M21NRFA-LNF-NS-02 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Pacific Scientific M21NRFA-LNF-NS-02 is part of the POWERMAX II M Motors series and features a NEMA 23 frame size with an enhanced construction type. This motor has a single flat shaft, a step angle of 1.8 degrees with 200 steps per revolution, and operates within a temperature range of -20°C to +40°C. It uses regular leadwire connections with 8 flying leads and has a Class B insulation rating up to 130°C.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The M21NRFA-LNF-NS-02 is a hybrid stepper motor produced by Pacific Scientific as part of the POWERMAX II M Motors series. The motor receives pulse-and-direction signals from a drive and translates them into fixed angular steps for feeders, indexing fixtures, and low-to-medium torque axes in automated machinery. Its open-loop operating method suits applications that follow commanded step counts without relying on built-in position feedback.
The motor has a frame size of NEMA 23, which uses the 57 mm square mounting pattern shared with other NEMA-rated components. Each command pulse advances the rotor by 1.8 degrees, so one full revolution consists of 200 discrete steps. Under correct excitation, accumulated error remains within ±1.5 %, supporting repeatable alignment of driven parts. The unit is supplied with 8 flying leads in an eight-wire configuration, allowing series or parallel phase wiring. The motor uses a regular lead-wire connection style for straightforward routing into the drive system. Its single rotor stack is paired with a standard rotor design and a flat-machined single shaft, allowing set-screw couplings to seat securely. Enhanced construction and winding type A match the electrical characteristics expected by a companion POWERMAX drive, and the general NEMA face style allows direct mounting to gearheads or brackets in existing layouts.
Windings use Class B, 130°C insulation, providing thermal durability across the rated ambient range of -20°C to +40°C. At room conditions, the insulation system withstands a test potential of 340 Vdc and measures at least 100 Megohms of resistance, indicating low leakage current. The motor does not include an encoder option, so any position verification must be handled by external devices or system logic. Its lead wires can also be routed through cable carriers without requiring separate strain-relief hardware at the motor body.
