Description

56-1956-00: Replacement VR-21 Regulator Control Board for Onan 332-1956

This item is built in the USA and backed by a 2-year warranty

Features:

Mounting footprint and terminal locations are identical to original board.
Heavy conformal coating applied for moisture and vibration resistance.
Upgraded components used throughout the board.
Improved, more durable K1 relay.
Rugged barrier strip.
Two-Year Warranty.
Also available: A modified version of the 56-1956-00 to replace Onan P/N 332-2045
Maintenance Suggestion: When replacing the Onan VR21 Controls, Flight Systems Technical Service recommends replacing the SCR Pack*. You can purchase the SCR pack directly from us or through an Onan dealer.
*Older units may use a multi-component SCR assembly (332-0491) – if this has failed, we can convert to use the newer SCR Pack, but the assembly must be sent to our shop.
LIST OF FEATURES:
• Mounting footprint and terminal locations identical to original board. No modification required to install.
• Heavy conformal coating applied for moisture and vibration resistance.
• Upgraded components used throughout the board.
• User-replaceable fuses.
• Rugged barrier strip and improved, more durable power resistors.
• Also available: A modified version of the 56-1956-00 to replace Onan® P/N 332-2045

Dimensions	6 × 5 × 2 in