BETA Relay Series Cross-Reference: BLY5, BMY5 & BTA6 vs. Omron / Finder / Weidmüller / HongFa – Complete Parameter Comparison

BETA offers a comprehensive relay portfolio designed to meet diverse application requirements, ranging from general-purpose switching to high-power load control. This cross-reference guide provides a detailed comparison of BETA’s BLY5, BMY5, and BTA6 series against major competitors including Omron, Finder, Weidmüller, and HongFa, enabling engineers and procurement professionals to quickly identify suitable alternatives for their projects.

BLY5 Series – General-Purpose Power Relays

The BLY5 series represents BETA’s mainstream relay product line, offering 1C to 4C contact configurations to accommodate diverse circuit control requirements. This series delivers impressive current ratings, with both BLY5-1C and BLY5-2C supporting dual ratings of 10A/20A, while BLY5-3C and BLY5-4C provide 10A/15A specifications suitable for medium-power load applications.

In terms of competitive alternatives, Omron’s LY series (10A) and Finder’s 56 series (12A) serve as direct replacements for the BLY5-1C. For multi-channel control needs, Weidmüller’s DRL series offers a complete product matrix ranging from DRL170 (16A) to DRL570 (10A), covering the entire BLY5 lineup. Additionally, HongFa’s HF13F series provides 15A and 10A alternatives for BLY5-1C and BLY5-2C respectively, further enriching users’ selection options.

BMY5 & BTA6 Series – Compact and High-Power Relays

The BMY5 series and BTA6 together form BETA’s strategic portfolio in both compact and high-power relay segments. BMY5-2C and BMY5-4C both offer dual current ratings of 5A/10A, while BMY5-3C is dedicated to a single 10A specification, making it suitable for space-constrained and power-sensitive devices. The BTA6, as the high-power model in this group, supports a wide current range of 10A/16A, making it ideal for high-current switching scenarios.

In terms of competitive equivalents, Omron’s MY (5A) and MK (10A) series provide reliable alternatives for BMY5-2C and BMY5-4C respectively. Finder’s 55 series (10A) competes with BMY5-2C, while its 60 series covers both BMY5-4C (7A) and BTA6 (10A). Weidmüller’s DRM series (DRM270/DRM570) and HongFa’s HF18FF and HF10FF series also offer competitive options ranging from 5A to 10A across different models.

Whether your application demands general-purpose power switching or compact high-current control, the BETA relay series—along with its extensive cross-reference alternatives—provides flexible and reliable solutions to meet your design and procurement needs.