IM-500B 1/3/07
Page 14 of 26
Install emergency stop switch!
Be sure to install electric source switch (or breaker for emergency stop) for emergency stop.
If not, it can cause damage or fire.
Only the single phase motor has a thermal protector!
Single phase motor has a thermal protector with automatic reset function. Motor automatically
restarts after protector trip when the motor gets cooler. When thermal protection works, be sure
to switch off the power and inspect the abnormal conditions. (Refer to p. )
With a thermal protector (single phase only)
CSA REQUIREMENT
Three phase motor is NOT protected!
External protection in accordance with CE Code, Part 1, MUST be provided.
Minimum circuit ampacity of conductor is as follows:
ISP-500B single phase – 18A ISP-500B three phase – 15A
Maximum Branch Circuit Breaker is ISP-500B – 15A (1 Phase 100/115V is 20A)
Danger of fire due to electricity
1. Avoid motor burnout by installing recommended breaker. (refer to chart 1 on the next page)
If not, it can cause bodily injury or fire due to electricity.
2. Use electric source cord and ground cord of over 2mm
²
(over rated 18A/single phase and
15A/three phase) for ISP-500B. If not, it can cause bodily injury or fire due to electricity.
3. Firmly fit proper round crimp-style terminal to electric cord with application device and
connect to motor terminal. If not, it can cause bodily injury or electrical fire due to looseness or
disconnection.
4. Be sure to connect electric cord to terminal by using cable gland at
φ
20mm hole of motor
terminal box. If not, it can cause bodily injury or fire due to looseness or disconnection.
5. Be sure to ground. Connect ground cord to ground terminal in motor terminal box. If not, it
can cause bodily injury such as electric shock.
When Using This Pump In Europe
This vacuum pump must be equipped with a main disconnect device in accordance with requirements of
EN60204-1, clause 5.3.2.
It is recommended to use a circuit breaker as main breaker which is suitable for isolation according to
EN60947-2 and is equipped with an operating handle which is lockable in the OFF position and complies
with the other requirements of EN60204-1, clause 5.3.
