
- Warranty: 2 years (Benshaw Promise)
- Certifications: UL, CSA, IEC 60947-4-1, NEMA, BS, EN, VDE
RSC-220 vs. RSC-180 — Same Frame, Higher Rating
| Specification | RSC-180 | RSC-220 (this item) |
|---|---|---|
| Current (AC-3) | 180A | 220A |
| Current (AC-1) | 230A | 275A |
| HP @ 230V | 60 HP | 75 HP |
| HP @ 460V | 125 HP | 150 HP |
| Coil | U120 (100–240V AC) | U120 (100–240V AC) |
| Replacement Coil | RSC-C220-U120 | RSC-C220-U120 |
| Overload | SPO-220 | SPO-220 |
| Weight | 11.9 lbs | 11.9 lbs |
| Frame Size | Same | Same |
HP Ratings by Voltage
| Supply Voltage | HP Rating | Phase |
|---|---|---|
| 230V AC | 75 HP | Three-phase |
| 460V AC | 150 HP | Three-phase |
SPO-220 Overload Relay Selection for RSC-220
| Part Number | Adjustment Range | Trip Class |
|---|---|---|
| SPO-220H-130A | 100–160A | Class 20 |
| SPO-220-150A | 120–185A | Class 10 |
| SPO-220H-200A | 160–240A | Class 20 |
For a 150 HP / 460V motor (FLA approximately 180A), the SPO-220H-200A (Class 20, 160–240A) is typically the correct selection. Always verify against the motor’s nameplate full-load amperage. Call 1-800-222-5129 for overload selection assistance.
Benshaw RSC Large-Frame Series Overview
| Model | AC-3 | HP @ 460V | U120 Coil Range | Overload |
|---|---|---|---|---|
| RSC-180 | 180A | 125 HP | 100–240V AC | SPO-220 |
| RSC-220 (this item) | 220A | 150 HP | 100–240V AC | SPO-220 |
| RSC-300 | 300A | 200 HP | 100–240V AC | SPO-400 |
| RSC-600 | 600A | 400 HP | 100–127V AC only | Consult factory |
| RSC-800 | 800A | 600 HP | 100–127V AC only | Consult factory |
Important: At RSC-600 and RSC-800 frames, the U120 coil covers 100–127V AC only — not the full 100–240V range available on RSC-180 through RSC-400 frames.
Product Features
- 150 HP at 460V: The RSC-220-U120 is rated for 150 HP at 460V three-phase (220A AC-3 / 275A AC-1), suitable for large industrial motor starters including large compressors, pumps, chillers, fans, and process equipment. At 230V, it is rated 75 HP.
- Universal U120 Coil — 100–240V AC: The U120 coil operates across the full range of 100–240V AC, covering 110V, 120V, 208V, 220V, and 240V control circuits in a single part number. This simplifies ordering and reduces spare parts inventory. Note that at the larger RSC-600 and RSC-800 frames, the U120 designation covers only 100–127V AC.
- Shared Frame and Replacement Coil with RSC-180: The RSC-220 and RSC-180 share the same physical frame (11.9 lbs) and the same replacement coil part number (RSC-C220-U120). This means facilities operating both RSC-180 and RSC-220 contactors can stock a single replacement coil for both sizes — a meaningful MRO simplification.
- Draw-Out Coil Cassette: The RSC-220 coil withdraws from the front of the contactor without tools and without disconnecting power circuit wiring, allowing fast coil replacement in the field. Replacement coil: RSC-C220-U120.
- Integral Surge Suppression: Built-in surge suppression is standard on all RSC-180 and larger contactors, protecting the coil from transient voltage spikes during operation.
- Bolt-On Power Terminals: The RSC-220 uses bolt-on lug-type power terminals appropriate for the heavier cable gauges required at 220A.
- SPO-220 Overload Relay Compatible: The SPO-220 series mounts directly to the RSC-220 load terminals. For a 150 HP / 460V application (FLA approximately 180A), the SPO-220H-200A (Class 20, 160–240A) is typically the correct selection.
- 2-Year Benshaw Warranty: All Benshaw RSC series contactors carry a 2-year warranty — double the industry standard 1-year.
Stock Item – Order before 4:00 PM EST for Same-Day Shipping.
Frequently Asked Questions
What is the difference between the RSC-220 and the RSC-180?
The RSC-220 (220A AC-3, 150 HP @ 460V) and RSC-180 (180A AC-3, 125 HP @ 460V) share the same physical frame size and weight (11.9 lbs), the same U120 universal 100–240V AC coil, the same replacement coil part number (RSC-C220-U120), and the same SPO-220 overload relay series. The difference is current capacity and HP rating. Choose based on your motor’s full-load amperage — if FLA exceeds 180A, the RSC-220 is required.
Does the U120 coil on the RSC-220 work at 208V and 240V, or only 120V?
The U120 coil on the RSC-220 operates across 100–240V AC — not just 120V. A single RSC-220-U120 works at 110V, 120V, 208V, 220V, and 240V AC. This is the standard for RSC-180 through RSC-400 frames. Note that at the larger RSC-600 and RSC-800, the U120 coil covers only 100–127V AC.
What overload relay is compatible with the RSC-220-U120?
The RSC-220-U120 uses the Benshaw SPO-220 series overload relay (same series as RSC-180). Three ranges: SPO-220H-130A (100–160A, Class 20), SPO-220-150A (120–185A, Class 10), and SPO-220H-200A (160–240A, Class 20). For a 150 HP / 460V motor with FLA approximately 180A, the SPO-220H-200A is typically appropriate. Kent Electrical Supply stocks all three SPO-220 ranges. Call 1-800-222-5129 for overload selection assistance.
Is there a replacement coil available for the RSC-220?
Yes — the RSC-C220-U120 is the replacement coil for the RSC-220 (and RSC-180). It is rated 100–240V AC and withdraws from the contactor without tools. Facilities running both RSC-180 and RSC-220 contactors can stock a single RSC-C220-U120 coil for both contactor sizes.
Does the RSC-220-U120 qualify for same-day shipping?
Yes — the RSC-220-U120 is a stocked item at Kent Electrical Supply’s warehouse in Emmaus, PA. Orders placed before 4:00 PM EST ship same business day. For SPO-220 overload relays, RSC-C220-U120 replacement coils, or alternate coil voltage variants (U200, U500), call us at 1-800-222-5129 or text your RFQ to 484-425-0652.
