24VDC electromechanical relay RZDR series

48VDC240VAC12VDC

Overview
Single-pole PCB-mount relay family: RZDR-G□S (Medium-Capacity Type) and RZDR-E□S (Large-Capacity Type). Designed as a reliable interface relay for PLC and microcomputer input/output circuits, suitable for switching signal-level circuits as well as inductive loads.

Features

• Suitable for a wide range of applications from low-current signal circuits to power switching of inductive loads.
• Wide range of current capacities; inductive loads can be switched directly from PLC signal outputs for compatible types.
• Small footprint among Bestact board-mount relays.
• Low coil power consumption to limit temperature rise on the PCB and in control cabinets.
• Compatible with flow soldering processes.
• Vibration and shock characteristics compliant with railway standard IEC 61373 Category 1 Class B.
• Operates across a wide ambient temperature range.
• Backward-compatible with RI series I/O relays.

Ratings and Specifications
Type: RZDR-G10S, RZDR-G01S, RZDR-E10S, RZDR-E01S
Contact arrangement: RZDR-G10S = 1NO; RZDR-G01S = 1NC; RZDR-E10S = 1NO; RZDR-E01S = 1NC
Built-in contact type (Bestact): R25 (for G10S/E10S) and R15 (for G01S/E01S)
Contact performance — Rated operational current (inductive load):
• RZDR-G10S/G01S (built-in R25/R15): 240VAC 0.5 A (50/60 Hz), 115VDC 0.3 A (L/R = 40 ms)
• RZDR-E10S/E01S: 240VAC 1 A (50/60 Hz); 115VDC 0.5 A, 240VDC 0.2 A (L/R = 100 ms)
Minimum operational power rating: 24VDC 1 mA. Failure rate λ60 = 4.6×10⁻⁹ (/time) or less
Initial contact resistance: 500 mΩ or less (6VDC 1A)
Operating time: RZDR-G10S: 4 ms or less (excluding bounce); RZDR-G01S: 3 ms or less; RZDR-E10S: 5 ms or less (excluding bounce); RZDR-E01S: 3 ms or less
Releasing time: RZDR-G10S: 2 ms or less; RZDR-G01S: 7 ms or less (excluding bounce); RZDR-E10S: 3 ms or less; RZDR-E01S: 7 ms or less (excluding bounce)
Bounce time: 3 ms or less
Rated insulation voltage: 250VAC (50/60 Hz)
Insulation resistance: between coil and contact, and across open contacts: 100 MΩ or greater (measured with 500VDC)
Rated impulse voltage: 2500 V (1.2/50 μs)
Withstand voltage:
• Between coil and contact: 1500 VAC, 1 min (50/60 Hz) (higher values for some types as specified)
• Across open contacts: 500 VAC, 1 min (50/60 Hz) (higher values for some types as specified)
Vibration/shock resistance: IEC 61373 Category 1 Class B
Operating temperature: -40℃ to +70℃
Storage temperature: -60℃ to +85℃
Approx. weight: RZDR-G types ≈ 20 g; RZDR-E types ≈ 40 g
Notes: Contact performance refers to the built-in contact elements. Rated operational current applies under rated voltage and specified conditions. Time characteristics measured at +20℃ with coil energized at rated voltage. Temperature characteristics are specified for non-freezing and non-condensing conditions.

Coil Specifications (selected entries)
Type / Contact arrangement / Rated voltage (E) / Coil resistance / Rated power consumption / Example operation characteristics:
RZDR-G10S/D12: 1NO / DC12V / 405 Ω / Approx. 0.4 W / Operating voltage: DC10.8V to DC13.2V; Releasing voltage: DC9.0V or less; Maximum allowable voltage: (transient) higher values limited by thermal considerations.
RZDR-G01S/D12: 1NC / DC12V / 295 Ω / Approx. 0.5 W / Operating voltage: DC10.8V to DC13.2V; Releasing voltage: DC1.2V or greater; Maximum allowable voltage: DC18.0V (refer to detailed table for thresholds).
Other types available with rated voltages DC24V, DC48V etc.; coil resistance and power consumption values vary by model (approx. 0.4 W to 0.7 W). Coil resistance tolerance ±10%; values given at +20℃. Maximum allowable voltage refers to transient limits; some types may operate erroneously if transient exceeds allowable values.

Dimensions
Outline and dimension drawings are available; refer to dimension images on the product page for footprint and mounting details.

Characteristics / Technical specifications

• Product family: PCB-mount single-pole relays (RZDR-G□S medium-capacity; RZDR-E□S large-capacity).
• Contact types: 1NO or 1NC depending on model.
• Built-in Bestact contact elements: R25 or R15.
• Contact switching capability: from signal-level switching to inductive power switching (up to 240VAC 1 A for E types).
• Minimum switching: 24VDC, 1 mA.
• Initial contact resistance: ≤500 mΩ.
• Insulation: rated 250VAC; insulation resistance ≥100 MΩ.
• Impulse withstand: 2500 V (1.2/50 μs).
• Vibration/shock: IEC 61373 Category 1 Class B (railway applicable).
• Operating temperature: -40℃ to +70℃; Storage: -60℃ to +85℃.
• Approx. mass: ~20 g (G types), ~40 g (E types).
• Coil power consumption: approx. 0.4 W to 0.7 W depending on rated voltage and model.