Merkle-Korff Industries – a Nidec Company www.nidec-mk.com
25 Northwest Point Blvd, Suite 900 • Elk Grove Village, IL 60007 • Phone (847) 439-3760 • Fax (847) 439-3963
The 2500 series is a precision permanent magnet
DC, brush commutated motor that can be mounted
to a variety of Merkle-Korff gear reducer options.
The 2500 series motor can be fitted with available
encoders.
SPECIFICATIONS
Input Voltage: 6 to 48 Vdc
Output Power: 8 to 30 Watts
Rotation: Bi-Directional
Maximum Speed: 8000 RPM
Temperature Range: -30 °C to +80 °C
Construction Features
Poles: 2
Bearings: Sintered Bronze
Brushes: Long life copper or silver graphite
Insulation Class: B
Shaft Diameters: 0.187”
Termination: Two 0.187” Spade Terminals
Regulatory Approvals: RoHs
TYPICAL APPLICATIO NS
Analytical Laboratory Equipment
Food Service Equipment
Actuators
Pumps
Conveyors
Material Handling
Packaging equipment
Drive-Thru Window Operators
OPTIONAL FEATURES
Customized output shafts including dual output
Various lead lengths, terminals and connectors
EMI Filtering: External Suppression Only
Magnetic Encoder: 2 to 12 PPR Resolution
Optical or Capacitive: Up to 2048 PPR
Resolution
2500 SERIES
PERMANENT MAGNET BRUSH DC MOTOR
2518
MOUNTING
Merkle-Korff Industries – a Nidec Company www.nidec-mk.com
25 Northwest Point Blvd, Suite 900 • Elk Grove Village, IL 60007 • Phone (847) 439-3760 • Fax (847) 439-3963
Parameter Symbol Units 2508 2508 2512 2512 2518 2518 2524 2524 2532 2532
Voltage E Volts 12 24 12 24 12 24 12 24 12 24
Continuous Torque T
c
Oz.in 1.6 1.6 4.2 4.2 5.0 5.0 6.0 7.0 8.2 8.8
Continuous Current I Amps 1.15 0.55 1.95 0.95 2.5 1.25 2.75 1.48 3.23 1.72
Continuous Speed n
c
RPM 6500 6500 5000 5000 5600 5600 5050 5000 4485 4700
Stall Torque T
s
Oz.in 18 20 26 30 40 42 48 52 51 70
No Load Speed N
0
RPM 7050 7050 5800 5800 6350 6350 5970 5730 5340 5340
Output Power P Watts 7.8 7.8 15 15 20 20 23 25 27 30
Maximum Winding
Temperature
Θ
max
°C 130 130 130 130 130 130 130 130 130 130
Torque Constant K
t
Oz.in/Amp 2.18 4.37 2.63 5.41 2.48 4.97 2.63 5.53 2.96 5,91
Back-EMF Constant K
e
V/kRPM 1.61 3.23 1.94 4.0 1.84 3.67 1.95 4.09 2.19 4.38
Terminal
Resistance
R
t
Ohms 1.4 4.90 1.21 4.23 0.74 2.74 0.78 2.48 0.68 1.97
Motor Constant K
m
Oz.in/√W 1.66 1.66 2.39 2.64 2.88 3.00 2.99 3.52 3.60 4.21
Length L
In 2.172 2.172 2.422 2.422 2.797 2.797 3.172 3.172 3.672 3.672
2500 SERIES
PERMANENT MAGNET BRUSH DC MOTOR
2500 SERIES MOTOR PERFORMANCE