IS200TTURH1BEC GE Mark VI Input Board | Speed & Voltage Protection

IS200TTURH1BEC

GE Mark VI Primary Protection Input Board – Turbine Speed & Voltage Monitoring

IS200TTURH1BEC primary protection input board from GE Mark VI series. 12 pulse rate inputs, generator/bus voltage monitoring, 125 V DC breaker output, shaft sensors. Fault detection, 12‑month warranty. In stock.

Core Specifications

• Part No.: IS200TTURH1BEC
• Manufacturer: General Electric (USA)
• Series: Mark VI Speedtronic
• Size: 10.16 cm x 33.02 cm
• Operating Temp: –30 to +65 °C
• Technology: Surface‑mount
• Type: Primary Protection Input Board
• Revision: 3 revisions, backward‑compatible with first two

Functional Highlights

• • 12 passive pulse rate inputs for turbine speed (toothed wheel sensing)
• • Monitors generator voltage and bus voltage via potential transformers
• • 125 V DC output for main breaker coil (automatic synchronization)
• • Accepts shaft voltage and current sensor inputs
• • Three relays (K25, K25P, K25A) for coordinated breaker closure

Signal Connectivity & I/O

• • Speed signal via JR5 connector; other signals via JR1
• • TMR systems use JR5, JS5, JT5, JR1, JS1, JT1 (redundant)
• • Two terminal blocks (TB1, TB2) – 24 terminals each, accept #12 AWG
• • Shield termination strips connected to chassis ground
• • TB3 for optional TTL connections to active speed pickups

Installation & Configuration

• • Jumpers JP1/JP2 select SMX or TMR relay driver mode
• • Simplex: use JR5 and JR1 only; TMR: use all six connectors
• • ⅔ logic voting in TMR; simplex voting from <R>
• • Refer to GE manuals for handling and safety warnings

Oiltech Controls’s Insight

Oiltech Controls’s Insight

• • Ideal for GE Mark VI turbine control, generator synchronization, and speed monitoring.
• • Choose IS200TTURH1BEC for primary protection with 12 speed inputs.
• • For TMR systems, verify all six connectors are populated for redundancy.
• • Check jumper settings (JP1/JP2) before installation – critical for correct relay operation.
• • Use shielded cables for speed signals to avoid EMI interference.

Compatible Systems & Devices

• • GE Mark VI Speedtronic turbine control systems
• • PTUR and VTUR boards (breaker control and synchronization)
• • Turbine I/O processors and generator protection panels
• • Retrofit projects for legacy GE turbine controls

Frequently Asked Questions

• Q1: What is the difference between IS200TTURH1BEC and H1BCC?
  A: H1BEC is the normal assembly with 3 revisions; H1BCC is an earlier variant. H1BEC is backward‑compatible with first two revisions, offering improved relay coordination.
• Q2: Can I use this board in a simplex system without all six connectors?
  A: Yes, simplex uses JR5 and JR1 only. TMR requires all six connectors (JR5, JS5, JT5, JR1, JS1, JT1) for full redundancy.
• Q3: How do I set the jumpers for TMR vs. Simplex?
  A: JP1 and JP2 select relay driver mode. Refer to the board edge markings – set both jumpers to “TMR” for ⅔ voting, or “SMX” for simplex. Incorrect settings may cause breaker closure failure.
• Q4: What voltage does the main breaker output provide?
  A: It supplies 125 V DC for the breaker close coil (52G). Ensure the external power source matches this rating.
• Q5: Is this board still supported by GE?
  A: The Mark VI series is legacy, but we stock tested surplus/refurbished units. We provide technical verification before shipment and 12‑month warranty.

Packaging, Shipping & Warranty

• • Package: IS200TTURH1BEC board, terminal block covers, quick guide
• • Dispatch: 24–28 hours after order confirmation
• • Carriers: FedEx, UPS, DHL – express worldwide
• • Warranty: 12 months against defects (materials & workmanship)

<!– Why Buy From Oiltech Controls?

Why Choose Oiltech Controls?

• • 15+ years supplying industrial automation spares globally
• • Every unit tested before shipment (surplus/refurbished)
• • 12‑month warranty with technical verification support
• • Expertise in obsolete control systems – we source hard‑to‑find parts
• • Fast global shipping with tracking via FedEx/UPS/DHL

Contact:
info@oiltechcontrols.com  |
+86 158 8020 0923 (WhatsApp)

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