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Product details
About this part
The Seiko Seiki SCU-H2001K2 Turbomolecular Pump Control Unit STP-H2001K2 is made by Seiko Seiki and identified by manufacturer part number STP-H2001K2.
This listing is for the exact part number stated above. Compare the part number, condition and photos with your equipment before ordering.
Condition
This item is listed as Used. Previously used. See condition notes and photos.
The photos are part of the description — check them for labels, connectors, markings and any visible wear.
What's included
1 × Seiko Seiki SCU-H2001K2 Turbomolecular Pump Control Unit STP-H2001K2.
Only the items listed here or clearly shown in the photos are included. Cables, manuals, mounting hardware and accessories are not included unless stated.
Identification & compatibility
Check the manufacturer (Seiko Seiki), the part number (STP-H2001K2) and the photos against your equipment. If you are not sure this is the right part, contact us before you order.
Price match
Found an identical item for less at a fixed price elsewhere? Contact us before you buy with the details, and we will review it.
Important information
Product information is based on what is available for this specific item. Where specifications or compatibility are critical to your application, confirm them before purchase.
- Brand
- Seiko Seiki
- Part number
- STP-H2001K2
- Model
- SCU-H2001K2
- Country of Origin
- Japan
- Model (nameplate)
- SCU-H2001K2
- Front panel marking
- STP Control Unit STP-H2001K2
- Type
- Turbomolecular pump control unit
- Power supply
- 1-phase AC 200-240 V, 50/60 Hz
- Power consumption
- 2400 VA
- Weight (nameplate)
- 28 kg
- Manufacturing date
- November 1998 (98.11)
- Main power breaker
- 250 V, 5 A
- Fuses
- F1 / F2, 10 A, 250 V
- Remote I/O
- Start, stop, reset, R.P. thermal, inhibit and heating inputs; +12 V out (I/O TB3)
- Pump connection
- MOTOR CON2 round connector
- Country of manufacture
- Japan
- Condition
- Used
This is a Seiko Seiki SCU-H2001K2 turbomolecular pump control unit with the front panel marked STP Control Unit STP-H2001K2. The nameplate reads "Turbomolecular Pump Control Unit, Model SCU-H2001K2" and the front panel reads "STP Control Unit STP-H2001K2". It is a used Seiko Seiki STP control unit from Japan, made in November 1998. The part number is also written SCUH2001K2 and STPH2001K2.
What does the nameplate say?
Model SCU-H2001K2, serial 23SY9H0623, manufacturing date 98.11, power supply 1-phase AC 200-240 V, 50/60 Hz, power consumption 2400 VA, weight 28 kg. Manufactured by Seiko Seiki Co., Ltd., Yashiki, Narashino, Chiba, Japan.
What is on the front and rear panels?
The front has an LCD with SELECT, UP, DOWN and ENTER keys, START, STOP and RESET buttons, and status lamps for ACCEL, NORMAL, BRAKE, TEMP CTL, POWER, FAILURE and REMOTE, with a REMOTE / MANUAL switch. The rear has the AC power terminal block, a main power breaker (250 V 5 A), two 10 A fuses, terminal blocks I/O TB2 and I/O TB3 (start, stop and reset inputs, +12 V out, R.P. thermal, inhibit and heating inputs), the MOTOR CON2 round connector for the pump, CON6A and CON8A connectors, a multi-pin D-type connector and two ORIX 24 VDC cooling fans.
Who makes Seiko Seiki turbo pump controllers now?
Seiko Seiki's STP turbomolecular pump business passed to BOC Edwards Japan, later Edwards Japan Limited, so newer manuals and service for the STP control unit line come under the Edwards name.
What condition is it in?
Used. The photos show wear on the front panel, a customer tag reading "EC TMP CONT.", and the AC power cable and several I/O wires still attached at the rear with cut or loose ends.
- Ships from
- Israel
- Tracking
- Included on every order
Import duties and taxes may apply in your country and are paid by the buyer on delivery.
- Returns
- Not accepted
Return terms differ from item to item — this item's own policy is shown above.
Whatever it says, an item that arrives faulty or not as described is covered: tell us within 30 days of delivery and we will refund or replace it.
Consumers in the EU, the UK and Israel keep their legal right to cancel within 14 days. Full details and the return request form are on our Returns and warranty page.
Questions about this part
What is the difference between SCU-H2001K2 and STP-H2001K2?
SCU-H2001K2 is the model on the control unit nameplate. STP-H2001K2 is printed on the front panel under "STP Control Unit". Both markings are on this one unit, and buyers search for either number.
What does a turbomolecular pump control unit do?
It powers and runs the turbo pump: it drives the pump motor through acceleration, normal speed and braking, watches temperature and faults, and accepts start, stop and reset commands from the front panel or the remote I/O terminals.
What power does it need?
Single-phase AC 200-240 V, 50/60 Hz. The nameplate gives 2400 VA power consumption.
Can it be started and stopped remotely?
Yes. The rear I/O TB3 terminal block has start, stop and reset inputs, and the front panel has a REMOTE / MANUAL switch.
How heavy is it?
28 kg according to the nameplate. The front panel carries a caution label for a heavy product.
Is the turbo pump included?
No. The photos show only the control unit.
What condition is it in?
Used, made in November 1998. The power cable and some I/O wires are still attached at the rear with cut or loose ends.
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